{"title":"Allen-Bradley Flex I\/O","description":"\u003cp\u003eAllen-Bradley Flex I\/O (1794- \/ 1797-) is a versatile, distributed I\/O system designed to reduce wiring costs and installation time. Its modular architecture consists of a terminal base, an I\/O module, and a communication adapter, allowing for easy hot-swapping under power. Technical characteristics include support for a wide range of discrete, analog, and specialty modules with hazardous area (Ex) certifications available in the 1797 series. Functionally, Flex I\/O links field sensors to \u003ca href=\"https:\/\/www.plcprotech.com\/collections\/allen-bradley-controllogix\"\u003eControlLogix\u003c\/a\u003e or \u003ca href=\"https:\/\/www.plcprotech.com\/collections\/allen-bradley-compactlogix\"\u003eCompactLogix\u003c\/a\u003e controllers over multiple networks. This flexibility makes it ideal for distributed process control in oil and gas, chemical processing, and wastewater treatment applications.\u003c\/p\u003e","products":[{"product_id":"allen-bradley-1794-oe12-flex-i-o-12-point-analog-output-module","title":"Allen-Bradley 1794-OE12 FLEX I\/O 12-Point Analog Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-OE12\u003c\/strong\u003e is a high-density analog output module designed for the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed I\/O platform. This hardware component functions as a multi-channel signal generator that converts digital data words from a central system controller into standardized analog current or voltage outputs. Operating at high channel density, the unit provides twelve single-ended output paths within a narrow modular layout, reducing physical footprint requirements inside remote electrical control panels.\u003c\/p\u003e\n\u003cp\u003eConfigurable per channel, the device drives variable-speed motor controllers, proportional control valves, industrial actuators, and chart recorders across distributed networks. The \u003cstrong\u003e1794-OE12\u003c\/strong\u003e interfaces with host programmable automation controllers via local \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e adapters communicating over \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e, \u003cstrong\u003eControlNet\u003c\/strong\u003e, or \u003cstrong\u003eDeviceNet\u003c\/strong\u003e system networks. The module plugs directly into standard pre-wired terminal base units, securing backplane connections to the FlexBus automatically for reliable use in water treatment systems, chemical processing, paper mills, and material manipulation facilities.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTwelve high-density single-ended analog output channels for optimized panel space utilization.\u003c\/li\u003e\n\u003cli\u003eSelectable channel configurations for standard 0 to 20 mA current loops or +\/-10V voltage signals.\u003c\/li\u003e\n\u003cli\u003eSupport for Removal and Insertion Under Power (RIUP) allowing hardware swaps without disabling network operations.\u003c\/li\u003e\n\u003cli\u003e12-bit digital-to-analog converter resolution delivering precise control steps for field equipment.\u003c\/li\u003e\n\u003cli\u003eIntegrated diagnostic verification registers continuously mapping circuit parameters over the local backplane.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProportional valve positioning and pneumatic actuator signal throttling.\u003c\/li\u003e\n\u003cli\u003eVariable frequency drive speed reference signal distribution.\u003c\/li\u003e\n\u003cli\u003eIndustrial process variable mirroring and paper mill line speed adjustments.\u003c\/li\u003e\n\u003cli\u003eMulti-channel analog metering panel instrument drive loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-OE12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eHigh-Density Analog Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e12 Channels, Single-Ended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal Ranges\u003c\/td\u003e\n\u003ctd\u003e0 to 20 mA, 4 to 20 mA, +\/-10V, 0 to 10V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Resolution\u003c\/td\u003e\n\u003ctd\u003e12-bit (320 uV\/count Voltage, 4.88 uA\/count Current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Absolute Accuracy\u003c\/td\u003e\n\u003ctd\u003e0.1% Full Scale at 25 Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Accuracy Drift\u003c\/td\u003e\n\u003ctd\u003e0.004% Full Scale per degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e24V DC Nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10.0V DC to 31.2V DC (includes 5% AC ripple)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Current Load\u003c\/td\u003e\n\u003ctd\u003e320 mA at 24V DC, 720 mA at 10V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Draw\u003c\/td\u003e\n\u003ctd\u003e80 mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Dissipation\u003c\/td\u003e\n\u003ctd\u003e4.0 W at 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Thermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e4.7 BTU\/hour at 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Resistive Load (Current)\u003c\/td\u003e\n\u003ctd\u003e750 ohms at 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Resistive Load (Voltage)\u003c\/td\u003e\n\u003ctd\u003e3.3 kilohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Output Current Load\u003c\/td\u003e\n\u003ctd\u003e3 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Vibration\u003c\/td\u003e\n\u003ctd\u003e5 g at 10 to 500 Hz per IEC 68-2-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Shock\u003c\/td\u003e\n\u003ctd\u003e30 g peak acceleration, 11 ms pulse width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.10 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e94.0 mm x 94.0 mm x 53.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Connection Node (1794-TB3G)\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Channel Allocation\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal 0 to Terminal 11\u003c\/td\u003e\n\u003ctd\u003eAnalog Output Signal Pins for Channels 0 through 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal 16 to Terminal 27\u003c\/td\u003e\n\u003ctd\u003eAnalog Signal Return Common Paths (Return 0 to Return 11)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal 36 \/ 37\u003c\/td\u003e\n\u003ctd\u003eExternal +24V DC Primary Operational Power Intake\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal 38 \/ 39\u003c\/td\u003e\n\u003ctd\u003eExternal DC Power Common Return Reference Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003eHook the upper tracking slots on the back panel of the module housing onto the upper lip of standard 35 mm DIN tracking. Apply uniform downward and inward physical force until the spring-loaded lower metal retention tab snaps shut behind the bottom rail track.\u003c\/p\u003e\n\u003ch3\u003eTerminal Base Insertion\u003c\/h3\u003e\n\u003cp\u003eAlign the built-in structural plastic guide lines on the bottom interface of the operational module with the receiving socket grooves on the pre-wired terminal base unit (such as a 1794-TB3G or 1794-TB3GS). Push the electronic component directly into the interface socket until the latch ears click outward to lock it into place.\u003c\/p\u003e\n\u003ch3\u003eField Signal Cable Shielding\u003c\/h3\u003e\n\u003cp\u003eExecute all field loop connections using individual twisted shielded-pair instrumentation cables. Ground the overall copper braided drain shield wire at the functional chassis grounding terminals built into the terminal base assembly; do not ground both ends of the shield to prevent ground loops.\u003c\/p\u003e\n\u003ch3\u003eCable Routing Constraints\u003c\/h3\u003e\n\u003cp\u003eIsolate the low-voltage direct current analog output signaling cables away from electrical supply lines, direct current motor conductors, variable speed drive links, and inductive relay lines inside cabinet conduits to eliminate high-frequency noise injection.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat types of analog output parameters can this module generate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt can be software-configured to generate standard current metrics like 4 to 20 mA and 0 to 20 mA, or voltage limits like 0 to 10V and +\/-10V.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this device provide separate channel-to-channel electrical isolation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the twelve independent output circuits are single-ended and reference a shared internal signal common line.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be replaced while the system backplane remains powered?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it features removal and insertion under power attributes, allowing live field swaps without interrupting logic communication blocks on adjacent rail slots.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich terminal base assemblies are approved for use with this device?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module is engineered to be mounted on multi-point grounded terminal base blocks, specifically the 1794-TB3G or 1794-TB3GS units.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens to the output signals if communication with the controller drops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module can be configured via software to either hold its last valid output state or clear to a specific safe value when a network error occurs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs an external power supply connection required to run this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, a nominal 24V DC external power supply loop must be run to the terminal base block to drive the internal digital-to-analog conversion circuits and power the field loops.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the continuous analog conversion resolution of the channels?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit converts internal logic registers into physical field outputs using a standard 12-bit digital-to-analog matrix structure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do the front-facing LED status indicators communicate to an engineer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe light indicators provide real-time status diagnostics for the main operational state of the module and indicate external power availability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum electrical resistance threshold when operating in current mode?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe current loops can drive external loops with a total circuit resistive load up to a maximum parameter of 750 ohms at 24V DC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are the independent channel measurement parameters adjusted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe required operational mode, range select values, and default state attributes are configured using the host PLC programming software environment.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695173661035,"sku":"1794-OE12","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-oe12-analog-output-module-1erdnvbl33l_191ad91a-97d9-42b5-b804-0cbb06abd36f.jpg?v=1766114142"},{"product_id":"allen-bradley-1794-ib16xt-flex-i-o-extended-temperature-digital-sinking-input-module","title":"Allen-Bradley 1794-IB16XT FLEX I\/O Extended Temperature Digital Sinking Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-IB16XT\u003c\/strong\u003e is a ruggedized high-density discrete input module engineered for the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed network terminal platform. This specialized module functions as a 24V DC binary status processor, designed to monitor and translate digital signals from field sensing devices under extreme environmental conditions. Operating within a sinking current configuration, the internal electronics channel current from sourcing field-side switches through its sensing nodes to a centralized common return rail, maintaining clean status register processing across open control network systems.\u003c\/p\u003e\n\u003cp\u003eAs an \u003cstrong\u003eXT\u003c\/strong\u003e (Extended Temperature) variant, this industrial hardware block incorporates resilient component architectures and factory conformal coating to withstand thermal shifts ranging from \u003cstrong\u003e-20 to 70 Celsius\u003c\/strong\u003e. Armed with sixteen non-isolated channels, the device scales installation densities inside compact distributed control enclosures. The \u003cstrong\u003e1794-IB16XT\u003c\/strong\u003e executes data data routing back to master programmable logic controllers by communicating through standard network adapters over \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e, \u003cstrong\u003eControlNet\u003c\/strong\u003e, or \u003cstrong\u003eDeviceNet\u003c\/strong\u003e system buses. It is standard across oil and gas upstream stations, marine propulsion engine rooms, pipeline telemetry systems, and heavy mineral milling installations requiring continuous uptime in unconditioned environments.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExtreme thermal performance scaling safely from -20 to 70 Celsius.\u003c\/li\u003e\n\u003cli\u003eFactory applied conformal coating protecting internal substrates from moisture and airborne chemical agents.\u003c\/li\u003e\n\u003cli\u003eSixteen high-density discrete sinking inputs for maximum I\/O count optimization per rail segment.\u003c\/li\u003e\n\u003cli\u003eRemoval and Insertion Under Power (RIUP) allowing live replacement without halting adjacent bus traffic.\u003c\/li\u003e\n\u003cli\u003eMulti-point front-panel LED indicators providing visual diagnostic logging of individual channel logic states.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMidstream pipeline pumping station switch monitoring in unconditioned field cabinets.\u003c\/li\u003e\n\u003cli\u003eOffshore drilling infrastructure emergency status and valve position tracking.\u003c\/li\u003e\n\u003cli\u003eHeavy machinery mining excavations subject to high ambient thermal fluctuations.\u003c\/li\u003e\n\u003cli\u003eOutdoor water treatment wastewater aeration station control loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O XT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-IB16XT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eExtended Temperature Digital Sinking Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16 Channels, Non-Isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10V DC to 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Current Range\u003c\/td\u003e\n\u003ctd\u003e2.0 mA minimum to 12.0 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal On-State Current\u003c\/td\u003e\n\u003ctd\u003e8.0 mA at 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Voltage Maximum\u003c\/td\u003e\n\u003ctd\u003e5.0V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Current Maximum\u003c\/td\u003e\n\u003ctd\u003e1.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Impedance\u003c\/td\u003e\n\u003ctd\u003e4.6 kilohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Draw\u003c\/td\u003e\n\u003ctd\u003e30 mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Isolation Voltage\u003c\/td\u003e\n\u003ctd\u003e50V (Basic Insulation Type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Filter Time (On to Off)\u003c\/td\u003e\n\u003ctd\u003eProgrammable (0.25 ms nominal to 8.0 ms maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating Protection\u003c\/td\u003e\n\u003ctd\u003eFactory Conformal Coated PCB Assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.09 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e46 mm x 94 mm x 53 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Connection Block Node\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Signal Path Allocation\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal 0 to Terminal 15\u003c\/td\u003e\n\u003ctd\u003eExtended Temperature Sinking Input Channels 0 through 15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e+V (External Supply Node)\u003c\/td\u003e\n\u003ctd\u003e24V DC Sourcing Sensor Operational Power Distribution Path\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOM (External Supply Return)\u003c\/td\u003e\n\u003ctd\u003eCommon Direct Current System Ground Reference Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003eEngage the upper retention hooks of the rear module housing onto the top track flange of standard 35 mm DIN rail lines. Push down and pivot the bottom portion of the enclosure inward until the embedded steel latch assembly locks around the lower tracking rail lip.\u003c\/p\u003e\n\u003ch3\u003eTerminal Base Seating\u003c\/h3\u003e\n\u003cp\u003eAlign the integrated physical guide tracks located on the bottom face of the operational module with the receiving key slots on the pre-installed conformal coated terminal base unit. Slide the hardware firmly into the interface socket matrix until the dual side latches click outwards to lock it in place.\u003c\/p\u003e\n\u003ch3\u003eSinking Configuration Wiring\u003c\/h3\u003e\n\u003cp\u003eWire external sourcing components directly to input points 0 through 15. Run the primary positive 24V DC distribution leg through the matching power tier of the terminal base block to keep standard potential profiles common across all connected sensor nodes.\u003c\/p\u003e\n\u003ch3\u003eThermal Integrity Management\u003c\/h3\u003e\n\u003cp\u003eEnsure ambient air circulation pathways are completely free of structural debris within the enclosure. Maintain the factory minimum 50 mm clearance boundaries above and below the terminal assembly rail to enable convective cooling under high ambient operating profiles.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes this module different from the standard 1794-IB16 model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit features an extended operating temperature threshold (-20 to 70 Celsius) and integrated conformal coating on the internal circuit structures for hazardous environment deployment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this hardware module require a specific terminal base assembly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it should be paired with extended temperature or conformal coated terminal base units like the 1794-TB3K or 1794-TB3SK to maintain system environmental compliance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the sinking circuit designation require from physical field components?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sinking input path requires external devices to function as current sourcing components, supplying 24V DC into the input terminals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this component be pulled from the rail during system runtime?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it supports removal and insertion under power, enabling live replacement without interrupting power or communication data blocks on the remainder of the rail.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the input channels protected against high-frequency electrical contact bounce?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the input filter time constant can be adjusted via the master system programming software to filter out noise from noisy mechanical switch elements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat parameters determine a true off-state logic condition?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe channel registers an off-state when the voltage drops below 5.0V DC or the incoming input current drops under 1.5 mA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs separate external power required to drive the field sensory loops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, a nominal 24V DC external operational loop must be connected directly to the terminal base block to drive the field-side input tracking mechanisms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do the front-facing light-emitting diode indicators communicate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe individual yellow lights illuminate when the corresponding input channel senses an active on-state voltage parameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this specific assembly process input data from alternating current circuits?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, this unit is engineered exclusively to track low-voltage direct current values within a 10V DC to 31.2V DC window.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this module map its data bits back to a ControlLogix rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe hardware passes binary status values across the local FlexBus backplane to a communication adapter, which then transmits the data registers across the factory network.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695173726571,"sku":"1794-IB16XT","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-ib16xt-flex-i-o-xt-24vdc-digital-input-module-gi3sego2sib_4c438712-275d-4378-9367-8330f7f420cb.jpg?v=1766114144"},{"product_id":"allen-bradley-1794-ib16-flex-i-o-digital-sinking-input-module","title":"Allen-Bradley 1794-IB16 FLEX I\/O Digital Sinking Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-IB16\u003c\/strong\u003e is a high-density discrete input hardware component designed for the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed network terminal system. This module functions as a 24V DC binary status processor, translating raw electrical voltage conditions from physical sensors into logical data bits utilized by a master logic controller. Operating within a sinking current configuration, the internal circuits route electricity from sourcing field-side elements to a centralized return node, managing reliable state classification across automated plant networks.\u003c\/p\u003e\n\u003cp\u003eEquipped with sixteen non-isolated input channels, the device scales installation densities inside small control cabinet spaces while driving down overall hardware footprints. The \u003cstrong\u003e1794-IB16\u003c\/strong\u003e handles signal data routing over wide networks by linking back to main processors via appropriate \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e network adapters over \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e, \u003cstrong\u003eControlNet\u003c\/strong\u003e, or \u003cstrong\u003eDeviceNet\u003c\/strong\u003e system buses. The module mounts directly into pre-wired terminal base assemblies, allowing for immediate bus linking and quick deployment in packaging systems, high-speed sorting facilities, pump station automation, and assembly machinery loops.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSixteen discrete sinking input channels enabling dense field sensor aggregation.\u003c\/li\u003e\n\u003cli\u003eNominal 24V DC operational envelope matching industrial proximity switches and limit devices.\u003c\/li\u003e\n\u003cli\u003eSupport for Removal and Insertion Under Power (RIUP) enabling hot-swapping during live bus states.\u003c\/li\u003e\n\u003cli\u003eIndividual front-panel light-emitting diode indicators displaying real-time logic states per point.\u003c\/li\u003e\n\u003cli\u003eConfigurable digital filter timing constraints to filter external inductive contact bounce.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProximity sensor matrix tracking and pneumatic cylinder positioning loops.\u003c\/li\u003e\n\u003cli\u003eFactory operator panel pushbutton stations and selector switch array inputs.\u003c\/li\u003e\n\u003cli\u003eConveyor track jam detection, alignment switches, and counting sensors.\u003c\/li\u003e\n\u003cli\u003eSafety enclosure door interlocks and physical mechanical limit switch logging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-IB16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital Sinking Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16 Channels, Non-Isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10V DC to 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Current Range\u003c\/td\u003e\n\u003ctd\u003e2.0 mA minimum to 12.0 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal On-State Current\u003c\/td\u003e\n\u003ctd\u003e8.0 mA at 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Voltage Maximum\u003c\/td\u003e\n\u003ctd\u003e5.0V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Current Maximum\u003c\/td\u003e\n\u003ctd\u003e1.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Impedance\u003c\/td\u003e\n\u003ctd\u003e4.6 kilohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Draw\u003c\/td\u003e\n\u003ctd\u003e30 mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Isolation Voltage\u003c\/td\u003e\n\u003ctd\u003e50V (Basic Insulation Type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Filter Time (On to Off)\u003c\/td\u003e\n\u003ctd\u003eProgrammable (0.25 ms nominal to 8.0 ms maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.09 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e46 mm x 94 mm x 53 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Connection Block Node\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Signal Path Allocation\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal 0 to Terminal 15\u003c\/td\u003e\n\u003ctd\u003eDiscrete Sinking Input Channels 0 through 15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e+V (External Supply Node)\u003c\/td\u003e\n\u003ctd\u003e24V DC Sourcing Sensor Operational Power Distribution Path\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOM (External Supply Return)\u003c\/td\u003e\n\u003ctd\u003eCommon Direct Current System Ground Reference Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003eEngage the upper retention hooks of the rear module housing onto the top track flange of standard 35 mm DIN rail lines. Push down and pivot the bottom portion of the enclosure inward until the embedded steel latch assembly locks around the lower tracking rail lip.\u003c\/p\u003e\n\u003ch3\u003eTerminal Base Seating\u003c\/h3\u003e\n\u003cp\u003eAlign the integrated physical guide tracks located on the bottom face of the operational module with the receiving key slots on the pre-installed terminal base unit. Slide the hardware firmly into the interface socket matrix until the dual side latches click outwards to lock it in place.\u003c\/p\u003e\n\u003ch3\u003eSinking Configuration Wiring\u003c\/h3\u003e\n\u003cp\u003eWire external sourcing components directly to input points 0 through 15. Run the primary positive 24V DC distribution leg through the matching power tier of the terminal base block to keep standard potential profiles common across all connected sensor nodes.\u003c\/p\u003e\n\u003ch3\u003eCabinet Cable Shielding\u003c\/h3\u003e\n\u003cp\u003eKeep low-voltage sensory signal lines separated from alternating current motor leads, active control power relays, and inductive drive fields within shared electrical conduit tracking to eliminate airborne electromagnetic signal distortion.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the sinking circuit configuration imply for field sensors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sinking input configuration requires that all connected devices operate as current sourcing components, feeding voltage into the input points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre individual input channels on this unit isolated from each other?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the sixteen distinct input points are non-isolated and reference a shared common signal return line inside the electronic module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan an automation engineer safely swap this device while power is applied?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the hardware includes removal and insertion under power capabilities, which allows for live replacement without disabling the wider bus adapter array.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich terminal base variations accommodate this specific input block?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module is paired with multi-tier terminal base blocks such as the 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3K, or 1794-TBN models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can an operator stabilize high-frequency chatter from mechanical switch loops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe digital input filter response constants can be modified inside the engineering programming software to clear up messy input signals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat parameters register as a reliable off-state condition?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA channel reads as an off-state when the voltage drops below 5.0V DC or the incoming loop current values fall under 1.5 mA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this device require independent external power to process inputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, a nominal 24V DC external electrical loop must be wired straight into the terminal base infrastructure to power the field-side sensing electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat function do the yellow indicators on the top faceplate perform?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach LED illuminates when its matching input point senses an active on-state voltage parameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this specific model accept alternating current voltage inputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, this module processes low-voltage direct current parameters exclusively across a 10V DC to 31.2V DC range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this hardware pass discrete data blocks to a central PLC?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit transmits channel data bits across the local FlexBus backplane to a network adapter, which maps the data into network registers.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695173857643,"sku":"1794-IB16","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-ib16-flex-16-point-digital-input-module-jq1gl25qkei_2b95908b-c757-4bf8-b8aa-96441d1530b3.jpg?v=1766114150"},{"product_id":"allen-bradley-1794-ir8-flex-i-o-rtd-input-module","title":"Allen-Bradley 1794-IR8 FLEX I\/O RTD Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-IR8\u003c\/strong\u003e is a high-density resistance temperature detector (\u003cstrong\u003eRTD\u003c\/strong\u003e) input module serving as an integrated component within the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed network terminal matrix. This field-side hardware solution interfaces directly with diverse temperature elements to capture highly accurate thermal variations, executing precise analog-to-digital data conversions across an isolated backplane. By shifting conversion processes directly to remote processing junctions on standard DIN rails, the device reduces complex analog cable lengths back to central processing nodes, transmitting values over communication adapters including \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e, \u003cstrong\u003eControlNet\u003c\/strong\u003e, and \u003cstrong\u003eDeviceNet\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis industrial unit features eight non-isolated input channels configured to process two-wire, three-wire, or four-wire RTD sensors, as well as pure resistance sensor signals. The \u003cstrong\u003e1794-IR8\u003c\/strong\u003e plugs directly into a standard compatible terminal base unit, drawing operational power and establishing bus backplane lines automatically upon connection. This assembly is standard across petrochemical refining facilities, plastic extrusion plants, power grid sub-stations, and commercial cold-storage installations requiring continuous multi-point ambient and medium thermal monitoring.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEight channels for flexible scaling of thermal instrumentation.\u003c\/li\u003e\n\u003cli\u003eNative compatibility with diverse platinum, nickel, and copper RTD types alongside pure ohmic sensor paths.\u003c\/li\u003e\n\u003cli\u003eSelectable digital filtering settings minimizing high-frequency electrical background noise.\u003c\/li\u003e\n\u003cli\u003eLive insertion capability supporting hardware swaps without interrupting communication to adjacent rail components.\u003c\/li\u003e\n\u003cli\u003eDirect register mapping via the FlexBus backplane configuration for seamless integration into the host database.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-point motor bearing temperature protection networks.\u003c\/li\u003e\n\u003cli\u003ePetrochemical vessel and jacketed chemical reactor temperature tracking.\u003c\/li\u003e\n\u003cli\u003eFood processing pasteurization line monitoring.\u003c\/li\u003e\n\u003cli\u003eHVAC air-handler heat-exchanger efficiency verification loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-IR8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eRTD Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e8 Channels, Non-Isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Sensor Types\u003c\/td\u003e\n\u003ctd\u003e100, 200, 500, 1000 ohm Platinum; 120 ohm Nickel; 10 ohm Copper; 0 to 433 ohm Resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit across full range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Draw\u003c\/td\u003e\n\u003ctd\u003e20 mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Supply\u003c\/td\u003e\n\u003ctd\u003e24V DC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperational Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10V DC to 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e5.5 W maximum at 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e0.09 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Dimensions\u003c\/td\u003e\n\u003ctd\u003e46 mm x 94 mm x 53 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Block Connection (Typical 1794-TB3G)\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eL(+) \/ L(-)\u003c\/td\u003e\n\u003ctd\u003eExt. Power Supply 24V DC Input \/ Return Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 0 to Channel 7 Source\u003c\/td\u003e\n\u003ctd\u003eCurrent Excitation Source Terminals for RTD Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 0 to Channel 7 Sense (+)\u003c\/td\u003e\n\u003ctd\u003ePositive Differential Voltage Input Pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel 0 to Channel 7 Return (-)\u003c\/td\u003e\n\u003ctd\u003eNegative Common Return Reference Connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003eHook the top groove of the module enclosure under the upper lip of standard 35 mm DIN tracking. Apply continuous firm downward pressure on the lower half of the housing until the integrated spring-loaded retention tab snaps shut behind the bottom tracking bar.\u003c\/p\u003e\n\u003ch3\u003eTerminal Base Seating\u003c\/h3\u003e\n\u003cp\u003eAlign the dual guide tracks of the electronic module with the matching alignment grooves on the pre-wired terminal base unit. Slide the device flush into the base socket matrix until the top and bottom latch bars snap outward into their locked configurations.\u003c\/p\u003e\n\u003ch3\u003eShielding and Grounding\u003c\/h3\u003e\n\u003cp\u003eRun all RTD sensor circuits utilizing individual high-quality shielded twisted-pair cables. Terminate the overall copper braided shield drain wire explicitly at the dedicated functional chassis ground points built into the terminal base assembly.\u003c\/p\u003e\n\u003ch3\u003eSensor Cable Length Constraints\u003c\/h3\u003e\n\u003cp\u003eKeep three-wire and four-wire sensor cable runs within official resistance tolerances to prevent adding lead-wire impedance offset values to the internal temperature computation register matrix.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the core function of this module assembly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt provides an automated tracking interface that reads analog resistance values from RTD sensors and translates them into digital registers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit handle two-wire and three-wire RTD sensors simultaneously?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, each channel can be wired independently to match two-wire, three-wire, or four-wire probe layouts based on terminal configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the individual instrumentation channels isolated from each other?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the eight measurement channels share a common internal reference within the conversion circuitry, though they are isolated from the main control bus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the module deal with an open sensor wire fault?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module sets an over-range status flag register for the damaged channel and outputs a specific value to indicate a broken sensor circuit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe to pull this module off the rail while the main PLC is running?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it features removal and insertion under power capabilities, which allows engineers to perform field hot-swaps safely without disabling the network.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat terminal base units are compatible with this device?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module is commonly paired with the 1794-TB3G, 1794-TB3GS, or 1794-TB32 terminal base units to manage the RTD signal wiring paths.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this device require a separate external power connection?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, a nominal 24V DC external power source must be run to the terminal base block to power the internal sensor excitation and conversion matrices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this device read raw ohm values instead of temperature parameters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the channels can be software-configured to work in a pure resistance mode, measuring raw ohm values up to 433 ohms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the sensor selection configured inside the system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe target sensor material profile and wire configuration are designated by setting configuration parameters in the controller programming environment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the digital conversion resolution of the measurement data?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe internal analog-to-digital converters process inputs using a precise 16-bit resolution matrix to deliver accurate temperature steps.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695177560427,"sku":"1794-IR8","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-ir8-rtd-input-module-2iiprumqonj_9d58e341-e35e-4249-aa59-6399178686ea.jpg?v=1766114168"},{"product_id":"allen-bradley-1794-aentrxt-flex-i-o-xt-ethernet-ip-dual-port-adapter-module","title":"Allen-Bradley 1794-AENTRXT FLEX I\/O XT EtherNet\/IP Dual-Port Adapter Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-AENTRXT\u003c\/strong\u003e is a ruggedized communications adapter module engineered for the \u003cstrong\u003eFLEX I\/O XT\u003c\/strong\u003e distributed input\/output platform. This device functions as the network interface link that connects a localized cluster of I\/O modules to a centralized programmable automation controller via an \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e network infrastructure. Armed with integrated dual RJ45 Ethernet ports, the component natively supports Device Level Ring (\u003cstrong\u003eDLR\u003c\/strong\u003e), linear, and star network topologies, enabling media redundancy that preserves system tracking capabilities if a single physical line break occurs.\u003c\/p\u003e\n\u003cp\u003eAs an \u003cstrong\u003eXT\u003c\/strong\u003e (Extended Temperature) variant, this industrial hardware block incorporates resilient component architectures and factory conformal coating to withstand extreme thermal conditions ranging from \u003cstrong\u003e-25 to 70 Celsius\u003c\/strong\u003e. The \u003cstrong\u003e1794-AENTRXT\u003c\/strong\u003e manages high-speed bidirectional data exchanges, translating physical field-side input\/output registers across the isolated backplane using an integrated FlexBus connection interface. It is standard across oil and gas upstream stations, offshore drilling platforms, wastewater aeration facilities, and remote pipeline telemetry panels requiring continuous industrial uptime in unconditioned environments.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExtreme thermal performance scaling safely from -25 to 70 Celsius.\u003c\/li\u003e\n\u003cli\u003eFactory applied conformal coating protecting internal substrates from moisture and airborne chemical agents.\u003c\/li\u003e\n\u003cli\u003eDual RJ45 ports providing native Device Level Ring (DLR) and linear media redundancy.\u003c\/li\u003e\n\u003cli\u003eEmbedded web server configuration tools enabling remote network monitoring and IP assignment via standard web browsers.\u003c\/li\u003e\n\u003cli\u003eSupport for up to eight standard or extended temperature FLEX I\/O modular blocks on a single rail cluster.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMidstream pipeline pumping station data aggregation in unconditioned field cabinets.\u003c\/li\u003e\n\u003cli\u003eOffshore drilling infrastructure remote I\/O link distribution networks.\u003c\/li\u003e\n\u003cli\u003eHeavy machinery mining excavations subject to high ambient thermal fluctuations.\u003c\/li\u003e\n\u003cli\u003eOutdoor water treatment facilities and remote localized utility stations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O XT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-AENTRXT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP Dual-Port Communications Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Rate\u003c\/td\u003e\n\u003ctd\u003e10\/100 Mbps, Auto-Negotiation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Connections\u003c\/td\u003e\n\u003ctd\u003eTwo (2) RJ45 Category 5 copper ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Topologies\u003c\/td\u003e\n\u003ctd\u003eDevice Level Ring (DLR), Linear, Star\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum I\/O Module Capacity\u003c\/td\u003e\n\u003ctd\u003e8 FLEX I\/O \/ FLEX I\/O XT modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of TCP\/IP Connections\u003c\/td\u003e\n\u003ctd\u003e96\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of CIP Connections\u003c\/td\u003e\n\u003ctd\u003e128\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Backplane Current Output\u003c\/td\u003e\n\u003ctd\u003e640 mA at 5V DC maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e24V DC Nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperational Voltage Range\u003c\/td\u003e\n\u003ctd\u003e19.2V DC to 31.2V DC (includes 5% AC ripple)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption Load\u003c\/td\u003e\n\u003ctd\u003e450 mA maximum at 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation Maximum\u003c\/td\u003e\n\u003ctd\u003e7.1 W at 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation Maximum\u003c\/td\u003e\n\u003ctd\u003e24.2 BTU\/hour at 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-25 to 70 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating Protection\u003c\/td\u003e\n\u003ctd\u003eFactory Conformal Coated PCB Assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA \/ Singapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.23 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e87 mm x 94 mm x 92 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConnector \/ Switch Node\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Port 1 (RJ45)\u003c\/td\u003e\n\u003ctd\u003ePrimary network media interface connection point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Port 2 (RJ45)\u003c\/td\u003e\n\u003ctd\u003eSecondary redundancy or linear drop network interface point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemovable Power Terminals\u003c\/td\u003e\n\u003ctd\u003eIntake interface for 24V DC external operational voltage power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Address Rotary Switches\u003c\/td\u003e\n\u003ctd\u003eThree hardware thumbwheel dials for setting the last octet of the IP address\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus LED Indicators\u003c\/td\u003e\n\u003ctd\u003eVisual diagnostic arrays (Module, Network, Link 1, Link 2, Interconnect)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003eHook the upper tracking slots on the back panel of the module housing onto the upper lip of standard zinc-plated 35 mm DIN tracking. Apply uniform downward and inward physical force until the spring-loaded lower metal retention tab snaps shut behind the bottom rail track. Secure the rail string with heavy-duty end anchors.\u003c\/p\u003e\n\u003ch3\u003eFlexBus Backplane Connection\u003c\/h3\u003e\n\u003cp\u003ePosition the network adapter at the leftmost position on the DIN rail track segment. Align the side-facing female FlexBus socket of the first functional I\/O terminal base block with the male interface pins protruding from the right side of the adapter casing, sliding the base laterally until the interlocking tabs lock into position.\u003c\/p\u003e\n\u003ch3\u003eNetwork Address Configuration\u003c\/h3\u003e\n\u003cp\u003eFor standalone or default networks, adjust the three front-panel rotary switches to select an explicit decimal code value between 001 and 254. This selection dynamically overrides and assigns the terminal IP configuration block to 192.168.1.xxx. Set the switches to 888 to initiate a full factory reset.\u003c\/p\u003e\n\u003ch3\u003eThermal Integrity Management\u003c\/h3\u003e\n\u003cp\u003eEnsure ambient air circulation pathways are completely free of structural debris within the enclosure. Maintain the factory minimum 50 mm clearance boundaries above, below, and to the sides of the terminal assembly rail to enable natural convective cooling under high ambient operational profiles.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat protocol does this communications component utilize?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt communicates natively across EtherNet\/IP networks deploying standard Common Industrial Protocol configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat function does the dual-port setup execute inside this device?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe dual RJ45 interface enables the device to support Device Level Ring topologies for media redundancy or daisy-chain linear layouts without external switches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the extended temperature threshold rating for this hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module is fully certified to maintain uninterrupted data conversions under ambient parameters shifting from -25 to 70 Celsius.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan an engineer hot-swap this communications adapter while the I\/O rack is running?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, while individual I\/O modules support live removal, disconnecting or removing the network adapter disrupts backplane data transfer for the whole rail cluster.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum current load this adapter can feed to the connected I\/O blocks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe integrated power circuit supplies a maximum of 640 mA at 5V DC backplane potential down the FlexBus line to power attached extension modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is a unique IP address assigned if the thumbwheel switches are set to zero?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf set to 000, the adapter defaults to checking a DHCP or BOOTP server utility across the open network to pull its assigned IP registers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat terminal base block parameters should be matched for the XT series?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo preserve the robust environmental parameters of the XT adapter, it should be paired exclusively with conformal coated components like the 1794-TB3K.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cable specification is mandatory for network tracking?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCategory 5 or higher shielded twisted-pair (STP) industrial Ethernet copper cabling runs are required to mitigate electromagnetic distortion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do flashing red patterns on the Module Status display mean?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA flashing red indication typically signals that a recoverable minor fault or configuration data block mismatch exists inside the internal memory map.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this adapter unit contain an embedded web management utility?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, typing the module's IP address into a standard network web browser opens an internal portal for diagnostics, status parameters, and configuration viewing.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695178871147,"sku":"1794-AENTRXT","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-aentrxt-network-adapter-5ech5pmvypm_935d8dd8-de49-471b-a538-f2391523a902.jpg?v=1766114224"},{"product_id":"allen-bradley-1797-acnr15-flex-ex-controlnet-ex-redundant-media-adapter-module","title":"Allen-Bradley 1797-ACNR15 FLEX Ex ControlNet Ex Redundant Media Adapter Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1797-ACNR15\u003c\/strong\u003e is an intrinsically safe communications adapter designed for the \u003cstrong\u003eFLEX Ex\u003c\/strong\u003e distributed I\/O platform. This module forms the intelligent link between a central programmable automation controller and localized \u003cstrong\u003eFLEX Ex\u003c\/strong\u003e input\/output architectures operating within classified hazardous boundaries. It manages high-speed serial data exchanges and provides a structural interface that passes communication and power down the local backplane via an integrated FlexBus connection without compromising the system energy constraints.\u003c\/p\u003e\n\u003cp\u003eEquipped with dual coaxial ports, the device executes redundant media control routing to maintain consistent communication links even in the event of a physical trunk line failure. The \u003cstrong\u003e1797-ACNR15\u003c\/strong\u003e operates natively on \u003cstrong\u003eControlNet\u003c\/strong\u003e networks, converting standard communication payloads into low-energy signals rated for explosive gas, vapor, or dust environments. It is extensively installed in off-shore oil rigs, chemical processing areas, tank monitoring systems, and pharmaceutical batch plants requiring localized control nodes directly within hazardous zones.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDual ControlNet BNC ports providing native media redundancy for high-availability systems.\u003c\/li\u003e\n\u003cli\u003eIntrinsically safe circuitry enabling reliable operation directly within classified areas.\u003c\/li\u003e\n\u003cli\u003eBuilt-in galvanic isolation mechanisms separating field-side elements from main bus architectures.\u003c\/li\u003e\n\u003cli\u003eNode address configuration via accessible integrated front-panel switches.\u003c\/li\u003e\n\u003cli\u003eComprehensive diagnostic light-emitting diodes displaying active network statuses and fault codes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOffshore production platforms utilizing continuous safety shutdown networks.\u003c\/li\u003e\n\u003cli\u003eChemical refining facility zone-mounted remote I\/O concentration points.\u003c\/li\u003e\n\u003cli\u003ePetroleum storage tank farms requiring high-uptime telemetry aggregation.\u003c\/li\u003e\n\u003cli\u003eSpecialty grain processing silos with explosive atmospheric conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX Ex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1797-ACNR15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eControlNet Ex Redundant Media Adapter Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eControlNet V1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Rate\u003c\/td\u003e\n\u003ctd\u003e5 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eTwo (2) ControlNet Ex BNC tap drop connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e8 FLEX Ex modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Power Supply\u003c\/td\u003e\n\u003ctd\u003e9.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e8.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e8.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e29 BTU\/hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Protection Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Size Capacity\u003c\/td\u003e\n\u003ctd\u003e3.31 mm2 (12 AWG) stranded maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Vibration\u003c\/td\u003e\n\u003ctd\u003e2 g at 10 to 500 Hz per IEC 68-2-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Shock\u003c\/td\u003e\n\u003ctd\u003e15 g peak acceleration, 11 ms pulse width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eSingapore \/ Germany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e0.60 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Dimensions\u003c\/td\u003e\n\u003ctd\u003e102 mm x 102 mm x 76 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConnector \/ Switch Node\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eControlNet Channel A BNC\u003c\/td\u003e\n\u003ctd\u003ePrimary ControlNet Ex network tap connection point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControlNet Channel B BNC\u003c\/td\u003e\n\u003ctd\u003eRedundant ControlNet Ex network tap connection point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemovable Power Terminals\u003c\/td\u003e\n\u003ctd\u003eIntake interface for intrinsically safe input power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNode Address Push Switches\u003c\/td\u003e\n\u003ctd\u003eHardware selector dials for adjusting local network identification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Connector\u003c\/td\u003e\n\u003ctd\u003eMale FlexBus interface routing power and data to adjacent bases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Mounting\u003c\/h3\u003e\n\u003cp\u003eTilt the module at a slight angle and catch the rear mounting clip on the upper edge of a standard 35 mm x 7.5 mm DIN rail. Rotate the unit downward flush with the track until the integrated locking tab clicks into a fully engaged orientation.\u003c\/p\u003e\n\u003ch3\u003eGrounding Requirements\u003c\/h3\u003e\n\u003cp\u003eThis hardware is grounded directly through the structural DIN rail to a dedicated intrinsic safety earth ground. Always utilize zinc-plated yellow-chromate steel DIN rails. Do not use poor conductor paths like aluminum or plastic rails which can degrade or break the safety ground path.\u003c\/p\u003e\n\u003ch3\u003eCommunication Tap Connections\u003c\/h3\u003e\n\u003cp\u003eRemove the factory protective insulator boots from the BNC jacks before seating. Click the primary media drop line firmly into Channel A. Secure the backup cable to Channel B to achieve media redundancy. Torque terminal screw connections to 0.8 to 1 N-m (5 to 7 lb-in).\u003c\/p\u003e\n\u003ch3\u003ePower Constraints\u003c\/h3\u003e\n\u003cp\u003eEnsure this module is driven solely by an approved intrinsically safe external power supply block. Verify that voltage and current limits on the delivery side never exceed the specific technical boundary limits assigned to this unit.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat protocol does this communications component utilize?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt communicates across industrial networks using the specialized ControlNet version 1.5 specification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this hardware module provide automatic path switching if a wire breaks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the dual BNC connection layout supports automatic control routing across the redundant line without stopping system logic.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be mounted directly inside a Zone 1 explosion-prone environment?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the device is engineered with intrinsic safety protections allowing deployment within classified locations when housed in an appropriate metal enclosure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum number of extension units this adapter can control?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module is capable of addressing and powering a maximum backplane stack of eight discrete FLEX Ex modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the network node identifier set on this assembly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe node address is selected by manually clicking the integrated push switches found on the side or front of the housing enclosure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan a standard commercial power source be wired into this device?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, it must receive operational potential exclusively from an approved intrinsically safe power network supply line.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat function do the color LED displays perform on the faceplate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe light indicators provide real-time updates regarding communication line status, local module errors, and power rail parameters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe to configure or disconnect lines while the terminal remains powered?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDo not touch or disconnect field cabling unless the surrounding environment is verified to be non-hazardous or power has been totally isolated.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat specific type of coaxial network cabling is recommended?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is designed to connect to quad-shield RG-6\/U type coaxial media runs such as the factory 1786-RG6 cables.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this device feature conformal coating protections?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the module boards receive a factory conformal coating layer to insulate components against airborne corrosive elements.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695179231595,"sku":"1797-ACNR15","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1797-acnr15-flex-ex-i-o-modules-upakpucb1wv_1e0465aa-b246-4cc2-831f-c3169fa91923.jpg?v=1766114238"},{"product_id":"allen-bradley-1794-ie12-flex-i-o-analog-input-module","title":"Allen-Bradley 1794-IE12 FLEX I\/O Analog Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-IE12\u003c\/strong\u003e is a high-density analog input module engineered to function within the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed hardware platform. This modular component provides twelve single-ended, non-isolated input channels designed to convert analog current or voltage signals from industrial transmitters into digital data for processing. By deploying this module adjacent to machinery on a local DIN rail, industrial facilities can significantly reduce field wiring runs by transmitting data back to a central processor via an appropriate network adapter over \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e, \u003cstrong\u003eControlNet\u003c\/strong\u003e, or \u003cstrong\u003eDeviceNet\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOperating over selectable ranges including \u003cstrong\u003e4 to 20 mA\u003c\/strong\u003e and \u003cstrong\u003e0 to 10V DC\u003c\/strong\u003e, the unit incorporates successive-approximation analog-to-digital converters to ensure precise measurement tracking. The \u003cstrong\u003e1794-IE12\u003c\/strong\u003e plugs directly into a compatible terminal base unit, which manages the field-side wiring and provides the internal backplane connection. This layout is standard in continuous processing applications, water treatment automation, HVAC infrastructure control, and complex power generation monitoring where multi-channel instrumentation density is critical.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTwelve single-ended analog input channels housed within a single small-footprint assembly.\u003c\/li\u003e\n\u003cli\u003eUser-configurable input profiles for either current loop or voltage source instrumentation.\u003c\/li\u003e\n\u003cli\u003eRemoval and Insertion Under Power (RIUP) allowing hardware maintenance without shutting down the system bus.\u003c\/li\u003e\n\u003cli\u003eLED indicators providing visible confirmation of module operational status and internal bus health.\u003c\/li\u003e\n\u003cli\u003eHigh-density termination matrix optimizing control cabinet enclosure layout spacing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-tank liquid level and volumetric measurement monitoring.\u003c\/li\u003e\n\u003cli\u003eIndustrial furnace and boiler thermal tracking networks.\u003c\/li\u003e\n\u003cli\u003eMainline distribution header hydraulic pressure logging.\u003c\/li\u003e\n\u003cli\u003eContinuous emissions monitoring systems (CEMS) in utility plants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-IE12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eHigh-Density Analog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e12 Channels, Single-Ended, Non-Isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Ranges\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA, 0 to 20 mA, +\/-10V DC, 0 to 10V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e12-bit unipolar, 11-bit plus sign bipolar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Voltage)\u003c\/td\u003e\n\u003ctd\u003e100 kilohms minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Current)\u003c\/td\u003e\n\u003ctd\u003e238 ohms nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Draw\u003c\/td\u003e\n\u003ctd\u003e80 mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal DC Power Voltage\u003c\/td\u003e\n\u003ctd\u003e24V DC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal DC Power Range\u003c\/td\u003e\n\u003ctd\u003e10V DC to 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e0.09 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Dimensions\u003c\/td\u003e\n\u003ctd\u003e46 mm x 94 mm x 53 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Connection Block\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput 0 to Input 11\u003c\/td\u003e\n\u003ctd\u003eSingle-Ended Positive Signal Input Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Return\u003c\/td\u003e\n\u003ctd\u003eShared Analog Common Return Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e+V (External Power)\u003c\/td\u003e\n\u003ctd\u003e24V DC External Operational Source Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOM (External Power)\u003c\/td\u003e\n\u003ctd\u003eDC Power Return Reference Point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003eHook the top portion of the module structural housing into the upper ridge of standard 35 mm DIN mounting tracking. Pivot the lower portion of the enclosure downward firmly until the integrated locking clips engage onto the lower metal rail lip.\u003c\/p\u003e\n\u003ch3\u003eTerminal Base Seating\u003c\/h3\u003e\n\u003cp\u003eAlign the guide keys located along the bottom edge of the hardware module with the receiving channels on the pre-wired terminal base unit. Slide the unit directly downward into the base structural framework until the retention latches snap shut.\u003c\/p\u003e\n\u003ch3\u003eShielding and Grounding\u003c\/h3\u003e\n\u003cp\u003eRun shielded twisted-pair cables for all analog input lines. Ground the cable shield drain wires exclusively at the dedicated ground bus bars on the terminal base unit to avoid creating earth ground loops across the field environment.\u003c\/p\u003e\n\u003ch3\u003eCable Routing\u003c\/h3\u003e\n\u003cp\u003eIsolate all analog instrumentation signal conduits from high-power AC mains cabling, variable frequency drive motor leads, and heavy inductive switching circuits to mitigate electromotive field coupling and signal noise.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat types of signals can this module accept from field instruments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt can be software-configured to accept either direct current ranges or standard analog voltage potential fields.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module provide electrical isolation between individual input channels?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the twelve channels are single-ended and reference a shared internal common signal return path.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan an engineer swap this unit while the rest of the FLEX I\/O rail is active?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the module supports removal and insertion under power, allowing field service without interrupting communication to adjacent modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if a field signal wire breaks or drops below 4 mA?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe processing register sets an under-range bit corresponding to that specific input channel to alert the logic controller of a fault.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs an external power supply required to drive this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it requires an external 24V DC power feed wired directly through the terminal base to power the analog conversion circuitry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich terminal base structures are recommended for this component?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit operates with multi-terminal block bases including the 1794-TB3G or 1794-TB3GS configurations which handle the high-density signal count.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the digital conversion resolution of the incoming analog parameters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module utilizes a 12-bit analog-to-digital converter architecture to represent field values within the system registers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this device measure negative voltage ranges from sensors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it can be configured to process bipolar voltage inputs across a negative ten to positive ten volt range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the specific signal range for a channel programmed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe engineering ranges are defined by writing specific configuration words to the module output registers via the PLC software environment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require field calibration before plant startup?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module is calibrated during factory production, but zero and span configurations can be monitored and tweaked electronically through the host system.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695180476779,"sku":"1794-IE12","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-ie12-analog-input-module-1gcwjr503rw_fa369080-b631-4f62-878e-d398bd793af8.jpg?v=1766114267"},{"product_id":"allen-bradley-1794-ob16-flex-i-o-digital-output-module","title":"Allen-Bradley 1797-IE8 FLEX Ex Intrinsically Safe Analog Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-OB16\u003c\/strong\u003e is a high-density digital output module functioning within the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed architecture. This hardware component interfaces directly with standard terminal bases to supply twenty-four volt direct current (\u003cstrong\u003e24V DC\u003c\/strong\u003e) sourcing signals to various field actuators, indicators, and interposing relays. By converting electronic logic commands from a central processing unit into physical switching operations, the device enables modular extension of control topologies away from the main chassis over industrial networks such as \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e, \u003cstrong\u003eControlNet\u003c\/strong\u003e, or \u003cstrong\u003eDeviceNet\u003c\/strong\u003e through the addition of an appropriate network adapter.\u003c\/p\u003e\n\u003cp\u003eThis module houses sixteen independent, non-isolated output channels configured in a sourcing topology, drawing operational current directly from an external power bus via the terminal base assembly. The \u003cstrong\u003e1794-OB16\u003c\/strong\u003e features internal diagnostic indicators that provide local troubleshooting data to electrical maintenance teams, streamlining verification during line installation and preventive upkeep within continuous process plants, material handling facilities, and automotive manufacturing lines.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSixteen discrete output points arranged in a compact sourcing arrangement.\u003c\/li\u003e\n\u003cli\u003eDirect insertion into compatible terminal base units for fast, toolless hot-swapping during active operations.\u003c\/li\u003e\n\u003cli\u003eIndividual light-emitting diode indicators mapping the status of each discrete channel for fast diagnostics.\u003c\/li\u003e\n\u003cli\u003eFlexible system engineering through native compatibility with diverse communication adapters.\u003c\/li\u003e\n\u003cli\u003eSolid-state switching mechanics eliminating physical contact wear for expanded life cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSolvent pump and pneumatic valve actuation systems.\u003c\/li\u003e\n\u003cli\u003eControl panel indication lights and stacked signaling towers.\u003c\/li\u003e\n\u003cli\u003eInterposing relay driver circuits inside power distribution boards.\u003c\/li\u003e\n\u003cli\u003ePackaging line sorting gate activation switches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-OB16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital Sourcing Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e16, Non-isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal On-State Voltage\u003c\/td\u003e\n\u003ctd\u003e24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10V DC to 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Current Rating\u003c\/td\u003e\n\u003ctd\u003e0.5 A per channel maximum (8.0 A per module maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Current Limit\u003c\/td\u003e\n\u003ctd\u003e2 A for 50 ms, repeatable every 2 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e4.3 W maximum at 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Draw\u003c\/td\u003e\n\u003ctd\u003e80 mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Leakage Current\u003c\/td\u003e\n\u003ctd\u003e0.5 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e0.08 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Dimensions\u003c\/td\u003e\n\u003ctd\u003e46 mm x 94 mm x 53 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Base Pin (Typical 1794-TB3)\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin 0 to Pin 15\u003c\/td\u003e\n\u003ctd\u003eOutput Channels 0 through 15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003ctd\u003e24V DC Sourcing Power Supply Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOM\u003c\/td\u003e\n\u003ctd\u003eDC Common Return Path\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003eHook the top of the unit under the upper edge of the standard 35 mm DIN rail. Rotate the chassis downward until the integrated locking mechanism engages securely with the lower lip of the tracking rail.\u003c\/p\u003e\n\u003ch3\u003eTerminal Base Compatibility\u003c\/h3\u003e\n\u003cp\u003eAlign the module side grooves with the guide rails on the pre-installed terminal base unit, such as a 1794-TB2 or 1794-TB3. Push down firmly until the module is fully seated and the retention latch snaps into place.\u003c\/p\u003e\n\u003ch3\u003eCable Routing\u003c\/h3\u003e\n\u003cp\u003eKeep all discrete output wire channels physically separated from high-voltage AC lines and motor drive supply cords. Utilize bundled wiring trays to reduce cross-talk and ambient electromagnetic disturbance across the signal conductors.\u003c\/p\u003e\n\u003ch3\u003ePower Termination\u003c\/h3\u003e\n\u003cp\u003eVerify that external 24V DC power leads are securely screwed into the corresponding bus links on the terminal base block. Disconnect the primary line breakers before running terminal terminations to prevent unintended component short-circuiting.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the switching orientation of this specific module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module operates using a sourcing design, delivering 24V DC from the supply bus to the wired load device when an output point transitions to the active high state.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this device feature individual isolation barriers between channels?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the sixteen points are non-isolated and utilize a shared internal power and common reference rail across the module circuit board.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan a damaged unit be swapped while the terminal base remains powered?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the hardware structure allows for removal and replacement under power, but field-side actuator power should be isolated to prevent accidental equipment motion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat terminal bases are recommended for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit fits onto standard modules including the 1794-TB2, 1794-TB3, 1794-TBN, and 1794-TB3S options depending on the required wiring termination layout.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do the front panel yellow LED lights represent?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach numbered indicator corresponds to an output point and illuminates when that channel receives a logical command to turn on.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs there built-in overcurrent or short-circuit protection for each channel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module relies on external fusing or the electrical characteristics of the sourcing circuitry to prevent overload damage if an external short occurs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current capacity per point if all channels are active?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach channel can supply up to 0.5 A continuously, provided the total cumulative module current draw does not exceed the maximum aggregate limit of 8.0 A.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the module communicate back to a main ControlLogix controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt transfers data across the backplane to a network adapter module installed on the leftmost side of the local DIN rail cluster.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the minimum operating voltage required for stable output switching?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe reliable electrical operating window requires a minimum input potential of 10V DC to drive the internal solid-state output circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this purchase include the terminal block base unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, this part number represents the electronic plug-in module only, requiring the terminal base to be sourced separately.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695181885803,"sku":"1794-OB16","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-ob16-flex-i-o-digital-dc-output-modules-4u4e3ur2yr1_e1e675af-dd61-47fb-985f-c58f8aa70e7c.jpg?v=1766114320"},{"product_id":"allen-bradley-1797-tb3-flex-ex-terminal-base-units","title":"Allen-Bradley 1797-TB3 FLEX Ex Terminal Base Units","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1797-TB3\u003c\/strong\u003e is an intrinsically safe mounting and wiring component functioning within the \u003cstrong\u003eFLEX Ex\u003c\/strong\u003e distributed input\/output platform. This structural device provides the physical termination points for field instrumentation cabling while anchoring individual electronic application modules to a unified backplane cluster. By containing terminal termination paths away from active logic chips, the assembly allows engineers to run physical electrical connections directly within classified process zones without exposing the primary system bus to signal faults.\u003c\/p\u003e\n\u003cp\u003eEquipped with three-tier screw-clamp termination blocks, the unit distributes power, common grounding, and discrete or analog field lines through independent internal channels. The \u003cstrong\u003e1797-TB3\u003c\/strong\u003e links structurally to adjacent base assemblies via an integrated male\/female FlexBus backplane connector, passing data and intrinsically safe power from primary power supplies through the complete multi-module array. It is utilized in heavy extraction and treatment environments—such as marine gas rings, onshore wellheads, chemical storage systems, and grain processing silos—requiring robust mechanical foundations that limit ignition sparks.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThree-tier screw terminal design separating signal lines, common reference points, and power paths.\u003c\/li\u003e\n\u003cli\u003eIntegrated structural alignment guides supporting modular replacement of application hardware.\u003c\/li\u003e\n\u003cli\u003ePass-through internal FlexBus connection mechanism for clean structural scaling on a single rail.\u003c\/li\u003e\n\u003cli\u003eRugged housing geometry intended for high-vibration industrial installations.\u003c\/li\u003e\n\u003cli\u003eFront-accessible test points simplifying multimeter verification during plant commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExplosive dust and grain elevator storage management systems.\u003c\/li\u003e\n\u003cli\u003eOffshore natural gas platform processing manifolds.\u003c\/li\u003e\n\u003cli\u003eFuel tank farm telemetry and distribution controls.\u003c\/li\u003e\n\u003cli\u003eHazardous chemical blending and batching facilities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX Ex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1797-TB3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Type\u003c\/td\u003e\n\u003ctd\u003eIntrinsically Safe Terminal Base Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTermination Type\u003c\/td\u003e\n\u003ctd\u003e3-Tier Screw Clamp Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Terminal Points\u003c\/td\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Gauge Capacity\u003c\/td\u003e\n\u003ctd\u003e0.34 mm2 to 2.5 mm2 (22 to 12 AWG) solid or stranded copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e32V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current Rating\u003c\/td\u003e\n\u003ctd\u003e2 A per connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Barrier\u003c\/td\u003e\n\u003ctd\u003eInternal galvanic and physical safety separations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e0.25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Dimensions\u003c\/td\u003e\n\u003ctd\u003e94 mm x 94 mm x 69 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Row Location\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eTypical Assignment Block\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow A (Top Tier)\u003c\/td\u003e\n\u003ctd\u003eInput\/Output Signal 0 through 7 Wiring Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow B (Middle Tier)\u003c\/td\u003e\n\u003ctd\u003eSourcing Power Distribution Points (Current Limited)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow C (Bottom Tier)\u003c\/td\u003e\n\u003ctd\u003eCommon Return Reference Nodes and Chassis Ground Links\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003ePosition the top retention hooks of the assembly over the upper tracking edge of a standard 35 mm DIN rail. Tilt the base downward until the lower metallic tension latch clicks firmly into place onto the bottom track rail.\u003c\/p\u003e\n\u003ch3\u003eBackplane Interconnection\u003c\/h3\u003e\n\u003cp\u003eSlide successive base modules laterally along the DIN rail until the female FlexBus socket of the new unit mates flush with the male pins of the preceding unit. Verify the side-locking tabs engage fully to ensure continuous power path transfer.\u003c\/p\u003e\n\u003ch3\u003eWire Termination\u003c\/h3\u003e\n\u003cp\u003eStrip the insulation on incoming signal leads back approximately 7 mm (0.28 inches). Insert the conductor into the appropriate screw clamp terminal and torque the clamping screw to 0.56 N-m (5.0 lb-in) to prevent loose wire arcing.\u003c\/p\u003e\n\u003ch3\u003eHazardous Area Precautions\u003c\/h3\u003e\n\u003cp\u003eConfirm all connected instrumentation satisfies intrinsically safe energy parameter limits matching the module inserted into the base. Ensure the local enclosure maintains a minimum dust and water ingress protection level appropriate for the target installation zone.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary function of this structural component?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt serves as the physical mounting foundation and wiring termination interface for operational electronic modules within hazardous zones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be utilized with standard non-hazardous 1794 series modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, this unit is keyed and engineered exclusively for use with intrinsically safe 1797 series hardware assemblies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size wire can be terminated into the screw terminals?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe terminal blocks accept solid or stranded copper wires ranging from 22 AWG up to 12 AWG.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe to slide bases apart while the system power supply is turned on?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, isolate input power from the main source before separating base units to prevent interrupting the internal backplane bus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this base include an integrated communication adapter link?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, it is a passive wiring substrate that relies on a separate network adapter module placed at the front of the rail cluster.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are the field signals routed into the attached control module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe electrical pins on the back of the active module plug into the receptacle matrix built directly into the center of the base.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre separate grounding terminal blocks required when using this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe bottom tier provides dedicated chassis ground points designed to link instrument shielding without extra external terminal blocks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum torque specification for the termination screws?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTighten all wire clamp screws to a maximum of 0.56 N-m or 5.0 lb-in to ensure a secure low-resistance contact.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan an electronic module be replaced while the field wiring remains attached?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the terminal base design allows the processing module to be unplugged without disturbing any of the field termination wires.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many signal connection points are available in total on the unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit features thirty-six distinct termination screws divided evenly across three separate horizontal rows.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695182147947,"sku":"1797-TB3","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1797-tb3-flex-ex-i-o-terminal-base-module-plc-module-oezmllmcje5_92224a65-04ae-4c6c-ae38-a7c922fe2bf8.jpg?v=1766114330"},{"product_id":"allen-bradley-1794-ib16d-flex-i-o-digital-sinking-input-module-with-diagnostics","title":"Allen-Bradley 1794-IB16D FLEX I\/O Digital Sinking Input Module with Diagnostics","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-IB16D\u003c\/strong\u003e is a high-density discrete hardware component engineered for the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed network terminal platform. This 24V DC digital input module is designed to monitor and process binary field conditions while executing comprehensive electronic point-level diagnostics. Operating within a sinking current configuration, the internal circuits route electricity from sourcing field-side instrumentation through its sensing nodes to a centralized common return rail, establishing precise logic state classification and fault isolation across industrial networks.\u003c\/p\u003e\n\u003cp\u003eEquipped with sixteen sinking input channels, the device incorporates advanced electronic diagnostics capable of identifying line faults including open wires, channel short-circuits, and reverse polarity conditions of the external sensor power supply. When an active fault line criteria is met, the \u003cstrong\u003e1794-IB16D\u003c\/strong\u003e logs the corresponding error bit into the system memory registers and illuminates a dedicated front-panel indicators array, notifying the centralized master controller without halting adjacent channel operation. The module interfaces over \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e, \u003cstrong\u003eControlNet\u003c\/strong\u003e, or \u003cstrong\u003eDeviceNet\u003c\/strong\u003e backplanes, making it typical in critical process installations—such as continuous petrochemical batching, automated automotive assembly lines, municipal water pumping facilities, and packaging automation networks—where immediate sensor line visibility is mandatory to maintain plant safety and uptime.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSixteen discrete sinking input channels featuring comprehensive point-level electronic diagnostics.\u003c\/li\u003e\n\u003cli\u003eReal-time automated detection of open-wire faults, field short-circuits, and reversed external supply polarity.\u003c\/li\u003e\n\u003cli\u003eStatus reporting parameters that map diagnostic fault bits straight to the controller processor.\u003c\/li\u003e\n\u003cli\u003eSupport for Removal and Insertion Under Power (RIUP) allowing live service without bus downtime.\u003c\/li\u003e\n\u003cli\u003eIndividual front-facing LED matrix providing visual state reporting for both signal logic and fault codes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProcess instrumentation loop tracking with continuous sensor wire path monitoring.\u003c\/li\u003e\n\u003cli\u003eAutomated material handling conveyor systems requiring rapid short-circuit fault identification.\u003c\/li\u003e\n\u003cli\u003eCritical safety interlock switches, emergency gate tracks, and valve position feedback verification.\u003c\/li\u003e\n\u003cli\u003ePetrochemical blending facility sensors deployed in remote, unconditioned electrical panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-IB16D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital Sinking Input Module with Diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16 Channels, Sinking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10V DC to 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Current Minimum\u003c\/td\u003e\n\u003ctd\u003e2.0 mA at 10V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Current Nominal\u003c\/td\u003e\n\u003ctd\u003e8.2 mA at 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Current Maximum\u003c\/td\u003e\n\u003ctd\u003e12.1 mA at 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Voltage Maximum\u003c\/td\u003e\n\u003ctd\u003e5.0V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Current Maximum\u003c\/td\u003e\n\u003ctd\u003e1.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance Maximum\u003c\/td\u003e\n\u003ctd\u003e3.1 kilohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Power Voltage Drop\u003c\/td\u003e\n\u003ctd\u003e2.2V DC maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Draw\u003c\/td\u003e\n\u003ctd\u003e30 mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e50V continuous, tested at 850V DC for 1 second between user power and system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation Maximum\u003c\/td\u003e\n\u003ctd\u003e4.5 W at 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation Maximum\u003c\/td\u003e\n\u003ctd\u003e15.4 BTU\/hour at 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.10 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e46 mm x 94 mm x 53 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Base Receptacle Node\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Signal Path Allocation\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow A: Terminals 0 to 15\u003c\/td\u003e\n\u003ctd\u003eSinking Input Signal Wire Connections (IN00 to IN15)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow B: Terminals 17 to 32\u003c\/td\u003e\n\u003ctd\u003eSensor Power Outward Distribution Connections (Sensor Power 0 to 15)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow C: Terminals 36, 38, 40, 42, 44, 46, 48, 50\u003c\/td\u003e\n\u003ctd\u003eCommon DC Return Reference Nodes (COM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow C: Terminals 43, 45, 47, 49\u003c\/td\u003e\n\u003ctd\u003eExternal +V2 DC Diagnostic Sensor Power Input Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Mounting\u003c\/h3\u003e\n\u003cp\u003eEngage the upper mechanical retention hooks on the back panel of the module housing onto the upper edge of standard zinc-plated 35 mm DIN tracking. Press down and pivot the bottom portion of the enclosure inward until the spring-activated steel latch assembly snaps securely around the lower rail track lip.\u003c\/p\u003e\n\u003ch3\u003eTerminal Base Compatibility and Seating\u003c\/h3\u003e\n\u003cp\u003eMount this module exclusively on a pre-installed \u003cstrong\u003e1794-TB32\u003c\/strong\u003e or \u003cstrong\u003e1794-TB32S\u003c\/strong\u003e terminal base unit. Rotate the terminal base keyswitch clockwise to position 2 before attempting insertion. Align the physical alignment bar on the bottom face of the module with the guide groove on the base, and press firmly until the side latches seat flush.\u003c\/p\u003e\n\u003ch3\u003eField Sensor Wiring\u003c\/h3\u003e\n\u003cp\u003eConnect discrete input signals to Row A terminals 0 through 15. Connect matching sensor power loops to Row B terminals 17 through 32. For 2-wire field devices, use the designated input and sensor power terminals; for 3-wire field devices, connect the device ground lead to the Row C common nodes. Do not connect signals to terminals 16 or 33.\u003c\/p\u003e\n\u003ch3\u003eExternal Diagnostic Power Loop\u003c\/h3\u003e\n\u003cp\u003eSupply external 24V DC operational power into the +V2 terminals (43, 45, 47, or 49) on Row C. This separate power path is required to drive the point-level monitoring electronics and execute continuous open-wire and sensor short-circuit diagnostics.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat distinguishes this diagnostic module from the standard 1794-IB16 model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis module features electronic diagnostic loops that automatically detect open wires, field short-circuits, and external sensor supply reverse polarity conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat terminal base variants must be used with this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module requires the high-density layout provided by the 1794-TB32 or 1794-TB32S terminal base units.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the module signal that a sensor wire has been severed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt triggers a specific channel error bit in the logic register and turns on the front-panel red diagnostic status indicator for that individual channel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of switching configuration is supported by the input points?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit features a sinking configuration, meaning it accepts current flowing from external sourcing field instrumentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this module be hot-swapped during central system run cycles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it supports removal and insertion under power, allowing live module swaps without halting network communications on the local rail segment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat voltage threshold constitutes a logical off-state for an input channel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAn input channel reads as an off-state condition when the incoming voltage drops below 5.0V DC or the loop current drops below 1.5 mA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs separate external power required to enable the channel diagnostic loops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, external 24V DC must be connected to the +V2 terminal paths on Row C to power the onboard field diagnostics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the function of the Row B terminals on the 1794-TB32 base?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThey provide individual diagnostic sensor power terminals for each corresponding input channel, allowing the module to monitor current draw per point.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit process high-voltage alternating current field signals?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, this module is rated exclusively for direct current applications operating inside a 10V DC to 31.2V DC window.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are the filter times for the inputs adjusted to filter out switch chatter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe digital filter times can be configured via programming software to match application signal response needs.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695186014571,"sku":"1794-IB16D","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-ib16d-flex-16-point-advanced-digital-input-module-403hgkfewdt_6626e74b-fc35-4872-b7bd-0f84742b5807.jpg?v=1766114463"},{"product_id":"allen-bradley-1797-ob4d-flex-ex-i-o-24v-dc-4-non-isolated-source-output-module","title":"Allen-Bradley 1797-OB4D FLEX Ex I\/O 24V DC 4 Non-Isolated Source Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAllen-Bradley 1797-OB4D\u003c\/strong\u003e is a high-performance, intrinsically safe digital output module designed for hazardous area industrial environments. As part of the \u003cstrong\u003eFLEX Ex I\/O\u003c\/strong\u003e product family, this module provides 4 non-isolated, sourcing outputs specifically engineered to operate digital field devices such as valves, audible alarms, and solenoids.\u003c\/p\u003e\n\u003cp\u003eThe module features an integrated \u003cstrong\u003eFlexBus\u003c\/strong\u003e communication interface which communicates seamlessly through compatible adapters like the ControlNet Ex adapter (1797-ACNR15) to achieve a robust, two-tier fault state mechanism across the backplane. This product is supplied as open-type equipment and must be installed on a \u003cstrong\u003e1797-TB3\u003c\/strong\u003e or \u003cstrong\u003e1797-TB3S\u003c\/strong\u003e intrinsically safe terminal base unit inside a suitable enclosure , ensuring maximum system safety and environmental isolation.\u003c\/p\u003e\n\u003cp\u003eThe electrical architecture incorporates diagnostic indicators and sophisticated software configuration profiles accessible via RSLogix 5000. Every sourcing channel is electrically connected to one another and includes advanced electronic protection alongside selectable alarm filtering , making it an ideal choice for petro-chemical, chemical, gas, and automated process industries operating in Zone 1, Zone 2, or Zone 22 classifications.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt with 4 non-isolated, sourcing intrinsically safe digital outputs.\u003c\/li\u003e\n\u003cli\u003eDesigned for hot-swapping, allowing safe removal and insertion under power in nonhazardous conditions.\u003c\/li\u003e\n\u003cli\u003eComprehensive individual channel diagnostic capabilities including wire-off fault and overload detection.\u003c\/li\u003e\n\u003cli\u003eIntegrated software-configurable 100 Hz (10 ms) filter and adjustable alarm filter time constants (0.25 ms to 32 ms).\u003c\/li\u003e\n\u003cli\u003eSelectable output fault behaviors allowing channels to either reset to zero or hold the last valid state.\u003c\/li\u003e\n\u003cli\u003eClear physical diagnostics featuring 4 yellow status indicators, 4 red fault indicators, and 1 green module power indicator.\u003c\/li\u003e\n\u003cli\u003eBuilt-in electronic protection covering lead break, overload conditions, and short circuits.\u003c\/li\u003e\n\u003cli\u003eSolid-state design utilizing standard FlexBus backplane connectivity with negligible internal inductance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAutomated control of intrinsically safe pneumatic and hydraulic control valves.\u003c\/li\u003e\n\u003cli\u003eControl and triggering of field-mounted audible alarms and visual beacons in explosive areas.\u003c\/li\u003e\n\u003cli\u003eActuation of low-power solenoids and relay coils within hazardous gas or dust atmospheres.\u003c\/li\u003e\n\u003cli\u003eProcess automation deployment in chemical processing plants, oil refineries, and gas upstream facilities.\u003c\/li\u003e\n\u003cli\u003eSafe signal handling in grain handling or powder processing environments matching Zone 22 dust criteria.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1797-0B4D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFLEX Ex I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4, nonisolated, sourcing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIS Output Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEx ia IIB\/IIC T4, AEx ia IIC T4, Class I, II, III Division 1 Groups A, B, C, D, E, F, G T4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIS Module Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEx ib IIB\/IIC T4, AEx ib IIC T4, Class I Division 1 Groups A...D T4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30...5000 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFault Detection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFault bits in data table and LED (per channel) blinking red (1 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectronic Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLead break, overload, short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Output Delay Times (OFF to ON)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1.2 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Output Delay Times (ON to OFF)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1.2 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 yellow status indicators, 4 red fault indicators, 1 green module power indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput (Intrinsically Safe) Parameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUi \u0026lt; 5.8V DC, Ii \u0026lt; 400 mA, Li = Negligible, Ci \u0026lt; 1.35 uF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+V, -V Intrinsically safe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Parameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUi \u0026lt; 9.5V DC, Ii \u0026lt; 1 A, Li = Negligible, Ci = Negligible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Field-Side Power Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17.07 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1797-TB3 or 1797-TB3S Terminal base unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConductors Wire Size, Max\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 mm2 (12 gauge) stranded with 1.2 mm (3\/64 in.) insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKeyswitch Position\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePosition 7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20...+70 degC (-4...+158 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40...+85 degC (-40...+185 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5...95% noncondensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating \/ Nonoperating Shock\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTested to 15 g peak acceleration, 11(+1) ms pulse width\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTested 2 g @ 10...500 Hz per IEC68-2-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e46 x 94 x 75 mm (1.8 x 3.7 x 2.95 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 200 g (7.05 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Pin\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow A - Terminal 0\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput 0 Channel (+) Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow A - Terminal 1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput 0 Channel (-) Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow A - Terminal 4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput 1 Channel (+) Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow A - Terminal 5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput 1 Channel (-) Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow A - Terminal 8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput 2 Channel (+) Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow A - Terminal 9\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput 2 Channel (-) Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow A - Terminal 12\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput 3 Channel (+) Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow A - Terminal 13\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutput 3 Channel (-) Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow C - Terminal 34\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+V DC Intrinsically Safe Power Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow C - Terminal 35\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-V DC Intrinsically Safe Power Common Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow C - Terminal 50\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+V DC Power Daisy-Chain Extension Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRow C - Terminal 51\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-V DC Power Common Daisy-Chain Extension Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eNote: Terminals 2, 3, 6, 7, 10, 11, 14, 15, 17 to 32, 36, 37, 38, 39, 46, 47, 48, and 49 are unused and no connections are permitted. Do not use unused terminals as supporting terminals to avoid system damage.\u003c\/p\u003e\n\u003ch3\u003eInstallationGuidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Specifications\u003c\/strong\u003e: The module must be installed within a suitably rated metal enclosure when used in Zone 1 to protect it from environmental exposure, as the module itself holds an IP20 factor rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZone 22 Cabinet Selection\u003c\/strong\u003e: For installation within Zone 22 dust environments, specific certified cabinet models must be utilized: IVK-ISRPI-V16LC, IVK-ISRPI-V8HYW, or IVK-ISRPI-V8LC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyswitch Alignment\u003c\/strong\u003e: Before mounting the module, rotate the keyswitch on the terminal base unit clockwise to position 7. Do not alter this keyswitch setting once wiring configuration is finished.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexBus Setup\u003c\/strong\u003e: Ensure that the FlexBus connector is pushed completely to the left toward the neighboring base unit or adapter before trying to insert the module; execution is blocked unless fully extended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Alignment and Seating\u003c\/strong\u003e: Verify all bottom connection pins are straight, align the module's alignment bar with the alignment groove on the base, and press down firmly until the latching mechanism securely locks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntrinsically Safe Separation\u003c\/strong\u003e: Only join intrinsically safe terminal bases to other intrinsically safe system modules\/adapters to secure backplane integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding and Grounding\u003c\/strong\u003e: All I\/O wiring must use high-quality shielded wire. All wire shields must be terminated strictly external to the module using dedicated bus bars or shield-terminating feed-through points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrostatic Prevention\u003c\/strong\u003e: The entire system must be protected against electrostatic charges. Install a highly visible warning sign in immediate proximity stating: \"WARNING Avoid electrostatic charging\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Restrictions\u003c\/strong\u003e: The system must be powered exclusively by an intrinsically safe power supply. Never allow nonintrinsically safe signals to be applied to the module, as doing so permanently invalidates its intrinsic safety status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLive Insertion Rules\u003c\/strong\u003e: Although the module supports removal and insertion under power, an electrical arc can occur if the underlying terminal base is unseated or wired while field power is live, posing an explosion risk in hazardous areas. Ensure power is fully isolated or that the environment is verified nonhazardous before handling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eComplianceandCertifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCENELEC\u003c\/strong\u003e: II (1) 2G Ex ib[ia] IIC T4, II (1) D [Ex iaD]\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL, C-UL\u003c\/strong\u003e: Certified for Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III Hazardous Locations; Class I, Zone 1, AEx ib[ia] IIC T4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFM\u003c\/strong\u003e: Intrinsically Safe Class I, Div 1, Groups A, B, C, D, T4; Associated Apparatus with intrinsically safe connections Class I, II, III, Div 1, Groups A-G; Class I, Zone 1, AEx ib[ia] IIC T4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eINMETRO\u003c\/strong\u003e: BR-Ex ia\/ib BB\/IIC T4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIECEx\u003c\/strong\u003e: [Zone 0] Ex ib[ia] IIC T4 [Ex iaD] (Reference Certificate: IECEx BVS 09.0024X)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eATEX\u003c\/strong\u003e: Reference Certificate Number DMT 02 ATEX E 040 X complying with EN 60079-0, EN 60079-11, and EN 61241 series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE Mark Directives\u003c\/strong\u003e: Approved for installation within the EU and EEA regions under EMC Directive 2014\/30\/EU applying EN 61000-6-4:2007, EN 61000-6-2:2005, and EN 61326-1:2013\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat terminal bases are compatible with the 1797-OB4D module?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eThe module must be used exclusively with the 1797-TB3 or 1797-TB3S intrinsically safe terminal base units.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does a solid red status LED indicate on the front panel?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eA solid red indicator means the module did not pass its power-up check routine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this module be repaired if a single channel fails?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eNo, this module is not field-repairable. Attempting to open the enclosure voids the factory warranty and its intrinsic safety certifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the default operation state of the outputs upon initial power-up?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eAt system power-up, the Output Enable bit is default set to 0, which keeps all outputs forced off until initialized to 1 via the application program.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat range of field load resistance is supported for normal operation?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eThe normal load range per channel is defined as 30 to 5000 Ohm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the module signal a wire-off or channel overload fault?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eFaults are signaled via the internal data table fault bits and by the corresponding channel LED flashing red at a 1 Hz frequency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe to use this module with standard non-intrinsically safe signals?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e No, you must never apply non-intrinsically safe signals. The module cannot be reused in an intrinsically safe environment once exposed to non-intrinsically safe signals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if I wire field devices to the unused terminals of the base?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eUsing unused terminals as supporting terminals can cause severe physical damage to the module, unintended system operations, or both.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum signal propagation delay time for channel state changes?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eThe maximum output delay time for both OFF-to-ON and ON-to-OFF transitions is less than 1.2 ms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the output channels isolated from each other?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eNo, the channels in this module are non-isolated and are electrically connected to each other.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this module be inserted into a live terminal base while the backplane is powered?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e Yes, it is designed for hot-swapping, but field-side power must be removed or the area verified nonhazardous to avoid an explosion from an electrical arc.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the Latch Alarms configuration parameter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e It dictates whether a wire-off or overload fault bit remains locked until manually cleared by a Reset Alarms transition, ensuring short-duration faults are captured.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat threshold guarantees a wire-off fault is reported?\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003eA wire-off condition is guaranteed to be flagged and reported for field loads greater than 75 kOhm, regardless of output state.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are the fault alarm filters configured in software?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Alarm Filter bits allow setting the time constant across a range of binary options: 0.25 ms, 0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms, 16 ms, or 32 ms.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695186276715,"sku":"1797-OB4D","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1797-ob4d-flex-ex-output-module-ypckzr4pmqv_a421cd76-3e00-41b5-8d36-58b761919b51.jpg?v=1766114473"},{"product_id":"allen-bradley-1797-ie8-analog-input-module","title":"Allen-Bradley 1797-IE8 FLEX Ex Intrinsically Safe Analog Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1797-IE8\u003c\/strong\u003e is an intrinsically safe high-density analog input module designed for direct deployment within hazardous environments as part of the \u003cstrong\u003eFLEX Ex\u003c\/strong\u003e distributed architecture. This component processes standard instrumentation signals from up to eight field transmitters, converting current waveforms into digitized data registers across an isolated internal backplane interface. By maintaining low-energy electrical circuits, the device isolates field-side power configurations from triggering combustion in atmospheres containing flammable gases, vapors, or dust.\u003c\/p\u003e\n\u003cp\u003eThis module houses eight non-isolated analog input channels configured to interface with two-wire or four-wire transmitters over a \u003cstrong\u003e4 to 20 mA\u003c\/strong\u003e signaling range. The \u003cstrong\u003e1797-IE8\u003c\/strong\u003e mounts securely onto a dedicated \u003cstrong\u003eFLEX Ex\u003c\/strong\u003e terminal base, enabling digital communication with host programmable logic controllers via specialized intrinsically safe network adapters supporting \u003cstrong\u003eControlNet Ex\u003c\/strong\u003e protocol configurations. It is commonly implemented in petrochemical processing, off-shore drilling, refinery complexes, and specialty chemical synthesis plants requiring strict explosion-proof engineering compliance.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEight discrete analog channels engineered for intrinsically safe field connections.\u003c\/li\u003e\n\u003cli\u003eDirect processing of industrial standard 4 to 20 mA current loops.\u003c\/li\u003e\n\u003cli\u003eModular plug-in design for efficient terminal base integration and maintenance.\u003c\/li\u003e\n\u003cli\u003eInternal galvanic isolation barriers separating field-side instrumentation from control infrastructure.\u003c\/li\u003e\n\u003cli\u003eIntegrated diagnostic capability to identify open-circuit or short-circuit signal faults.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePetroleum refinery distillation column pressure tracking.\u003c\/li\u003e\n\u003cli\u003eOffshore oil platform combustible gas monitoring systems.\u003c\/li\u003e\n\u003cli\u003eChemical storage tank continuous level measurement.\u003c\/li\u003e\n\u003cli\u003ePharmaceutical solvent batching process temperature control loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable style=\"width: 100%; height: 391.876px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 36.3769%; height: 19.5938px;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 60.2898%; height: 19.5938px;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003eFLEX Ex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e1797-IE8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eModule Type\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003eIntrinsically Safe Analog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e8 Channels, Non-isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eSignal Range\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e4 to 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e16 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eInput Impedance\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e200 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 39.1875px;\"\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 39.1875px;\"\u003eGalvanic isolation between field side and FlexBus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e6.5 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 39.1875px;\"\u003eIntrinsically Safe Output Type\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 39.1875px;\"\u003eCurrent-limited source parameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e-20 to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e0.20 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.3769%; height: 19.5938px;\"\u003eApproximate Dimensions\u003c\/td\u003e\n\u003ctd style=\"width: 60.2898%; height: 19.5938px;\"\u003e46 mm x 94 mm x 91 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Base Pin (Typical 1797-TB3)\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput 0 (+) to Input 7 (+)\u003c\/td\u003e\n\u003ctd\u003eAnalog Input Current Signal Connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReturn 0 (-) to Return 7 (-)\u003c\/td\u003e\n\u003ctd\u003eSignal Common Return Paths\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e+V Ex\u003c\/td\u003e\n\u003ctd\u003eIntrinsically Safe Transmitters Power Feed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eHazardous Area Precautions\u003c\/h3\u003e\n\u003cp\u003eVerify all installation procedures comply with local national electrical codes for hazardous locations. Ensure the module is mated exclusively with an approved intrinsically safe \u003cstrong\u003eFLEX Ex\u003c\/strong\u003e terminal base to maintain appropriate energy-limiting protective parameters.\u003c\/p\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003eHook the top of the module chassis into the upper channel slot of the standard 35 mm DIN rail. Rotate the body downward with consistent force until the low-side locking tabs engage with the metallic track lip.\u003c\/p\u003e\n\u003ch3\u003eShielding and Grounding\u003c\/h3\u003e\n\u003cp\u003eTerminate all instrumentation cable shields at the dedicated chassis ground bar provided on the terminal base assembly. Do not ground the cable shield at both ends of the run to prevent creating a ground loop inside the hazardous zone.\u003c\/p\u003e\n\u003ch3\u003eThermal Management\u003c\/h3\u003e\n\u003cp\u003eAllow a minimum of 50 mm clearance on all sides of the terminal stack to facilitate natural air circulation. Confirm that the enclosure ventilation keeps ambient temperatures near the module body below 60 degC during maximum load conditions.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the core function of this hardware components?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt provides an interface to receive and digitize analog signals from field transmitters located in explosive atmospheres while preventing ignition energies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require an external zener barrier?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the module features built-in galvanic isolation and energy-limiting circuits designed to operate directly with field devices in hazardous zones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this device measure voltage inputs like 0 to 10V?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, this specific model is engineered exclusively to accept and process standard 4 to 20 mA current loop signals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat terminal base is compatible with this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is designed to plug directly into the 1797-TB3 or 1797-TB3S intrinsically safe terminal base units.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be swapped out while the network adapter is active?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it supports removing and replacing modules under power within hazardous areas when used with appropriate FLEX Ex terminal structures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the controller detect an unplugged sensor wire?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module registers an under-range fault parameter when the input current drops significantly below the standard 4 mA threshold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the eight input channels electrically isolated from one another?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe eight channels share a common internal reference within the module, though the group is isolated from the main control backplane.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat communication protocol does the module use to talk to the PLC?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt sends data across the local backplane to a 1797 network adapter, which typically links to the main controller via a ControlNet Ex network.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs calibration required before deploying the unit into service?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe hardware undergoes factory calibration before shipment, but electronic zero and span parameters can be adjusted via controller software.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum operating temperature limit for this component?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit is specified to operate reliably in ambient industrial environments ranging up to 60 degC without active cooling.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695186440555,"sku":"1797-IE8","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1797-ie8-analog-input-module-d11sn1wenji_359bcb73-bffa-4a4a-925f-21647403f4f2.jpg?v=1766114479"},{"product_id":"allen-bradley-1794-ib8-flex-i-o-digital-input-module","title":"Allen-Bradley 1794-IB8 FLEX I\/O Digital Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-IB8\u003c\/strong\u003e is a discrete hardware component engineered for the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed input\/output platform. This 24V DC digital input module is designed to monitor binary field conditions by converting high-level voltage potentials from industrial sensing devices into digital status bits for the system processor. Operating as a sinking configuration, the unit senses current passing from sourcing field elements through its input circuitry to the common return rail, establishing a clean interface between physical plant switches and digital logic registers.\u003c\/p\u003e\n\u003cp\u003eEquipped with eight independent, non-isolated input channels, the device routes field signals back to a centralized programmable logic controller via a compatible \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e network adapter across \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e, \u003cstrong\u003eControlNet\u003c\/strong\u003e, or \u003cstrong\u003eDeviceNet\u003c\/strong\u003e backplanes. The \u003cstrong\u003e1794-IB8\u003c\/strong\u003e plugs directly into a specialized terminal base unit that anchors the module to standard industrial mounting frameworks. This module type is typically integrated into manufacturing applications, material handling facilities, logistics sorting hubs, and water infrastructure management panels requiring low-channel-count, reliable sensor aggregation.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEight discrete sinking input channels for low-density distributed field monitoring.\u003c\/li\u003e\n\u003cli\u003e24V DC nominal operation matching standard industrial proximity sensors and switches.\u003c\/li\u003e\n\u003cli\u003eSupport for Removal and Insertion Under Power (RIUP) to facilitate rapid maintenance cycles.\u003c\/li\u003e\n\u003cli\u003eIndividual front-facing LED indicators displaying real-time digital status for each input loop.\u003c\/li\u003e\n\u003cli\u003eIntegrated software filtering configurations to reduce signal bounce from mechanical contacts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProximity sensor and photoelectric eye array state tracking.\u003c\/li\u003e\n\u003cli\u003ePushbutton stations and selector switch monitoring.\u003c\/li\u003e\n\u003cli\u003eConveyor line jam switch and sorting gate alignment verification.\u003c\/li\u003e\n\u003cli\u003eMechanical limit switch safety interlock logging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-IB8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital Sinking Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e8 Channels, Non-Isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10V DC to 31.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Current Limit\u003c\/td\u003e\n\u003ctd\u003e2.0 mA minimum, 12.0 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Voltage Range\u003c\/td\u003e\n\u003ctd\u003e5.0V DC maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Current Limit\u003c\/td\u003e\n\u003ctd\u003e1.5 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e3.4 kilohms maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Draw\u003c\/td\u003e\n\u003ctd\u003e30 mA at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Filter Time (On to Off)\u003c\/td\u003e\n\u003ctd\u003eProgrammable (0.25 ms nominal to 8.0 ms maximum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.08 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e46 mm x 94 mm x 53 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Base Pin Location\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Signal Assignment\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal 0 to Terminal 7\u003c\/td\u003e\n\u003ctd\u003eInput Signal Connection Nodes 0 through 7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e+V (External Power)\u003c\/td\u003e\n\u003ctd\u003e24V DC Sourcing Sensor Voltage Supply Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOM (External Power)\u003c\/td\u003e\n\u003ctd\u003eShared DC Return Reference Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Installation\u003c\/h3\u003e\n\u003cp\u003eHook the upper retention slots of the enclosure chassis over the top flange of standard 35 mm DIN tracking. Rotate the lower portion of the housing down until the spring-loaded lower locking mechanisms snap firmly around the base metal rail.\u003c\/p\u003e\n\u003ch3\u003eTerminal Base Seating\u003c\/h3\u003e\n\u003cp\u003eAlign the molded structural alignment channels on the underside of the electronic module with the guide rails on the pre-installed terminal base unit. Push the module directly into the socket until the edge latches click to secure the unit.\u003c\/p\u003e\n\u003ch3\u003eWiring Configuration\u003c\/h3\u003e\n\u003cp\u003eConnect external sourcing sensors to terminals 0 through 7. Ensure that the 24V DC external operational voltage loop supplies field devices from the corresponding power rail on the terminal block to maintain a proper common return path.\u003c\/p\u003e\n\u003ch3\u003eSignal Integrity and Routing\u003c\/h3\u003e\n\u003cp\u003eIsolate the low-voltage direct current input lines from high-voltage AC electrical lines, electric motor feeds, and inductive switching fields to prevent ambient electromagnetic noise from generating false input transitions.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the electrical switching configuration of this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module uses a sinking configuration, which requires connected field devices to source current into the input terminal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre individual input channels electrically isolated from each other?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the eight input channels share a common internal ground reference rail within the module assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan an engineer hot-swap this device during active plant operation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it supports removal and insertion under power, allowing for module replacement without shutting down power to the wider assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat terminal base models can be used to mount this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is compatible with standard terminal base assemblies including the 1794-TB2, 1794-TB3, 1794-TB3S, and 1794-TBN units.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can high-frequency signal bounce from a mechanical switch be prevented?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe digital input filter time can be adjusted in the controller configuration parameters to stabilize noisy field signals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do the yellow LED indicators on the faceplate signify?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach indicator lights up when the corresponding input channel senses an active on-state voltage parameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require external power to operate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, a nominal 24V DC power source must be run to the terminal base block to drive the internal field-side input circuitry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat voltage constitutes a logical off-state for a channel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAn input channel registers as off when the voltage potential drops below 5.0V DC or the input loop current falls below 1.5 mA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this device process signals from 120V AC limit switches?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, this module is rated exclusively for low-voltage direct current ranges between 10V DC and 31.2V DC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is input data sent from this module to a ControlLogix processor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit transmits register values across the local FlexBus backplane to a network adapter module, which then forwards the data to the central controller.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695186801003,"sku":"1794-IB8","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-ib8-flex-i-o-digital-input-modules-fb1zorbaqwg_6706dc9f-3245-4e71-98d3-ef243128a1a8.jpg?v=1766114485"},{"product_id":"allen-bradley-1794-adn-flex-i-o-devicenet-adapter-module","title":"Allen-Bradley 1794-ADN FLEX I\/O DeviceNet Adapter Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-ADN\u003c\/strong\u003e is a network communications adapter designed for the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed input\/output platform. This component serves as the physical and logical gateway linking a local cluster of up to eight digital, analog, or specialty operational modules to a centralized programmable logic controller over a \u003cstrong\u003eDeviceNet\u003c\/strong\u003e network infrastructure. It manages high-speed, bidirectional data transactions, translating the subsystem bus variables across the proprietary FlexBus backplane into discrete application-layer frames specified by the open industrial network standard.\u003c\/p\u003e\n\u003cp\u003eOperating as a standard slave device on the master bus, the module contains built-in microcontrollers that manage independent startup mapping routines, including a fresh out-of-the-box discovery protocol that auto-detects and allocates precise block dimensions per physical I\/O slot. The integrated communication hardware accommodates a singular drop or daisy-chain linear topology using screw-secured plug-in connectors. The \u003cstrong\u003e1794-ADN\u003c\/strong\u003e is deployed inside industrial machine panels, remote sensor arrays, assembly plant conveyor lines, and localized processing skids requiring reliable, space-saving signal multiplexing to reduce physical panel wiring overhead.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInterfaces a centralized DeviceNet infrastructure with local modular distributed FLEX I\/O rails.\u003c\/li\u003e\n\u003cli\u003eAutomatic physical I\/O slot discovery and configuration parsing during power-up sequence routines.\u003c\/li\u003e\n\u003cli\u003eRemovable front-mounted network screw connector to maintain cable bus connections during replacement cycles.\u003c\/li\u003e\n\u003cli\u003eThree physical rotary thumbwheel selectors enabling immediate, hard-wired node address specification.\u003c\/li\u003e\n\u003cli\u003eDirect internal translation capabilities for up to eight distinct operational backplane modules.\u003c\/li\u003e\n\u003cli\u003eThree distinct diagnostic light-emitting diodes providing localized status logs for power, adapter, and network link states.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDistributed control panel sensor aggregation over wide production plant networks.\u003c\/li\u003e\n\u003cli\u003eAutomotive assembly station line monitoring and discrete block control.\u003c\/li\u003e\n\u003cli\u003eConveyor sortation systems and high-density packaging line distribution clusters.\u003c\/li\u003e\n\u003cli\u003eSpecialized manufacturing skid machinery data acquisition.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-ADN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDeviceNet Communications Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Module Capacity\u003c\/td\u003e\n\u003ctd\u003e8 Modules Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Protocols\u003c\/td\u003e\n\u003ctd\u003eDeviceNet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Baud Rates\u003c\/td\u003e\n\u003ctd\u003e125 kbps, 250 kbps, 500 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e24V DC Nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperational Voltage Window\u003c\/td\u003e\n\u003ctd\u003e19.2V DC to 31.2V DC (Includes 5% AC Ripple)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Current Draw\u003c\/td\u003e\n\u003ctd\u003e300 mA at 24V DC, 400 mA at 19.2V DC Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeviceNet Network Power Load\u003c\/td\u003e\n\u003ctd\u003e24V DC at 90 mA Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Power Delivery\u003c\/td\u003e\n\u003ctd\u003e640 mA at 5V DC Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e50V Continuous (Basic Insulation Type)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e7.6 W Maximum at 19.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e26 BTU\/hour Maximum at 19.2V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type Rating\u003c\/td\u003e\n\u003ctd\u003eOpen Style \/ IP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Size Limits\u003c\/td\u003e\n\u003ctd\u003e22 AWG to 12 AWG Stranded Copper Rated at 75 Celsius Minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity Window\u003c\/td\u003e\n\u003ctd\u003e5% to 95% Non-Condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e195.5 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e87 mm x 68 mm x 69 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eConnector Pin\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal A\u003c\/td\u003e\n\u003ctd\u003eExternal Operational Supply +V DC Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal B\u003c\/td\u003e\n\u003ctd\u003eExternal Operational Supply -V Common Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal C\u003c\/td\u003e\n\u003ctd\u003eChassis Functional Earth Ground Lead Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeviceNet Pin 1 (Black)\u003c\/td\u003e\n\u003ctd\u003eNetwork V- Power Supply Reference Common\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeviceNet Pin 2 (Blue)\u003c\/td\u003e\n\u003ctd\u003eCAN_L Signal Communication Inverted Node\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeviceNet Pin 3 (Bare)\u003c\/td\u003e\n\u003ctd\u003eNetwork Cable Metallic Drain Shield Ground Node\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeviceNet Pin 4 (White)\u003c\/td\u003e\n\u003ctd\u003eCAN_H Signal Communication Non-Inverted Node\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDeviceNet Pin 5 (Red)\u003c\/td\u003e\n\u003ctd\u003eNetwork V+ External Operating Power Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Mounting\u003c\/h3\u003e\n\u003cp\u003eTilt the top lip of the adapter bracket assembly onto an IEC-compliant 35 mm metallic DIN rail. Pivot the lower half of the module box downward until the spring-activated bottom tracking latch engages into a locked alignment. Install rigid physical end anchors flanking the boundary ends of the rail string to block lateral movement.\u003c\/p\u003e\n\u003ch3\u003eFlexBus Backplane Alignment\u003c\/h3\u003e\n\u003cp\u003ePosition the network adapter module at the leftmost boundary slot of the mounting rail. Align the receiving notch profile on the lower right casing wall with the anchor hook on the first functional I\/O terminal base, sliding the units firmly together until the side FlexBus connection bus path pins bridge fully inside the terminal sockets.\u003c\/p\u003e\n\u003ch3\u003eWiring and Torque Requirements\u003c\/h3\u003e\n\u003cp\u003eExclusively terminate field cables using stranded copper conductors inside specified gauge restrictions. Torque all front removable terminal block power connections to exactly 0.8 N-m (7 lb-in). Ensure power supply connection leads tracking the external direct current input are brief and do not exceed 3 meters in total length.\u003c\/p\u003e\n\u003ch3\u003eNoise Separation Regulations\u003c\/h3\u003e\n\u003cp\u003eIsolate network interface drop lines and associated FlexBus signaling rails away from electrical power drops, variable frequency drive output conduits, high-voltage switching fields, and heavy motor feeds to prevent high-frequency electromagnetic field induction.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum number of modules this adapter can drive?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit can interface with up to eight independent FLEX I\/O modular blocks attached continuously to the right side of its backplane.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the unique network address defined on this specific component?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe node address is selected manually by adjusting the three mechanical rotary thumbwheel switches on the front facing panel before starting the network.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power output does the internal circuit feed down the local backplane?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe adapter supplies a maximum current of 640 mA at 5V DC to power the logic chips of connected extension modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this device require power from both the external source and the network cable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the internal backplane requires a standard 24V DC auxiliary source, while the primary transceiver circuit must receive power directly from the active DeviceNet trunk lines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do flashing red cycles on the Module\/Network LED signify?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA flashing red indication represents a minor recoverable fault state, suggesting an address configuration conflict or a data register mismatch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum data rate supported across this link?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe adapter communicates at standard industrial intervals of 125 kbps, 250 kbps, and 500 kbps depending on total network loop lengths.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan an engineer hot-swap the network adapter when the system is active?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, while individual I\/O modules allow removal under power, extracting the network adapter completely interrupts communication blocks for all eight secondary points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat isolation rating is certified for this specific interface structure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit features basic insulation certified for a continuous potential barrier up to 50V between user power lines and the system logic circuitry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat setting initiates an absolute factory configuration wipe on the hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSetting the three mechanical rotary switch dials to a code pattern of 888 and cycling power executes an internal memory clear routine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of cabling is approved to bridge the primary bus connections?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe network link requires certified Belden YR-29832 or equivalent shielded industrial twisted-pair DeviceNet media.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695187423595,"sku":"1794-ADN","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-adn-devicenet-adaptor-bj5kxzvvrfc_70aca642-c898-4ff7-8e1c-dca9081295f2.jpg?v=1766114509"},{"product_id":"allen-bradley-1794-tb3k-flex-i-o-conformal-coated-terminal-base-unit","title":"Allen-Bradley 1794-TB3K FLEX I\/O Conformal Coated Terminal Base Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-TB3K\u003c\/strong\u003e is a specialized, ruggedized mounting and wiring component designed for the \u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e distributed modular platform. This industrial hardware component forms the essential baseline configuration for remote I\/O terminal assemblies, combining field-side sensor\/actuator wiring points with an integrated backplane bus matrix. This specific variant features factory-applied conformal coating protection, which shields internal circuitry from corrosive atmospheric agents, humidity, and airborne contaminants often encountered in harsh operating areas.\u003c\/p\u003e\n\u003cp\u003eEquipped with a three-tier terminal block configuration, the unit provides thirty-six individual termination screws to manage discrete or analog signals, power distribution paths, and common ground lines separately. The \u003cstrong\u003e1794-TB3K\u003c\/strong\u003e establishes backplane structural links via an integrated male\/female FlexBus connector side-assembly, enabling continuous data and power transfer across the complete local modular cluster. It is standard in heavy-duty processing industries—such as wastewater treatment plants, offshore drilling platforms, pulp and paper processing plants, and chemical synthesis installations—requiring resilience against ambient environmental degradation.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFactory conformal coating providing enhanced corrosion and moisture protection for reliability in harsh locations.\u003c\/li\u003e\n\u003cli\u003eThree-tier termination design separating active signal lanes, power supply buses, and ground return connections.\u003c\/li\u003e\n\u003cli\u003eIntegrated slide-and-lock FlexBus connectors facilitating modular backplane scaling on a single rail.\u003c\/li\u003e\n\u003cli\u003eIndependent operational design allowing processing modules to be hot-swapped without removing field wiring.\u003c\/li\u003e\n\u003cli\u003eBuilt-in mechanical alignment keys ensuring correct module matching and secure physical seating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWastewater and sewage purification processing control panels.\u003c\/li\u003e\n\u003cli\u003eChemical refining and corrosive chemical batching plants.\u003c\/li\u003e\n\u003cli\u003eMarine processing platforms and coastal automation installations.\u003c\/li\u003e\n\u003cli\u003ePulp, paper, and heavy mineral milling processing machinery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1794-TB3K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Type\u003c\/td\u003e\n\u003ctd\u003eConformal Coated Terminal Base Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTermination Type\u003c\/td\u003e\n\u003ctd\u003e3-Tier Screw Clamp Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Terminal Points\u003c\/td\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Size Capacity\u003c\/td\u003e\n\u003ctd\u003e0.34 mm2 to 2.5 mm2 (22 to 12 AWG) solid or stranded copper wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Screw Torque\u003c\/td\u003e\n\u003ctd\u003e0.56 to 0.79 N-m (5.0 to 7.0 lb-in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e31.2V DC \/ 132V AC maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Capacity\u003c\/td\u003e\n\u003ctd\u003e10 A maximum per power bus, 2 A maximum per signal terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Type\u003c\/td\u003e\n\u003ctd\u003eConformal coated circuit board substrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.14 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e94 mm x 94 mm x 69 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Row Designation\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Termination Allocation\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow A (Top Tier)\u003c\/td\u003e\n\u003ctd\u003eInput \/ Output signal wire connection nodes 0 through 15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow B (Middle Tier)\u003c\/td\u003e\n\u003ctd\u003eSourcing power supply voltage distribution terminals (+V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRow C (Bottom Tier)\u003c\/td\u003e\n\u003ctd\u003eCommon signal reference return and chassis grounding links (COM\/GND)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eDIN Rail Mounting\u003c\/h3\u003e\n\u003cp\u003eCatch the upper rear mounting claws of the assembly block onto the top edge of a standard zinc-plated 35 mm DIN rail. Press down and inward firmly on the lower edge of the enclosure until the spring-loaded metallic retaining clip snaps over the bottom track rail.\u003c\/p\u003e\n\u003ch3\u003eBackplane Connection\u003c\/h3\u003e\n\u003cp\u003eAlign the side-facing male FlexBus pins of the new unit with the matching female socket of the existing module or network adapter on the rail. Slide the base laterally until the two housings mate flush and the interlocking retention clips engage.\u003c\/p\u003e\n\u003ch3\u003eField Wiring Termination\u003c\/h3\u003e\n\u003cp\u003eStrip the insulation from the incoming field conductors to a length of approximately 7 mm. Insert the bare copper wire fully into the designated screw clamp receptacle and tighten the terminal screw to a torque rating between 0.56 and 0.79 N-m.\u003c\/p\u003e\n\u003ch3\u003eCorrosion Protection Preservation\u003c\/h3\u003e\n\u003cp\u003eKeep the protective cover plates over the FlexBus interface connections if adjacent slots on the DIN rail remain unpopulated. Avoid scratching the interior base board during cleaning or module replacement to prevent damaging the factory conformal coating film layer.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat distinguishes this base unit from a standard 1794-TB3 model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis unit features a factory-applied conformal coating layer on its internal circuit board components to provide extra protection against harsh environmental contaminants.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be mixed with non-conformal coated modules on the same rail?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it is physically and electrically compatible with standard modules, though the complete system should be coated to achieve full environmental resilience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat wire gauge range can the terminal screws safely accommodate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe terminal blocks accept solid or stranded copper conductors ranging from 22 AWG up to 12 AWG.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this component support the hot-swapping of operational I\/O modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it allows electronic application modules to be removed and inserted under power without requiring the removal of field wires or shutting down the bus adapter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs an external power supply run directly to this terminal block?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, field-side sensor and actuator supply voltage must be wired to the Row B terminals to distribute power across the module points.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum current limit permitted per signal terminal?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach independent signal terminal screw is rated to handle a continuous current flow of up to 2 A.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the unit connect to the main system programmable logic controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt links back to the main controller through a communications adapter module positioned at the leftmost position of the local DIN rail track.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit handle alternating current field instrumentation loops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the electrical insulation design allows for switching signals up to a maximum rating of 132V AC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat tools are required to mount the base onto the DIN rail?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo tools are required for mounting, as the unit snaps directly onto the rail, but a flat-head screwdriver can be used to release the lower latch during removal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum torque recommendation for the terminal clamp screws?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe screws should be tightened to a value within the 0.56 to 0.79 N-m range to prevent stripping while maintaining low contact resistance.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695188242795,"sku":"1794-TB3K","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-tb3k-base-unit-u4i2p54k140_269078ed-092a-4403-a3a5-8508c4527cfc.jpg?v=1766114541"},{"product_id":"1794-ie8-allen-bradley-flex-i-o-8-channel-analog-input-module","title":"1794-IE8 Allen-Bradley FLEX I\/O 8-Channel Analog Input Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview and Distributed I\/O Efficiency\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IE8 (1794IE8)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-density analog input module designed for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFLEX I\/O\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eplatform, one of the most successful distributed I\/O systems in industrial history. Engineered for modularity and space efficiency, this module provides\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8 non-isolated inputs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethat can be individually configured for either voltage or current signals. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IE8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis an essential component for high-point-count systems in water treatment, chemical processing, and HVAC control, where mounting I\/O closer to the field sensors is required to reduce wiring costs. By utilizing a separate terminal base, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IE8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eallows for \"Removal and Insertion Under Power\" (RIUP), ensuring that maintenance can be performed without shutting down the entire control network.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHardware Architecture and Signal Flexibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IE8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einterfaces with the network (EtherNet\/IP, ControlNet, or DeviceNet) via a FLEX I\/O adapter. Its design separates the electronic module from the field wiring, providing a clean and serviceable installation.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConfigurable Input Ranges:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports standard industrial signals including\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4 to 20 mA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0 to 20 mA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor current loops, as well as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e+\/- 10 V\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0 to 10 V\u003c\/strong\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e0 to 5 V\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor voltage inputs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eA\/D Conversion:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEmploys a 12-bit successive approximation converter, delivering a resolution of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1.22 uA\/count\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor current and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2.56 mV\/count\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor voltage (at 10 V range).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModular Mounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSnaps easily onto a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-TB2, 1794-TB3, or 1794-TB3S\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eterminal base, which contains the wiring points and the communication backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eData Format:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePresents data to the controller in a 16-bit 2's complement integer format, facilitating easy scaling within Logix Designer or RSLogix 5000 routines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e1794-IE8\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAllen-Bradley \/ Rockwell Automation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Single-ended, Non-isolated\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12-bit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 to 20 mA, 0 to 20 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e+\/- 10 V, 0 to 10 V, 0 to 5 V, 1 to 5 V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConversion Rate\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e256 microseconds for all channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFlexbus Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20 mA @ 5 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eExternal DC Power\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC Nominal (10.5 to 31.2 VDC range)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 55 Celsius\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003e0.8 kg\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eIntegrated Technical FAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I switch between voltage and current modes on the 1794-IE8?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMode selection is handled via the module's\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003econfiguration word\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein the controller software. There are no physical jumpers on the module itself; you simply set the bits in the output image of the I\/O adapter to define the signal type for each channel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the advantage of using a Terminal Base (e.g., 1794-TB3) with this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe terminal base allows you to wire the sensors once and leave them in place. If the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IE8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eelectronics fail, you can pull the module off the base and snap on a new one without touching a single screwdriver, drastically reducing Mean Time to Repair (MTTR).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module provide power to 2-wire transmitters?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IE8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodule itself does not provide loop power. When using 2-wire transmitters, you must use a terminal base like the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-TB3\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhich has extra terminals to distribute the 24 VDC field power to the sensors.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eEngineering \u0026amp; Installation Protocols\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal Base Alignment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen installing the module, align the keys on the bottom of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IE8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith the slots on the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-TB3\u003c\/strong\u003e. Press firmly until the latching mechanism clicks. An improperly seated module can lead to intermittent \"I\/O Connection Faults\" on the network.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Loop Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen configuring channels for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4 to 20 mA\u003c\/strong\u003e, ensure that the external 24 V power supply is stable. The module has a maximum input current rating of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e32 mA\u003c\/strong\u003e; exceeding this can damage the internal precision resistors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShield Termination:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor analog accuracy, use shielded cables and terminate the shield at the ground lugs provided on the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-TBC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor the grounded DIN rail. Avoid grounding both ends of the shield to prevent ground loops that induce 50\/60 Hz ripple into the 12-bit conversion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEngineering Advantages\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1794-IE8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003estands out for its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigh-speed throughput\u003c\/strong\u003e. With a conversion rate of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e256 microseconds\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor all 8 channels, it provides near-real-time data for fast-acting control loops. Its non-isolated design is a cost-effective choice for systems where all sensors share a common reference point, allowing for high-density analog acquisition without the bulk or expense of isolated modules. Its compatibility across all major industrial networks ensures it remains a flexible asset in both legacy PLC-5\/SLC systems and modern ControlLogix architectures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695193092459,"sku":"1794-IE8","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1794-ie8-flex-8-point-analog-input-module-s5wdi0m1zcf_873ae131-d7ea-4994-beaf-7a00c295ad4a.jpg?v=1766114705"}],"url":"https:\/\/www.plcprotech.com\/collections\/allen-bradley-flex-i-o.oembed?page=2","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}