{"product_id":"beckhoff-ep3174-0002-ethercat-box-4-channel-analog-input-module","title":"Beckhoff EP3174-0002 EtherCAT Box 4-Channel Analog Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  Engineered for direct field deployment without an electrical cabinet, the \u003cstrong\u003eBeckhoff EP3174-0002\u003c\/strong\u003e provides highly precise acquisition of analog industrial signals over EtherCAT. This rugged IP67-rated module features four individually parameterizable differential inputs, allowing seamless software configuration between voltage (-10 to +10 V) and current (0\/4 to 20 mA) measurement modes per channel. By combining high-speed 16-bit analog-to-digital conversion with Distributed Clocks capability, it guarantees synchronized, low-latency data acquisition across decentralized network architectures.\n\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFour Parameterizable Channels:\u003c\/strong\u003e Individually configurable for -10\/0...+10 V or 0\/4...20 mA signals via TwinCAT software.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRugged IP67 Protection:\u003c\/strong\u003e Fully sealed housing enables direct machine mounting under harsh environmental conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Digitization:\u003c\/strong\u003e 16-bit analog-to-digital converter (including sign) delivers precise process values.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDistributed Clocks (DC):\u003c\/strong\u003e Supports microsecond-precise synchronization with other EtherCAT network components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiagnostic Feedback:\u003c\/strong\u003e Integrated status LEDs for EtherCAT network state, channel condition, and auxiliary power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eAutomotive assembly lines and decentralized manufacturing cells.\u003c\/li\u003e\n  \u003cli\u003eProcess automation installations requiring field-mounted sensors.\u003c\/li\u003e\n  \u003cli\u003eMulti-axis motion control synchronization using Distributed Clocks.\u003c\/li\u003e\n  \u003cli\u003eWind power plants and heavy machinery tracking in high-vibration zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBeckhoff Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eEP3174-0002\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eProtocol\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eEtherCAT\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNumber of Inputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4 differential inputs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSignal Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e-10 V to +10 V | 0 mA to 20 mA | 4 mA to 20 mA (configurable per channel)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e16-bit (including sign)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInternal Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e\u0026gt; 200 kOhm (voltage) | typ. 85 Ohm + diode voltage (current)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCommon-Mode Voltage (U_CM)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMax. 35 V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eMeasurement Error\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e\u0026lt; +-0.3% (relative to full scale value)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eConversion Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eapprox. 100 microseconds\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Filter Limit Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e5 kHz (configurable filter)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNominal Power Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 V DC (-15% \/ +20%)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCurrent Consumption from U_S\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e120 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eElectrical Isolation\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e500 V (functional isolation)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e-25 degC to +60 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eStorage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e-40 degC to +85 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eProtection Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eIP65 \/ IP66 \/ IP67 (conforms to EN 60529)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEx Marking\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eII 3 G Ex nA IIC T4 Gc (ATEX Zone 2)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eVibration\/Shock Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEMC Immunity\/Emission\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eapprox. 165 g\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e2.0 kg (including protective packaging)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eConnection Port\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eConnector Type\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 8px; font-weight: bold;\"\u003eSignal Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEtherCAT Bus (In\/Out)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e2 x M8 socket, shielded, screw type\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eEtherCAT transmit and receive pairs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eAnalog Inputs (Channels 1-4)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4 x M12 female connector, 5-pin, A-coded\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eDifferential Input +, Differential Input -, Sensor Supply (+24V UP), Ground (GND), Shield\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePower Feed\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1 x M8 male socket, 4-pin\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eControl voltage U_S (24V DC), Load voltage U_P (24V DC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePower Downstream\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1 x M8 female socket, 4-pin\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eLoop-through of U_S and U_P to downstream modules\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  The EP3174-0002 serves as the IP67 field-mounted equivalent of the Beckhoff EL3174 EtherCAT Terminal. While they share identical TwinCAT process image structures and parameterization objects (CoE index 0x8000), note that physical fieldbus routing differs: the EP module requires M8 cabling rather than terminal blocks. Ensure TwinCAT 3 version 3.1.4024 or higher is deployed to take full advantage of the advanced diagnostic indices.\n\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  The common-mode voltage limit (U_CM) is rated at a maximum of 35 V. If your differential signals are referenced to a ground potential that floats beyond this limit relative to the module's supply ground, measurement saturation or analog front-end damage can occur. Always verify that a low-impedance ground connection is maintained between decoupled power domains. When operating in current mode, the module presents an internal resistance of approximately 85 Ohms plus a diode voltage drop; ensure your field transmitters have sufficient compliance voltage to drive this combined load.\n\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  By default, channels may initialize in voltage mode. To parameterize a channel to current mode (e.g., 4 to 20 mA), navigate to the TwinCAT System Manager, select the EP3174-0002 module, go to the \u003cstrong\u003eCoE - Online\u003c\/strong\u003e tab, and modify the \"Presentation\" and \"Range\" indices inside the 0x80n0 object directory (where n corresponds to the channel index 0 to 3). For maximum high-frequency noise immunity, construct a 360-degree shield termination on the M12 mating connector backshell to ground electromagnetic interference directly to the module's integrated mounting plate.\n\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; border-radius: 4px;\"\u003e\n  \u003cp style=\"margin: 0; font-weight: bold; color: #9b2c2c;\"\u003eCRITICAL WARNING: ELECTRICAL HAZARD\u003c\/p\u003e\n  \u003cp style=\"margin: 0.5rem 0 0 0; color: #9b2c2c; font-size: 0.95rem;\"\u003e\n    Ensure all power supplies (U_S and U_P) are physically isolated and locked out before initiating mounting, wiring, or maintenance on this EtherCAT Box. Failure to de-energize the fieldbus line can lead to sudden electrical arcs, damage to high-sensitivity internal conversion components, or unexpected machinery behavior.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"display: flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eMount the module onto a flat, grounded metallic surface using two M3 screws through the mounting holes. Ensure the metal plate has a low-impedance connection to the machine chassis ground.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"display: flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eConnect the incoming EtherCAT network cable to the top-left M8 socket (marked as IN) and the downstream line to the OUT socket. Securely hand-tighten the M8 threaded collars to achieve IP67 protection.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"display: flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eWire the analog field sensors to the respective M12 (Channels 1 to 4) sockets using shielded, twisted-pair cables. Use torque wrenches calibrated for M12 connectors (typically 0.6 Nm) to seal the interface.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"display: flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"margin: 0; color: #2d3748;\"\u003eApply 24V DC auxiliary power to the M8 power feed socket. Verify that the \"Us\" (Logic Power) and \"Up\" (Peripheral Power) LED indicators glow solid green prior to starting the EtherCAT master network scan.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106459378027,"sku":"EP3174-0002","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/ep3174-0002-z0j4yi11yug.png?v=1776244667","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-ep3174-0002-ethercat-box-4-channel-analog-input-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}