{"product_id":"allen-bradley-1756-l75-controllogix-5570-controller","title":"Allen-Bradley 1756-L75 ControlLogix 5570 Controller","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-L75\u003c\/strong\u003e is a high-performance programmable automation controller (PAC) belonging to the \u003cstrong\u003eControlLogix 5570\u003c\/strong\u003e controller family. Designed for complex industrial control applications, it acts as a central processing unit within the \u003cstrong\u003eRockwell Automation Integrated Architecture\u003c\/strong\u003e system. The controller is capable of managing demanding discrete, motion, process, and safety tasks across broad industrial automation environments.\u003c\/p\u003e\n\u003cp\u003eEquipped with \u003cstrong\u003e32 MB\u003c\/strong\u003e of user memory, the \u003cstrong\u003e1756-L75\u003c\/strong\u003e provides substantial capacity for large control programs, extensive data logging, and complex tag structures. Front-panel features include a \u003cstrong\u003e1-port USB 2.0\u003c\/strong\u003e connection intended for local programming, commissioning, and firmware updates, alongside a \u003cstrong\u003e4-character alpha\/numeric display\u003c\/strong\u003e that provides real-time operational status, diagnostic codes, and system initialization feedback.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e1756-L75\u003c\/strong\u003e operates within any standard slot of a \u003cstrong\u003eControlLogix 1756 chassis\u003c\/strong\u003e. Communicating across the high-speed backplane, the controller integrates with a wide variety of network interface modules—including \u003cstrong\u003eEtherNet\/IP\u003c\/strong\u003e, \u003cstrong\u003eControlNet\u003c\/strong\u003e, and \u003cstrong\u003eDeviceNet\u003c\/strong\u003e—and connects directly to localized or remote \u003cstrong\u003eI\/O expansion modules\u003c\/strong\u003e. It relies on an embedded, non-removable \u003cstrong\u003eEnergy Storage Module (ESM)\u003c\/strong\u003e, eliminating the maintenance requirements associated with conventional lithium battery replacement.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e32 MB User Memory:\u003c\/strong\u003e Provides large capacity for extensive application code, complex tag structures, and data handling without supplemental memory hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Motion Capability:\u003c\/strong\u003e Supports motion control over EtherNet\/IP networks as well as SERCOS and analog motion interfaces via compatible chassis-based modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB 2.0 Maintenance Port:\u003c\/strong\u003e Front-facing USB 2.0 Type-B port allows full-speed (12 Mbps) local programming, configuration, firmware updates, and online edits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlphanumeric Status Display:\u003c\/strong\u003e Integrated 4-character display provides real-time diagnostic indicators, fault codes, and operational status at a glance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery-Free Energy Storage:\u003c\/strong\u003e Utilizes an embedded, non-removable Energy Storage Module (ESM) to preserve critical data during power cycles without requiring battery maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Networking:\u003c\/strong\u003e Communicates across the backplane to support EtherNet\/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I\/O, and SynchLink communication interfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNonvolatile Data Backup:\u003c\/strong\u003e Includes a pre-installed 1 GB Secure Digital memory card (1784-SD1) for automated or manual backup of program code and system parameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Execution:\u003c\/strong\u003e Supports up to 32 controller tasks with up to 1,000 programs per task, enabling prioritized periodic, event-driven, and continuous execution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplex Machine Control:\u003c\/strong\u003e Provides high-speed processing and logic execution for automated assembly lines, packaging machinery, and material handling systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Motion Systems:\u003c\/strong\u003e Coordinates multi-axis servo drives and positioning systems using Integrated Motion over EtherNet\/IP or SERCOS interfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant-Wide Process Control:\u003c\/strong\u003e Manages continuous and batch processing equipment, regulatory loops, and data integration across distributed I\/O architectures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundancy Systems:\u003c\/strong\u003e Functions as a primary or secondary processor in high-availability ControlLogix redundant chassis configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003eGeneral\u003c\/h4\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\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eControlLogix 5570 Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalog Number\u003c\/td\u003e\n\u003ctd\u003e1756-L75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Type\u003c\/td\u003e\n\u003ctd\u003eProgrammable Automation Controller (PAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Width\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Location\u003c\/td\u003e\n\u003ctd\u003eChassis-based, any slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw @ 1.2V DC\u003c\/td\u003e\n\u003ctd\u003e5.0 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw @ 5.1V DC\u003c\/td\u003e\n\u003ctd\u003e800 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e2.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e8.5 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight, approx\u003c\/td\u003e\n\u003ctd\u003e0.25 kg (0.55 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003ePerformance and Memory\u003c\/h4\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\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e32 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNonvolatile Memory Storage\u003c\/td\u003e\n\u003ctd\u003e1 GB SD card (1784-SD1 pre-installed; supports optional 2 GB 1784-SD2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Tasks\u003c\/td\u003e\n\u003ctd\u003e32 tasks (combination of continuous, periodic, and event tasks; max 1,000 programs\/task)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital I\/O, max\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog I\/O, max\u003c\/td\u003e\n\u003ctd\u003e4,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal I\/O, max\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnergy Storage Module\u003c\/td\u003e\n\u003ctd\u003eEmbedded non-removable ESM (1756-ESMCAP \/ 1756-ESMNSE equivalent technology)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eCommunication and Interfaces\u003c\/h4\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\u003eOn-Board USB Port\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0 Type-B, Full speed (12 Mbps); programming, configuration, firmware update, online edits only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Display\u003c\/td\u003e\n\u003ctd\u003e4-character alpha\/numeric display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Options via Backplane\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I\/O, SynchLink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming Languages\u003c\/td\u003e\n\u003ctd\u003eRelay Ladder Logic (RLL), Structured Text (ST), Function Block Diagram (FBD), Sequential Function Chart (SFC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eCompatibility and Chassis Support\u003c\/h4\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\u003eCompatible Chassis\u003c\/td\u003e\n\u003ctd\u003e1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 (Series B and Series C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Standard Power Supplies\u003c\/td\u003e\n\u003ctd\u003e1756-PA50, 1756-PA72, 1756-PA75, 1756-PB50, 1756-PB72, 1756-PB75, 1756-PC75, 1756-PH75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Redundant Power Supplies\u003c\/td\u003e\n\u003ctd\u003e1756-PA75R, 1756-PB75R, 1756-PSCA2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eIsolation and Wire Category\u003c\/h4\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\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e30V (continuous), Basic Insulation Type, USB port to backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Category\u003c\/td\u003e\n\u003ctd\u003e3 - on USB port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eEnvironmental\u003c\/h4\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\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 Celsius \u0026lt;= Ta \u0026lt;= +60 Celsius (+32 Fahrenheit \u0026lt;= Ta \u0026lt;= +140 Fahrenheit) for Series C Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature (Series B)\u003c\/td\u003e\n\u003ctd\u003e0 Celsius \u0026lt;= Ta \u0026lt;= +50 Celsius (+32 Fahrenheit \u0026lt;= Ta \u0026lt;= +122 Fahrenheit) for Series B Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNonoperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 Celsius to +85 Celsius (-40 Fahrenheit to +185 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5...95% noncondensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type Rating\u003c\/td\u003e\n\u003ctd\u003eNone (Open style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Code\u003c\/td\u003e\n\u003ctd\u003eT4\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\u003eInterface\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\u003eFront USB Port (Type-B)\u003c\/td\u003e\n\u003ctd\u003eDirect point-to-point connection for Studio 5000 \/ Logix Designer programming, configuration, and diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSD Card Slot\u003c\/td\u003e\n\u003ctd\u003eHouses 1784-SD1 or 1784-SD2 card behind protective cover for nonvolatile project storage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Connector\u003c\/td\u003e\n\u003ctd\u003eConnects to 1756 chassis backplane for system power and inter-module communication\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\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Precaution:\u003c\/strong\u003e Disconnect all system power sources and observe electrostatic discharge (ESD) handling procedures before inserting or removing the controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Inspection:\u003c\/strong\u003e Verify that the 1756 chassis, power supply, and backplane connectors are clean, undamaged, and securely mounted.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Insertion:\u003c\/strong\u003e Align the 1756-L75 controller with the guide rails of any open chassis slot. Slide the controller firmly into the slot until the top and bottom card guides latch securely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCard and ESM Verification:\u003c\/strong\u003e Ensure the 1784-SD1 memory card is fully seated in its card slot before powering up the rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Usage Note:\u003c\/strong\u003e The front USB port is intended solely for temporary programming, troubleshooting, and commissioning. Do not keep a USB cable permanently connected in hazardous locations.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eConfiguration and Maintenance Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoftware Compatibility:\u003c\/strong\u003e Program and configure the controller using Rockwell Automation Studio 5000 Logix Designer application software. Ensure the controller firmware matches the Studio 5000 project major revision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParameter Backup:\u003c\/strong\u003e Load the completed application code into nonvolatile memory (1784-SD1) through Logix Designer to ensure automatic recovery upon complete loss of system power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Updates:\u003c\/strong\u003e Perform firmware updates over the front USB interface or via an EtherNet\/IP connection using ControlFLASH or ControlFLASH Plus software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Storage Maintenance:\u003c\/strong\u003e Because the 1756-L75 utilizes an embedded Energy Storage Module, routine lithium battery maintenance and scheduled replacements are not required.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53724159869291,"sku":"1756-L75","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/1756-L75_001_1200x1200_f5161187-a3f9-4b46-bd90-7f43a50df517.jpg?v=1786715320","url":"https:\/\/www.plcprotech.com\/it\/products\/allen-bradley-1756-l75-controllogix-5570-controller","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}