{"product_id":"allen-bradley-1756-l1m2-industrial-automation-module-heavy-duty","title":"Allen-Bradley 1756-L1M2 Industrial Automation Module - Heavy-Duty","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1756-L1M2 is a ControlLogix 5550 processor module designed for demanding industrial automation environments. This Industrial Automation Module provides 1 MB of user memory (without nonvolatile memory) and supports local and remote I\/O control across DeviceNet, ControlNet, and Universal Remote I\/O networks. With an open-style enclosure rating and a compact footprint, the 1756-L1M2 integrates seamlessly into existing control systems.\u003c\/p\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 MB User Memory\u003c\/strong\u003e – Ample space for control logic and data tables.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Network Support\u003c\/strong\u003e – Communicates over DeviceNet, ControlNet, and Universal Remote I\/O.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Environmental Ratings\u003c\/strong\u003e – Operates from 0 to 60 °C, with storage from -40 to 85 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Immunity\u003c\/strong\u003e – Withstands ESD discharges up to 8 kV and conducted RF interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Enclosure\u003c\/strong\u003e – Simplifies mounting and service access.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1756-L1M2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eProcessor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Memory\u003c\/td\u003e\n\u003ctd\u003e1 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003eOpen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e30 Volts Continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e32-140 °F (0-60 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Operating Current\u003c\/td\u003e\n\u003ctd\u003e2 mA at 10 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Operating Current\u003c\/td\u003e\n\u003ctd\u003e3.5 mA at 30 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input Current, Off-State\u003c\/td\u003e\n\u003ctd\u003e1.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation (Max)\u003c\/td\u003e\n\u003ctd\u003e4.1 Watts at 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current at 5 V\u003c\/td\u003e\n\u003ctd\u003e120 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current at 24 V\u003c\/td\u003e\n\u003ctd\u003e2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemovable Terminal Blocks\u003c\/td\u003e\n\u003ctd\u003e1756-TBCH, 1756-TBS6H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e10612598180988\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe 1756-L1M2 excels in applications requiring reliable, high-speed control across distributed I\/O. Typical use cases include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing Lines\u003c\/strong\u003e – Coordinating multiple workstations and conveyors via ControlNet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Handling\u003c\/strong\u003e – Managing sortation systems and automated storage with DeviceNet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Control\u003c\/strong\u003e – Supervising batch processes with Universal Remote I\/O.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eMount the 1756-L1M2 in a suitable ControlLogix chassis, ensuring proper backplane seating. Use the compatible programming cables 1756-CP3 or 1747-CP3 for configuration. Always observe the isolation voltage limits (30 V continuous, 50 V for up to 60 seconds) and avoid exceeding the operating temperature range. For battery replacement, use only the 1756-BA1 lithium battery (0.59 g).\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRegularly inspect the module for dust accumulation and ensure ventilation paths remain clear. Verify that the backplane connections are tight and free of corrosion. The 1756-L1M2 handles vibration up to 2 G (10-500 Hz) and shock up to 30 G (11 ms), but prolonged exposure beyond these limits may reduce lifespan. Keeping the unit within the specified humidity range (5-95% non-condensing) prevents condensation-related failures.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThis processor integrates with ControlLogix chassis and supports DeviceNet, ControlNet, and Universal Remote I\/O networks. It works with the 1756-TBCH and 1756-TBS6H terminal blocks, and the 1756-CP3 and 1747-CP3 programming cables. The 1756-BA1 battery is the only approved replacement.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify that the 1756-L1M2 meets your memory and network requirements. Consider whether you need nonvolatile memory – if so, look for a different model. Check that your programming cable and terminal blocks are compatible. PLC Source PRO offers genuine Allen-Bradley 1756-L1M2 modules with verified specifications and reliable sourcing.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44434977751139,"sku":"1756-L1M2","price":211.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1756-2WS_80760b06-aa50-491e-8fb0-5df6c8331fe5.jpg?v=1785781247","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1756-l1m2-industrial-automation-module-heavy-duty","provider":"PLC Source PRO","version":"1.0","type":"link"}