{"product_id":"allen-bradley-1756-l1m3-controllogix-5550-controller-processor","title":"Allen-Bradley 1756-L1M3 ControlLogix 5550 Controller Processor","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1756-L1M3 is a legacy ControlLogix 5550 controller processor designed for demanding industrial automation and control applications. Built on the scalable ControlLogix platform, this module provides reliable execution of user control programs, handling discrete, analog, motion, and drive control tasks across a unified backplane. It features an open enclosure design and includes 2 MB of onboard expansion memory to accommodate moderate control applications.\u003c\/p\u003e\n\u003cp\u003eAs part of the established ControlLogix architecture, the 1756-L1M3 integrates seamlessly into standard 1756 chassis slots, drawing power directly from the backplane. It relies on standard serial communication cabling options, such as the 1756-CP3 or 1747-CP3 cables, for initial configuration and programming access. The controller requires the 1756-BA1 lithium battery for maintaining volatile memory during power loss conditions.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eControlLogix 5550 processor architecture for multi-discipline control applications\u003c\/li\u003e\n  \u003cli\u003eEquipped with 2 MB of expansion memory for application logic and data storage\u003c\/li\u003e\n  \u003cli\u003eOperates natively within standard 1756 ControlLogix chassis environments\u003c\/li\u003e\n  \u003cli\u003eCompatible with 1756-CP3 and 1747-CP3 serial communication and programming cables\u003c\/li\u003e\n  \u003cli\u003eRequires 1756-BA1 lithium battery for backup power retention\u003c\/li\u003e\n  \u003cli\u003eStandard backplane power consumption profile: 120 mA at 5V DC and 2 mA at 24V DC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDiscrete manufacturing and assembly lines\u003c\/li\u003e\n  \u003cli\u003eContinuous process control and monitoring systems\u003c\/li\u003e\n  \u003cli\u003eBatch processing in chemical and pharmaceutical plants\u003c\/li\u003e\n  \u003cli\u003ePower generation and distribution automation\u003c\/li\u003e\n  \u003cli\u003eLegacy system maintenance and spare parts replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\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\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eControlLogix Controller Processor\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eExact Model\u003c\/td\u003e\n      \u003ctd\u003e1756-L1M3\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Family\u003c\/td\u003e\n      \u003ctd\u003eControlLogix 5550\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMemory Capacity\u003c\/td\u003e\n      \u003ctd\u003e2 MB\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBackplane Current Draw\u003c\/td\u003e\n      \u003ctd\u003e120 mA @ 5V DC, 2 mA @ 24V DC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Dissipation\u003c\/td\u003e\n      \u003ctd\u003e4.1 W max. @ 60 degC (140 degF)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd\u003e0 to 60 degC (32 to 140 degF)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCompatible Battery\u003c\/td\u003e\n      \u003ctd\u003e1756-BA1 lithium battery\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProgramming Cables\u003c\/td\u003e\n      \u003ctd\u003e1756-CP3, 1747-CP3\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEnclosure Type\u003c\/td\u003e\n      \u003ctd\u003eOpen\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCountry of Origin\u003c\/td\u003e\n      \u003ctd\u003eUnited States\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eConnections \/ Interfaces\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L1M3 features a front-accessible serial communication port used for connection to programming terminals or configuration devices. It installs directly into any available slot in a 1756 ControlLogix chassis, where it interfaces with the system backplane for power and communication with other I\/O and specialty modules.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure power to the 1756 ControlLogix chassis is turned off before inserting or removing the 1756-L1M3 processor module. Slide the module smoothly into the designated chassis slot, making sure the backplane connectors align properly, and secure it using the top and bottom retaining screws. Connect the appropriate programming cable to the front port for configuration, and ensure the 1756-BA1 backup battery is securely installed if memory retention during power cycles is required.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53770308485483,"sku":"1756-L1M3","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/1756-L1M3_1200x1200_425f1bcf-c22c-49dc-b52c-4295b97ae0d8.jpg?v=1787740929","url":"https:\/\/www.plcprotech.com\/it\/products\/allen-bradley-1756-l1m3-controllogix-5550-controller-processor","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}