{"product_id":"allen-bradley-1756-l55m23-controllogix-processor-module","title":"Allen-Bradley 1756-L55M23 ControlLogix Processor Module","description":"\u003ch1\u003eAllen-Bradley 1756-L55M23 ControlLogix Processor Module\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-L55M23\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-L55\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProcessor Module, operates as a dedicated hardware component for executing control logic, data processing, and I\/O management within ControlLogix backplane systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-L55M23\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.31 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.3 cm x 14.7 cm x 14.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1.23 A at 5 VDC backplane current; 14 mA at 24 VDC backplane current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\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\u003eProcessor Family\u003c\/td\u003e\n\u003ctd\u003eLogix5555\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRAM\u003c\/td\u003e\n\u003ctd\u003e1.5 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNonvolatile Memory\u003c\/td\u003e\n\u003ctd\u003e1.5 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e128,000 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Analog I\/O\u003c\/td\u003e\n\u003ctd\u003e4,000 input channels; 2,000 output channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgram Scan Time\u003c\/td\u003e\n\u003ctd\u003e0.08 milliseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Rating\u003c\/td\u003e\n\u003ctd\u003e10-500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5-95 percent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Compatibility\u003c\/td\u003e\n\u003ctd\u003e1756-BA1 or 1756-BATM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eControlLogix Backplane Communication and Firmware Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L55M23 processor module communicates through the ControlLogix backplane bus for coordinated execution of controller tasks, I\/O data exchange, and module diagnostics. The processor supports firmware flash compatibility within the ControlLogix platform and maintains application execution using 1.5 MB RAM with 1.5 MB nonvolatile memory storage. The module provides deterministic controller operation through scheduled task execution and backplane data handling.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What memory configuration is provided by the 1756-L55M23 processor module?\u003cbr\u003eA: The module provides 1.5 MB RAM and 1.5 MB nonvolatile memory for application storage and controller data retention.\u003c\/p\u003e\n\u003cp\u003eQ: What are the specified backplane current requirements for this processor module?\u003cbr\u003eA: The module requires 1.23 A from the 5 VDC backplane supply and 14 mA from the 24 VDC backplane supply.\u003c\/p\u003e\n\u003cp\u003eQ: Which battery models are compatible with the 1756-L55M23?\u003cbr\u003eA: The processor module supports the 1756-BA1 or 1756-BATM battery assemblies.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-L55M23 processor module in an appropriate ControlLogix chassis slot with correct backplane seating. Verify that the module connector is fully engaged before applying power.\u003c\/p\u003e\n\u003cp\u003eMaintain proper cabinet grounding and use suitable shield termination practices for connected communication and I\/O wiring. Route signal cables separately from high-current power conductors to reduce electrical interference.\u003c\/p\u003e\n\u003cp\u003eBefore firmware updates or controller replacement procedures, verify application compatibility, memory configuration, and controller revision requirements. Follow standard industrial panel ventilation and environmental protection practices according to the installed system design.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43612100657242,"sku":"1756-L55M23","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-L55M232.jpg?v=1783405773","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-l55m23-controllogix-processor-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}