{"product_id":"1756-l1m1-allen-bradley-controllogix-processor-module-buy-today","title":"1756-L1M1 Allen-Bradley ControlLogix Processor Module | Buy Today","description":"\u003ch3\u003e\u003cstrong\u003eAllen-Bradley \u003cstrong\u003e1756-L1M1\u003c\/strong\u003e \u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1756-controllogix\"\u003eControlLogix\u003c\/a\u003e Controller Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley \u003cstrong\u003e1756-L1M1\u003c\/strong\u003e represents a foundational processor module within the trusted ControlLogix 5550 series architecture, engineered to manage deterministic control loops in complex automated systems. Operating within standard open-style chassis slots, this processor provides a balance of dedicated user logic memory and I\/O tracking performance while weighing a mere 0.35 kg. Global PLC Spare HUB's Insight underscores this controller for its resilient environmental shielding, strict ESD and RF immunity performance, and reliable battery-backed operational continuity for legacy discrete manufacturing frameworks.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eModel \u003cstrong\u003e1756-L1M1\u003c\/strong\u003e Configuration \u0026amp; Technical Architecture\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer \u0026amp; Brand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series \u0026amp; Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eControlLogix 5550 Series Processor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExact Catalog Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1756-L1M1\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Allocation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500 KB data\/logic memory plus 150 KB I\/O memory architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane Current Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e950 mA at 5.1 VDC and 20 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower \u0026amp; Thermal Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.33 W total module power; 4.6 W power dissipation; 15.6 BTU\/hr thermal output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental Tolerances\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOperating Temp: 0°C to 60°C; Storage Temp: -40°C to 85°C; 5% to 95% non-condensing humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical \u0026amp; EMC Resilience\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 V continuous isolation; withstands 500 V for 60s; 6 kV contact and 8 kV air ESD immunity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eDiagnostic Capabilities \u0026amp; System Integrity\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdvanced electronic noise immunity featuring 10V\/m radiated RF protection and comprehensive EFT\/B surge suppression on power and communication ports.\u003c\/li\u003e\n\u003cli\u003eBuilt-in low-voltage and battery monitoring flags that instantly report backup power health via the 1756-BA1 lithium cell slot.\u003c\/li\u003e\n\u003cli\u003eRigorous physical shock and vibration endurance rated for 30 G operating shock and up to 500 Hz vibration acceleration.\u003c\/li\u003e\n\u003cli\u003eDirect serial diagnostic link compatibility via category 3 1756-CP3 communication cabling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatible Hardware \u0026amp; Industrial Application Sectors\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAllen-Bradley 1756 ControlLogix chassis racks and power supply assemblies.\u003c\/li\u003e\n\u003cli\u003eReplacement terminal blocks including 1756-TBCH and 1756-TBS6H wiring modules.\u003c\/li\u003e\n\u003cli\u003eAutomotive assembly line discrete manufacturing and material handling cells.\u003c\/li\u003e\n\u003cli\u003eContinuous process batching plants and legacy municipal water treatment control panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackaging, Warranty \u0026amp; Logistics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eElectrostatic discharge (ESD) protective industrial packaging designed for safe component transport.\u003c\/li\u003e\n\u003cli\u003eComprehensive 12-month standard warranty protecting against structural and manufacturing defects.\u003c\/li\u003e\n\u003cli\u003eExpedited 24-48 hour order processing and dispatch window.\u003c\/li\u003e\n\u003cli\u003eGlobal shipping capabilities fulfilled via reliable premium carriers including FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the specific backup battery requirement for the \u003cstrong\u003e1756-L1M1\u003c\/strong\u003e controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt requires a designated 0.59-gram lithium replacement battery strictly cataloged as the 1756-BA1.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this controller handle severe industrial electrical noise and surges?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt provides robust electrical protection featuring 6 kV contact ESD immunity, 8 kV air discharge protection, and specialized EFT\/B filtering on power ports.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat programming cable is verified for connecting to this processor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit relies exclusively on the category 3 rated 1756-CP3 serial communication cable for configuration tasks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat engineering guidelines should be followed when mounting this module in a high-vibration rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnsure the chassis is securely bolted to a rigid sub-panel, as the controller is rated to withstand a maximum peak vibration acceleration of 2.0 G up to 500 Hz.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is understanding backplane current consumption critical during system expansion?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou must verify that your 1756 power supply can adequately deliver the required 950 mA at 5.1V and 20 mA at 24V drawn by this specific processor module.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013898625206,"sku":"1756-L1M1","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1756-L1M12.jpg?v=1787734268","url":"https:\/\/www.plcsparehub.com\/products\/1756-l1m1-allen-bradley-controllogix-processor-module-buy-today","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}