{"product_id":"allen-bradley-1756-l1-logix5550-processor-module","title":"Allen-Bradley 1756-L1 Logix5550 Processor Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1756-L1 is a foundational processor module within the ControlLogix (Logix5550) automation family. As a chassis-based controller, it is designed to reside in any slot of a 1756 ControlLogix chassis, facilitating seamless communication with I\/O modules and other controllers across the ControlBus backplane. This module provides a modular and flexible control solution for various industrial automation tasks.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular Design:\u003c\/strong\u003e Occupies a single slot in any standard 1756 ControlLogix chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Expansion:\u003c\/strong\u003e Features 64 KB of built-in user memory, with support for expansion via 1756-M1 (128 KB), 1756-M2 (512 KB), or 1756-M3 (2 MB) memory modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Retention:\u003c\/strong\u003e Supports 1756-BA1 or 1756-BA2 lithium battery modules to maintain volatile memory during power-down cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Communication:\u003c\/strong\u003e High-speed data exchange via the ControlLogix backplane.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\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\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eControlLogix (Logix5550)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eProcessor \/ Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e64 KB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5V DC)\u003c\/td\u003e\n\u003ctd\u003e120 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24V DC)\u003c\/td\u003e\n\u003ctd\u003e2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e4.1 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e30V (Continuous)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Width\u003c\/td\u003e\n\u003ctd\u003e1 Slot\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\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Protection:\u003c\/strong\u003e Always use a grounded wrist strap when handling the module to prevent electrostatic discharge damage to internal components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Down:\u003c\/strong\u003e Ensure the chassis power is disconnected before inserting or removing the processor module from the backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Placement:\u003c\/strong\u003e The 1756-L1 can be installed in any slot of a 1756 chassis; ensure the module is fully seated and the top\/bottom latches are secured.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Installation:\u003c\/strong\u003e Install the compatible lithium battery module (1756-BA1 or 1756-BA2) prior to operation to ensure program retention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Maintain adequate airflow within the cabinet to ensure the module operates within its specified temperature range of 0 to 60 degC.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eDoes this module include a memory card?\u003c\/h3\u003e\u003cp\u003eNo, the 1756-L1 comes with 64 KB of built-in memory. External memory expansion modules (1756-M1, 1756-M2, or 1756-M3) must be purchased separately if additional memory is required.\u003c\/p\u003e\u003ch3\u003eIs this module compatible with modern ControlLogix chassis?\u003c\/h3\u003e\u003cp\u003eYes, the 1756-L1 is compatible with standard 1756 ControlLogix chassis, provided the system architecture supports the specific Logix5550 processor generation.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":50783846531324,"sku":"1756-L1","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_5279bc36-3cd4-4048-9768-1a6f98edc24f.jpg?v=1785498388","url":"https:\/\/www.electronicplc.com\/ar\/products\/allen-bradley-1756-l1-logix5550-processor-module","provider":"Electronic PLC","version":"1.0","type":"link"}