{"product_id":"allen-bradley-1756-l71k-controllogix-5571-processor-module","title":"Allen-Bradley 1756-L71K ControlLogix 5571 Processor Module","description":"\u003ch2\u003eAllen-Bradley 1756-L71K ControlLogix 5571 Processor Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-L71K\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-L71K\u003c\/strong\u003e Processor Module, operates as a dedicated hardware component for executing programmable logic control and data processing tasks within ControlLogix industrial automation networks.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-L71K\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\u003e0.51 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e2.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eProcessor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Series\u003c\/td\u003e\n\u003ctd\u003eLogix 5571\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e2 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Memory\u003c\/td\u003e\n\u003ctd\u003e0.98 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Digital I\/O\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 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e800 mA at 5.1 V DC, 5 mA at 1.2 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e8.5 BTU per hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e30 V continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eConformal coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eController Processor Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFirmware Flash Compatibility and ControlLogix Network Processing\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L71K processor module operates on the ControlLogix 5571 platform and provides controller execution functions for distributed automation applications. The conformal coated construction supports installation requirements where additional environmental protection against contaminants is specified.\u003c\/p\u003e\n\u003cp\u003eThe module supports I\/O density scaling through a maximum of 128,000 digital I\/O points and 4,000 analog I\/O points. Firmware flash compatibility must be verified between processor revision, chassis modules, communication interfaces, and application software before configuration or replacement procedures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What memory capacity is available in the 1756-L71K processor module?\u003cbr\u003eA: The module provides 2 MB user memory and 0.98 MB I\/O memory for application execution and controller data handling.\u003c\/p\u003e\n\u003cp\u003eQ: What is the power requirement of the 1756-L71K?\u003cbr\u003eA: The processor module requires 800 mA at 5.1 V DC and 5 mA at 1.2 V DC, with a power dissipation rating of 2.5 W.\u003c\/p\u003e\n\u003cp\u003eQ: What type of environmental protection is included in the 1756-L71K?\u003cbr\u003eA: The 1756-L71K includes conformal coating and uses an open-style enclosure configuration.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-L71K in a compatible ControlLogix chassis with sufficient backplane power capacity. Confirm module seating, chassis grounding, and power supply loading before system startup.\u003c\/p\u003e\n\u003cp\u003eMaintain separation between communication wiring and high-voltage conductors to reduce electrical interference. Use appropriate shielding and grounding methods for connected communication and field wiring systems.\u003c\/p\u003e\n\u003cp\u003eBefore downloading controller applications, verify firmware revision compatibility, memory allocation, chassis configuration, and I\/O module compatibility. Confirm that conformal coated hardware requirements match the installation environment.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43612705488986,"sku":"1756-L71K","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-L71B1.jpg?v=1783410846","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-l71k-controllogix-5571-processor-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}