{"product_id":"1756-l71k-allen-bradley-controllogix-processor-module","title":"1756-L71K Allen-Bradley ControlLogix Processor Module","description":"\u003cp\u003eConfigured for high-speed logic execution and centralized motion processing in ControlLogix industrial controller chassis, the \u003cstrong\u003eAllen-Bradley 1756-L71K\u003c\/strong\u003e (\u003cstrong\u003e1756-L71\u003c\/strong\u003e Processor Module) provides direct physical\/electrical execution. It manages sequence control, user memory structures, and task scheduling across local and distributed I\/O networks.\u003c\/p\u003e\n\u003ch3\u003eCatalog Designation \u0026amp; Part Nomenclature\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1756\u003c\/strong\u003e: ControlLogix chassis-based programmable automation controller hardware platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL71\u003c\/strong\u003e: ControlLogix 5570 controller series with 2 MB user memory capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e: Conformal coating option for protection against harsh chemical and atmospheric environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications \u0026amp; Operating Parameters\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 x 14.4 x 14.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e2.5 W\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 I-O\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Digital I-O\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Analog I-O\u003c\/td\u003e\n\u003ctd\u003e4,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (1.2 VDC)\u003c\/td\u003e\n\u003ctd\u003e5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5.1 VDC)\u003c\/td\u003e\n\u003ctd\u003e800 mA\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\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlace of Shipment\u003c\/td\u003e\n\u003ctd\u003eXiamen, China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Architecture \u0026amp; Network Communication Integration\u003c\/h3\u003e\n\u003cp\u003eThe controller interfaces directly with the chassis backplane bus communication velocity framework, establishing real-time synchronization with local and remote I\/O chassis. Fully integrated into EtherNet\/IP deterministic networks, the module handles high-density I\/O density scaling up to 128,000 total digital signals. Firmware flash compatibility enables seamless field upgrades and consistent project synchronization through Studio 5000 Logix Designer environments.\u003c\/p\u003e\n\u003ch3\u003ePackage Fulfillment Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1756-L71K controller module in anti-static packaging\u003c\/li\u003e\n\u003cli\u003e1 x Key switch assembly for controller mode selection\u003c\/li\u003e\n\u003cli\u003e1 x Printed installation instruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical Insertion \u0026amp; Wiring Standards\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAlign the module card edges with the top and bottom chassis slot guides before sliding firmly until both locking tabs click.\u003c\/li\u003e\n\u003cli\u003eVerify proper chassis frame grounding to a dedicated earth ground bus bar prior to applying control power.\u003c\/li\u003e\n\u003cli\u003eMaintain minimum panel clearances of 50 mm above and below the chassis assembly to preserve convective thermal airflow.\u003c\/li\u003e\n\u003cli\u003eConnect USB configuration cables only to designated front-panel diagnostic ports during maintenance procedures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Hardware Reference FAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the total user memory capacity available for user program storage?\u003c\/p\u003e\n\u003cp\u003eThe module provides 2 MB of dedicated user memory along with an additional 0.98 MB designated for I\/O data structures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this processor support removal and insertion under power (RIUP)?\u003c\/p\u003e\n\u003cp\u003eYes, the module can be safely inserted or removed from the backplane chassis while system power is actively applied.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat amount of backplane current does the unit draw at 5.1 VDC?\u003c\/p\u003e\n\u003cp\u003eThe module draws a maximum of 800 mA from the 5.1 VDC backplane bus rail during standard operating conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the continuous isolation voltage rating for the controller?\u003c\/p\u003e\n\u003cp\u003eThe hardware features a continuous isolation voltage rating of 30 V tested between internal circuitry and backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow many total digital I\/O points can this processor control?\u003c\/p\u003e\n\u003cp\u003eThe processor architecture supports up to 128,000 total digital I\/O points across backplane and networked sub-nets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat functional protection does the \"K\" catalog suffix denote?\u003c\/p\u003e\n\u003cp\u003eThe \"K\" suffix indicates a factory-applied conformal coating designed to protect internal circuits from environmental contaminants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the maximum power dissipation rating of the module?\u003c\/p\u003e\n\u003cp\u003eUnder full operational load, the module dissipates up to 2.5 W of electrical power within the chassis frame.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs external battery power required to maintain user memory during power loss?\u003c\/p\u003e\n\u003cp\u003eNo, 1756-L70 series processors utilize energy storage modules (ESM) to eliminate traditional lithium battery maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066417533101,"sku":"1756-L71K","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1756-L71K_1-1.jpg?v=1787190759","url":"https:\/\/www.maxwellplc.com\/ru\/products\/1756-l71k-allen-bradley-controllogix-processor-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}