{"product_id":"allen-bradley-1756-l73sk-controllogix-guardlogix-controller","title":"Allen-Bradley 1756-L73SK ControlLogix GuardLogix Controller","description":"\u003cp\u003eConfigured for safety-critical logic processing in industrial control networks, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-L73SK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e1756-L73SK\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGuardLogix Controller) provides direct physical and electrical execution of safety instructions via a dual-processor architecture within the ControlLogix backplane environment.\u003c\/p\u003e\n\u003ch3\u003eCatalog Designation and Series Identification\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L73SK belongs to the ControlLogix series, specifically engineered with \"K\" suffix conformal coating to provide protection against harsh environmental contaminants. It functions as a safety-rated controller that manages both standard and safety-related tasks within a unified control architecture, utilizing internal memory to facilitate rapid instruction execution and deterministic I\/O updates.\u003c\/p\u003e\n\u003ch3\u003eHardware Technical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-L73SK\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.26 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.5 x 14.3 x 14.5 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRefer to ControlLogix system manual\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eUser Memory\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 MB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eI\/O Memory\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.98 MB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax I\/O\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e128,000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax Analog I\/O\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4,000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax Digital I\/O\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e128,000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eIsolation Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30 Volts Continuous\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCurrent Draw (1.2 VDC)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCurrent Draw (5.1 VDC)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e800 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eThermal Dissipation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8.5 BTU per hour\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDeterministic Network and Control Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L73SK supports integration into EtherNet\/IP deterministic networks, enabling synchronized data exchange between the controller and remote I\/O nodes. The firmware architecture ensures high-speed backplane bus communication, allowing for scalable I\/O density management. Users must ensure that the backplane power supply capacity is sufficient to support the module's 800 mA current draw on the 5.1 VDC rail to maintain operational stability. Compatibility with flash-updateable firmware allows for the implementation of safety instruction set revisions within the Studio 5000 environment.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e1 x 1756-L73SK GuardLogix Controller module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x 1756-BA1 battery assembly for memory retention.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Product documentation and compliance instruction set.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePhysical Mounting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eInsert the module into any available slot in a ControlLogix chassis, ensuring proper engagement with the backplane connectors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSecure the module using the top and bottom mounting screws to minimize mechanical vibration and ensure a solid chassis ground connection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical Termination and Grounding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm that the power supply for the chassis is isolated before installing or removing the module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUse shielded communication cabling for EtherNet\/IP connections to prevent electromagnetic interference.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain clearance around the module to allow for adequate airflow and heat dissipation as specified in the thermal profiles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the primary function of the conformal coating?\u003c\/p\u003e\n\u003cp\u003eThe \"K\" suffix indicates the module is conformal coated to protect internal circuitry from moisture, dust, and corrosive gases in harsh industrial environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan this module be hot-swapped?\u003c\/p\u003e\n\u003cp\u003eYes, the controller supports removal and insertion under power (RIUP), allowing for maintenance without stopping the entire backplane operation, provided specific safety protocols are followed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the 8 MB user memory dedicated to safety tasks?\u003c\/p\u003e\n\u003cp\u003eThe 8 MB of user memory is shared between standard control logic and safety logic; users must partition the memory according to the specific safety and functional requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the isolation voltage specified?\u003c\/p\u003e\n\u003cp\u003eThe 30 V isolation rating refers to the continuous voltage isolation between the backplane and the internal logic circuits, protecting against transient electrical noise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat happens if the internal battery fails?\u003c\/p\u003e\n\u003cp\u003eThe battery maintains the real-time clock and volatile memory during power loss; failure requires replacement to prevent loss of program data during unexpected power cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this controller support redundant configurations?\u003c\/p\u003e\n\u003cp\u003eWhile the 1756-L73SK is a singular unit, it is designed for integration into systems where redundant I\/O configurations are managed via network protocols.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhy is the thermal dissipation 8.5 BTU\/hour?\u003c\/p\u003e\n\u003cp\u003eThis represents the power converted to heat during operation. It is a low-energy profile, but requires the chassis cabinet to have active or passive ventilation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow is the firmware updated?\u003c\/p\u003e\n\u003cp\u003eFirmware is updated via the USB port on the front of the module or over the network using the ControlFlash utility within the programming software environment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066418319533,"sku":"1756-L73SK","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1756-L73SK.jpg?v=1782460418","url":"https:\/\/www.maxwellplc.com\/ru\/products\/allen-bradley-1756-l73sk-controllogix-guardlogix-controller","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}