{"product_id":"allen-bradley-1756-l72s-k-guardlogix-5570-safety-controller","title":"Allen-Bradley 1756-L72S\/K GuardLogix 5570 Safety Controller","description":"\u003ch2\u003eAllen-Bradley 1756-L72S\/K GuardLogix 5570 Safety Controller\u003c\/h2\u003e\n\u003cp\u003eConfigured for safety task execution and standard control processing in ControlLogix automation systems, the \u003cstrong\u003eAllen-Bradley 1756-L72S\/K\u003c\/strong\u003e (\u003cstrong\u003e1756-L72S\u003c\/strong\u003e GuardLogix Safety Controller) provides processor-based execution for integrated safety logic, EtherNet\/IP communication, and I\/O management within GuardLogix 5570 platforms.\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-L72S\/K\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\u003e0.25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e2.5 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Type\u003c\/td\u003e\n\u003ctd\u003eGuardLogix 5570 Safety Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e4 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnboard Storage\u003c\/td\u003e\n\u003ctd\u003e1 GB SD card expandable storage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interfaces\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP, ControlNet, DeviceNet, DH+, Remote I\/O, SynchLink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Interface\u003c\/td\u003e\n\u003ctd\u003eProgramming only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Digital I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e128,000 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Analog I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003e4,000 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Certification\u003c\/td\u003e\n\u003ctd\u003eTÜV certified, SIL 3, PLe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003eUp to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Rating\u003c\/td\u003e\n\u003ctd\u003eIEC 60068-2-27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Rating\u003c\/td\u003e\n\u003ctd\u003eIEC 60068-2-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eConformal coating for harsh environment protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and GuardLogix Safety Processing Architecture\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L72S\/K operates as a GuardLogix 5570 series safety controller combining standard control execution and safety task processing within a single processor platform. The safety-enabled architecture supports TÜV-certified SIL 3 and PLe applications through dedicated safety instruction execution and coordinated communication between standard and safety tasks.\u003c\/p\u003e\n\u003cp\u003eThe conformal coating option indicated by the K suffix provides additional protection of electronic assemblies against environmental contaminants such as dust, humidity, and corrosive exposure. The controller supports integration with Studio 5000 Logix Designer for configuration, programming, and safety project management.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1756-L72S\/K support both standard and safety control tasks?\u003cbr\u003eA: Yes. The controller executes standard Logix tasks and safety tasks within the GuardLogix 5570 controller architecture.\u003c\/p\u003e\n\u003cp\u003eQ: What communication networks are supported by this processor?\u003cbr\u003eA: The processor supports EtherNet\/IP, ControlNet, DeviceNet, DH+, Remote I\/O, and SynchLink communication interfaces through compatible ControlLogix communication modules.\u003c\/p\u003e\n\u003cp\u003eQ: What is the function of the K suffix on this model?\u003cbr\u003eA: The K suffix identifies conformal coating applied to the controller electronics for increased environmental protection in industrial installations.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-L72S\/K in a compatible ControlLogix chassis with correct backplane seating and module locking engagement. Verify that the power supply and chassis grounding system comply with ControlLogix installation requirements.\u003c\/p\u003e\n\u003cp\u003eRoute communication cables separately from high-voltage power conductors to reduce electrical interference. Use appropriate cable shielding and connect shields according to industrial grounding practices. Confirm that safety configuration, firmware compatibility, and Studio 5000 project settings match the installed controller revision before commissioning.\u003c\/p\u003e\n\u003cp\u003eAvoid exposing the module to conductive contamination, excessive moisture, or mechanical stress beyond specified environmental limits.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43617010909274,"sku":"1756-L72S\/K","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-L722.jpg?v=1778743561","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-l72s-k-guardlogix-5570-safety-controller","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}