{"product_id":"1756-l81es-allen-bradley-controllogix-guardlogix-5580-safety-controller","title":"1756-L81ES | Allen-Bradley | ControlLogix GuardLogix 5580 Safety Controller","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-L81ES\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-performance SIL 3\/PLe capable processor within the ControlLogix 5580 family. This GuardLogix controller provides a unified solution for both standard and safety-critical control tasks, executing complex safety logic alongside general automation processes. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, ensuring your system benefits from the high-speed 1Gbps Ethernet port and the latest security firmware essential for modern smart manufacturing environments.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eUser Memory\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3 MB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSafety Memory\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 MB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNonvolatile Memory\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 GB (Ships with secure SD card)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEthernet Speed\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 \/ 100 \/ 1000 Mbps (Gigabit)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum I\/O Points\u003c\/strong\u003e\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\u003e\u003cstrong\u003eMaximum Ethernet Nodes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSafety Languages\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLadder Diagram (LD) Only\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStandard Languages\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLD, ST, FBD, SFC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6.2 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.94 lbs (0.43 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Safety and Motion:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1756-L81ES eliminates the need for a separate safety partner for many SIL 2 applications, reducing chassis space and hardware costs. It manages high-speed integrated motion over EtherNet\/IP, allowing engineers to synchronize safety functions directly with servo drive performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGigabit Performance for Data-Intensive Loads:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe onboard 1Gbps Ethernet port facilitates rapid data exchange between the CPU and up to 100 nodes. This high bandwidth prevents network bottlenecks when executing complex safety interlocking across distributed I\/O systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStrict Safety Logic Enforcement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTo maintain the highest integrity, the controller restricts safety tasks to Ladder Diagram (LD) only. This ensures that safety logic remains easy to audit and verify during third-party safety inspections or risk assessments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnergy-Efficient Thermal Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a low power dissipation of 6.2W, the 1756-L81ES minimizes heat buildup within the ControlLogix chassis. This design extends the lifespan of adjacent modules and allows for reliable operation in enclosures where airflow is limited.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use Structured Text (ST) for safety logic in the 1756-L81ES?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA: No. While the 5580 GuardLogix supports multiple languages for standard tasks, safety tasks strictly require Ladder Diagram (LD). This limitation ensures maximum visibility and adherence to safety programming standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this unit a \"Refurbished\" or \"Used\" surplus module?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA: Absolutely not. We guarantee this 1756-L81ES is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e. It ships in the manufacturer’s original factory-sealed box, which is critical for safety-rated components where operational history and component fatigue are major factors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this controller require a Safety Partner module?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA: The 5580 series controllers, such as the 1756-L81ES, provide an \"integrated\" safety solution. For many SIL 2 applications, you do not need a separate safety partner, though high-level SIL 3 requirements may still dictate specific architecture configurations in Studio 5000.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I backup the program without a permanent PC connection?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA: The module includes a 2GB nonvolatile memory card. You can configure the controller to load the program from this SD card automatically upon power-up, ensuring the machine resumes operation immediately after a power cycle or CPU replacement.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52774731481397,"sku":"1756-L81ES","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1756-L81ES.jpg?v=1776837955","url":"https:\/\/www.5gplc.com\/products\/1756-l81es-allen-bradley-controllogix-guardlogix-5580-safety-controller","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}