{"product_id":"1756-l81es","title":"1756-L81ES","description":"\u003cp\u003eThe Allen-Bradley 1756-L81ES GuardLogix 5580 Safety Controller is a compact, high-performance safety PLC designed for applications that require integrated standard control and certified safety. As part of the ControlLogix GuardLogix 5580 platform, this controller combines deterministic performance with robust EtherNet\/IP connectivity for modern automation architectures.\u003c\/p\u003e\n\u003cp\u003eThe 1756-L81ES provides 3 MB of standard user memory and 1.5 MB of dedicated safety memory, enabling concurrent execution of control and safety logic. It supports high I\/O scalability—up to 128,000 discrete I\/O points and 4,000 analog I\/O points—making it suitable for machine-level and system-level control with growing I\/O demands.\u003c\/p\u003e\n\u003cp\u003eBuilt-in EtherNet\/IP and USB interfaces simplify commissioning, diagnostics, and maintenance. Ethernet communication supports 10\/100\/1000 Mbps, while the USB port operates at 12 Mbps for programming and service tasks.\u003c\/p\u003e\n\u003ch3\u003eTechnical Details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eGuardLogix 5580 Safety Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1756-L81ES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e3 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Memory\u003c\/td\u003e\n\u003ctd\u003e1.5 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNon-Volatile Memory\u003c\/td\u003e\n\u003ctd\u003e2 GB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Discrete 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\u003eBuilt-in Communication\u003c\/td\u003e\n\u003ctd\u003eUSB, EtherNet\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Communication Speed\u003c\/td\u003e\n\u003ctd\u003e10 \/ 100 \/ 1000 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Communication Speed\u003c\/td\u003e\n\u003ctd\u003e12 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Ethernet Nodes\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Connections (via modules)\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP, TCP\/IP, ControlNet (module-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e6.2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.94 lbs (0.43 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e889508112282\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Allen Bradley","offers":[{"title":"Original Packaging","offer_id":50020030677225,"sku":"2093-AMP2","price":5800.0,"currency_code":"USD","in_stock":true},{"title":"Marci Hardware Packaging","offer_id":50020030709993,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"Refurbished","offer_id":50020030742761,"sku":null,"price":3429.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0775\/2990\/7433\/files\/Untitled_design_-_2026-01-15T140749.999.png?v=1768466292","url":"https:\/\/marcinetworkhardware.com\/products\/1756-l81es","provider":"Marci Network Hardware","version":"1.0","type":"link"}