{"product_id":"allen-bradley-1756-l81e-cpu-module","title":"Allen-Bradley 1756-L81E CPU Module","description":"\u003cdiv style=\"max-width:100%;margin:0 auto;font-family:Arial,Helvetica,sans-serif;color:#1a1a1a;font-size:15px;line-height:1.6;overflow-wrap:anywhere;\"\u003e\n\u003ch2 style=\"font-size:22px;line-height:1.3;margin:0 0 12px;color:#1a1a1a;\" class=\"desc-model-title\"\u003eAllen-Bradley 1756-L81E ControlLogix 5580 Controller, 3MB User Memory\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 12px;line-height:1.6;\"\u003eThe \u003cstrong\u003eAllen-Bradley 1756-L81E\u003c\/strong\u003e is a ControlLogix 5580 controller from Rockwell Automation Logix5000 platform. It features 3 MB user memory, one integrated Gigabit EtherNet\/IP port, local USB programming port, and a 4-character alpha\/numeric front display. Supports up to 100 EtherNet\/IP devices and maximum 128,000 I\/O points for large-scale discrete, motion and process control applications. Technical data sourced from official Rockwell Automation ControlLogix 5580 datasheet. Supplied by SHLY-PLC, an independent industrial automation distributor; each unit undergoes visual inspection and functional testing before shipment. Contact our team for compatibility verification.\u003c\/p\u003e\n\u003ch2 style=\"font-size:18px;line-height:1.3;margin:22px 0 10px;padding:0 0 6px;border-bottom:2px solid #cc0000;color:#1a1a1a;\"\u003eFeatures\u003c\/h2\u003e\n\u003cul style=\"margin:6px 0 14px 20px;padding:0;\"\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eCatalog Number:\u003c\/strong\u003e 1756-L81E\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eProduct Family:\u003c\/strong\u003e ControlLogix 5580 \/ Logix5000 Controller\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eUser Memory:\u003c\/strong\u003e 3 MB\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eEmbedded Communication:\u003c\/strong\u003e 1 x Gigabit EtherNet\/IP port\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eLocal Port:\u003c\/strong\u003e USB programming port\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eFront Display:\u003c\/strong\u003e 4-character alpha\/numeric LED display\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eMax EtherNet\/IP Devices:\u003c\/strong\u003e 100\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eMaximum I\/O Points:\u003c\/strong\u003e 128,000 total I\/O\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eMax Analog I\/O:\u003c\/strong\u003e 4,000\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eTasks Support:\u003c\/strong\u003e 32 tasks (continuous, periodic, event tasks)\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eNon-Volatile Storage:\u003c\/strong\u003e SD card compatible (1784-SD1 \/ 1784-SD2)\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 6.2 W\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eLifecycle:\u003c\/strong\u003e Active production\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eTypical Use:\u003c\/strong\u003e Factory automation, motion control, process control, assembly lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size:18px;line-height:1.3;margin:22px 0 10px;padding:0 0 6px;border-bottom:2px solid #cc0000;color:#1a1a1a;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cp style=\"font-size:13px;color:#666666;margin:0 0 4px;\"\u003eOfficial Rockwell Automation ControlLogix 5580 Data\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;table-layout:fixed;margin:6px 0 18px;font-size:14px;\"\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#cc0000;color:#ffffff;padding:7px 11px;text-align:left;vertical-align:top;word-break:break-word;font-weight:700;\"\u003eTechnical Specifications\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eCatalog Number\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;vertical-align:top;word-break:break-word;\"\u003e1756-L81E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eSeries\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;vertical-align:top;word-break:break-word;\"\u003eControlLogix 5580\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eUser Memory\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;vertical-align:top;word-break:break-word;\"\u003e3 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eIntegrated Network\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;vertical-align:top;word-break:break-word;\"\u003e1 x Gigabit EtherNet\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eLocal Programming Port\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eMax Total I\/O\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003e128,000 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eMax Analog I\/O\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003e4,000 points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003e6.2 W (21.2 BTU\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eFront Display\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003e4-character alpha\/numeric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eCompatible SD Card\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003e1784-SD1, 1784-SD2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#eef1f4;color:#1a1a1a;padding:6px 11px;font-weight:700;text-align:left;vertical-align:top;word-break:break-word;border-bottom:1px solid #e6e8eb;\"\u003eAgency Certifications\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%;padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003eCertifications\u003c\/td\u003e\n\u003ctd style=\"padding:7px 11px;border-bottom:1px solid #e6e8eb;background:#fafbfc;color:#333333;font-weight:600;text-align:left;vertical-align:top;word-break:break-word;\"\u003ecULus, CE, C-Tick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:13px;line-height:1.5;color:#990000;background:#fef0f0;border-left:3px solid #cc0000;padding:9px 12px;margin:12px 0;\"\u003e\n\u003cstrong\u003eModel note:\u003c\/strong\u003e 1756-L81E is standard ControlLogix 5580 controller, 3MB user memory. Variants: 1756-L81EK (coated), 1756-L81EXT (extreme environment coated), 1756-L81E-NSE (No Stored Energy). Compare memory size: L81E=3MB, L82E=5MB, L83E=10MB, L84E=20MB, L85E=40MB.\u003c\/div\u003e\n\u003ch3 style=\"font-size:15px;line-height:1.4;margin:14px 0 3px;color:#1a1a1a;\"\u003eCompatibility \u0026amp; Cross-References\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;line-height:1.6;\"\u003e1756-L81E works with ControlLogix 1756 chassis, 1756 power supplies, 1756 digital\/analog I\/O modules and communication modules. Programming software: Studio5000 Logix Designer. Supports motion, safety and process control when paired with matching I\/O modules. This listing is provided by an independent industrial automation distributor; brand names and part numbers are used for product identification only.\u003c\/p\u003e\n\u003ch2 style=\"font-size:18px;line-height:1.3;margin:22px 0 10px;padding:0 0 6px;border-bottom:2px solid #cc0000;color:#1a1a1a;\"\u003eApplications\u003c\/h2\u003e\n\u003cul style=\"margin:6px 0 14px 20px;padding:0;\"\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003eDiscrete factory automation and assembly lines\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003eMulti-axis motion control systems\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003ePackaging, material handling and conveyor systems\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003eProcess control, plant-wide Logix5000 architecture\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003eUpgrade or spare replacement for existing ControlLogix 5580 systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size:18px;line-height:1.3;margin:22px 0 10px;padding:0 0 6px;border-bottom:2px solid #cc0000;color:#1a1a1a;\"\u003eWarranty\u003c\/h2\u003e\n\u003cul style=\"margin:6px 0 14px 20px;padding:0;\"\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e Active production, new \u0026amp; surplus stock available; contact us for real-time stock status.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eInspection \u0026amp; testing:\u003c\/strong\u003e each unit is visually inspected and functionally checked before packing.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 6px;line-height:1.55;\"\u003e\n\u003cstrong\u003eDelivery:\u003c\/strong\u003e orders are processed within 2-4 business days after payment confirmation; standard worldwide delivery is about 5-8 business days, express shipping available, orders over $500 ship free.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-month seller warranty provided by SHLY-PLC. See our \u003ca href=\"\/pages\/return-policy\"\u003eReturn Policy\u003c\/a\u003e for coverage and claims.\u003c\/p\u003e\n\u003cdiv style=\"font-size:13px;line-height:1.5;color:#555555;background:#f7f7f8;border-left:3px solid #cc0000;padding:9px 12px 0 12px;margin:12px 0;\"\u003eIndependent supplier: Allen-Bradley part 1756-L81E is supplied by SHLY-PLC, an independent industrial automation distributor. Brand names and part numbers are used for product identification and remain the property of their respective owners; this listing is not affiliated with, sponsored or endorsed by the manufacturer.\u003c\/div\u003e\n\u003ch2 style=\"font-size:18px;line-height:1.3;margin:22px 0 10px;padding:0 0 6px;border-bottom:2px solid #cc0000;color:#1a1a1a;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 style=\"font-size:15px;line-height:1.4;margin:14px 0 3px;color:#1a1a1a;\"\u003eQ: What is Allen-Bradley 1756-L81E?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;line-height:1.6;\"\u003eA: ControlLogix 5580 Logix5000 PLC controller with 3MB user memory, built-in Gigabit EtherNet\/IP and USB programming port.\u003c\/p\u003e\n\u003ch3 style=\"font-size:15px;line-height:1.4;margin:14px 0 3px;color:#1a1a1a;\"\u003eQ: What is the memory size and max I\/O?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;line-height:1.6;\"\u003eA: 3 MB user memory, supports up to 128,000 total I\/O points and 4,000 analog I\/O points.\u003c\/p\u003e\n\u003ch3 style=\"font-size:15px;line-height:1.4;margin:14px 0 3px;color:#1a1a1a;\"\u003eQ: What software programs 1756-L81E?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;line-height:1.6;\"\u003eA: Studio5000 Logix Designer software.\u003c\/p\u003e\n\u003ch3 style=\"font-size:15px;line-height:1.4;margin:14px 0 3px;color:#1a1a1a;\"\u003eQ: What are the main variants of L81E?\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px;line-height:1.6;\"\u003eA: 1756-L81EK (conformal coated), 1756-L81EXT (extreme environment), 1756-L81E-NSE (No Stored Energy).\u003c\/p\u003e\n\n\u003cp style=\"font-size:12px;color:#888888;text-align:center;margin:18px 0 4px;\"\u003e1756-L81E · Technical reference data · Independently supplied by SHLY-PLC\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46350157644029,"sku":"1756-L81E","price":2998.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/5665\/3309\/files\/1756-L81E.jpg?v=1792120890","url":"https:\/\/shly-plc.com\/products\/allen-bradley-1756-l81e-cpu-module","provider":"SHLY-PLC","version":"1.0","type":"link"}