{"product_id":"allen-bradley-1785-l40e-plc-5-40e-ethernet-ip-controller-module","title":"Allen Bradley 1785-L40E | PLC-5\/40E EtherNet\/IP Controller Module","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eAllen Bradley 1785-L40E\u003c\/strong\u003e is a PLC-5\/40E processor module designed for Ethernet\/IP communication and advanced control applications. Although discontinued by the manufacturer, it remains a robust solution for legacy systems requiring high-capacity memory, multiple communication interfaces, and reliable performance in industrial automation environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Allen Bradley\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e PLCs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProduct Line:\u003c\/strong\u003e PLC-5\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e \u003cstrong\u003e1785-L40E\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProcessor Type:\u003c\/strong\u003e PLC-5\/40E Ethernet processor\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eUser Memory:\u003c\/strong\u003e 48 KWords SRAM\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCommunication Ports:\u003c\/strong\u003e 1 Ethernet, 2 DH+\/Remote I\/O, 1 RS-232\/422A\/423 serial\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current Draw:\u003c\/strong\u003e 3.3 A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 17.3 W\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0–60 °C (32–140 °F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e −40–85 °C (−40–185 °F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMaximum I\/O Capacity:\u003c\/strong\u003e 2048 mixed or 2048 in + 2048 out complementary\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eI\/O Scan Time per Rack:\u003c\/strong\u003e 10 ms @ 57.6 kbit\/s; 7 ms @ 115.2 kbit\/s; 3 ms @ 230.4 kbit\/s\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSerial Ports:\u003c\/strong\u003e RS-232-C \/ RS-422A \/ 423 supported\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBattery:\u003c\/strong\u003e 1770-XYC\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eEEPROM Backup:\u003c\/strong\u003e Supported with 1785-ME16\/ME32\/ME64\/M100 modules\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMaximum I\/O Chassis (Total):\u003c\/strong\u003e 61\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMaximum I\/O Chassis (Universal Remote):\u003c\/strong\u003e 60\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMaximum I\/O Chassis (Extended Local):\u003c\/strong\u003e 0\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.00 lbs (1.36 kg)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCompatible Power Supplies:\u003c\/strong\u003e 1771-P4S, 1771-P6S, 1771-P4S1, 1771-P6S1\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eApplication Scenarios\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLegacy PLC-5 systems requiring Ethernet\/IP connectivity\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLarge-scale process control with high I\/O capacity\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIndustrial automation environments needing multiple communication protocols\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Is the 1785-L40E still in production?\u003c\/strong\u003e  A: No, it has been discontinued. Replacement options include ControlLogix processors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: What is the maximum number of I\/O chassis supported?\u003c\/strong\u003e  A: Up to 61 chassis in total, with 60 universal remote chassis.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQ: Does the module support EEPROM backup?\u003c\/strong\u003e  A: Yes, with compatible EEPROM modules (1785-ME16\/ME32\/ME64\/M100).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eComparison with Similar Models\u003c\/h4\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e1785-L40E:\u003c\/strong\u003e Ethernet-enabled PLC-5\/40 processor, 48 KWords memory\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e1785-L20E:\u003c\/strong\u003e Lower memory capacity, fewer I\/O options\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e1785-L80E:\u003c\/strong\u003e Higher-end PLC-5 processor with expanded memory and I\/O support\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":52881882841272,"sku":"1785-L40E","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1785-L40E.jpg?v=1771922463","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1785-l40e-plc-5-40e-ethernet-ip-controller-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}