{"product_id":"allen-bradley-1785-l40b-plc-processor-reliable-delivery","title":"1785-L40B | Allen-Bradley PLC-5\/40 Processor (48K Words, DH+\/RIO, Serial Communication)","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"451\" data-start=\"0\"\u003eThe Allen-Bradley 1785-L40B is a PLC-5\/40 controller designed for medium to large automation applications requiring high-capacity memory and flexible communication options. It provides 48K words of user memory and supports up to 2048 mixed I\/O or complementary configurations of 2048 inputs plus 2048 outputs. With four DH+\/Remote I\/O channels and a configurable serial port, the 1785-L40B delivers robust connectivity for distributed control systems.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePLCs\/Machine Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1785-L40B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePLC Module\/Rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProgrammable Logic Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard Processor (PLC-5\/40)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUser Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48 KWords\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1770-XYC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEEPROM Backup Option\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupports 1785-ME16\/32\/64\/100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtected Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1771-P4S, P6S, P4S1, P6S1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Total I\/O\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2048 (any mix) or 2048 in + 2048 out (complementary)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Analog I\/O\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2048\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum I\/O per Link\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax I\/O Chassis (Total)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Universal Remote I\/O Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 per I\/O link\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Scan Time per Rack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 ms @ 57.6 kbit\/s; 7 ms @ 115.2 kbit\/s; 3 ms @ 230.4 kbit\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Interfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 DH+\/RIO channels, 1 serial port (RS-232-C\/422-A\/423-A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Coprocessor Expansion Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane Current Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.3 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17.3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0…60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNon-Operating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–40…85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About 1785-L40B\u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"1074\" data-start=\"590\"\u003eThe 1785-L40B is part of the PLC-5 product family, offering a standard processor module designed for installation in 1771 series chassis configurations. Its architecture supports both local and extended networks, with capacity to address up to 29 PLC-5 racks when used with Remote I\/O. The controller provides four independent DH+\/RIO ports that can operate as adapters or scanners, accompanied by a serial communication channel configurable for RS-232-C, RS-422-A, or RS-423 standards. Typical applications include manufacturing systems, process control, material handling, and other automation deployments requiring extensive I\/O, high memory availability, and multi-network communication capability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-end=\"1102\" data-start=\"1085\"\u003eKey Features:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e48K Words User Memory: Supports large and complex control programs.\u003c\/li\u003e\n\u003cli\u003eFour DH+\/RIO Ports: Allows independent network configurations for distributed control.\u003c\/li\u003e\n\u003cli\u003eVersatile Serial Communication: Configurable RS-232-C, RS-422-A, or RS-423 port for point-to-point connections.\u003c\/li\u003e\n\u003cli\u003eHigh I\/O Capacity: Supports up to 2048 mixed I\/O or 2048 input + 2048 output in complementary format.\u003c\/li\u003e\n\u003cli\u003eEEPROM Backup Option: Compatible with 1785-ME16\/32\/64\/100 memory modules for non-volatile storage.\u003c\/li\u003e\n\u003cli\u003eRack Compatibility: Designed for 1771-series chassis including 1771-A1B, A2B, A3B, A3B1, and A4B.\u003c\/li\u003e\n\u003cli\u003eRobust Environmental Ratings: Operates from 0–60°C with tested compliance to IEC temperature and shock standards.\u003c\/li\u003e\n\u003cli\u003eReliable Processor Design: Part of the PLC-5\/40 series known for long-term industrial performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1785-L40B delivers the reliability and precision required for large-scale PLC-5 automation and multi-network industrial control.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":47597334855978,"sku":"1785-L40B","price":1705.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/1785-L40B.webp?v=1708954358","url":"https:\/\/iqelectro.com\/products\/allen-bradley-1785-l40b-plc-processor-reliable-delivery","provider":"IQElectro","version":"1.0","type":"link"}