{"product_id":"1785-l40c15-industrial-automation-module-by-allen-bradley","title":"1785-L40C15 Industrial Automation Module by Allen-Bradley","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1785-L40C15 is a ControlNet PLC5 Programmable Logic Controller (PLC) from the classic PLC5 series. It supports up to 48K words of user memory and handles any mix of discrete I\/O totaling 2048 points. With dual ControlNet ports, Data Highway Plus (DH+), Remote I\/O (RIO), and serial communication, this processor is built for demanding industrial control applications.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Rockwell Automation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessor Type:\u003c\/strong\u003e PLC-5\/40C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Total I\/O:\u003c\/strong\u003e 2048 (any mix); 2048 Input \/ 2048 output (complimentary)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController Memory:\u003c\/strong\u003e up to 48 Kwords\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Ports:\u003c\/strong\u003e Data Highway Plus (DH+), Remote I\/O (RIO), Serial, DH using 1785-KA, Two (2) ControlNet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e Allen-Bradley 1770-XYC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware Addressing:\u003c\/strong\u003e 2-slot, 1-slot, 1\/2-slot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgram Scan Time:\u003c\/strong\u003e 0.5 ms per K word (bit logic), 2 ms per K word (typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Location:\u003c\/strong\u003e 1771-A1B, -A2B, A3B, -A3B1, -A4B chassis; left-most slot\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax User Memory Words\u003c\/td\u003e\n\u003ctd\u003e48 Kilowords\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery-Backed Static RAM\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEEPROM Program Backup Option\u003c\/td\u003e\n\u003ctd\u003eYes (using 1785-ME16, -ME32, -ME64, and -M100)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtected Memory\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Analog I\/O Forcible\u003c\/td\u003e\n\u003ctd\u003e2048\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Analog I\/O Nonforcible\u003c\/td\u003e\n\u003ctd\u003e48000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Scan Time per Rack (ControlNet)\u003c\/td\u003e\n\u003ctd\u003e0.5 ms (average)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Scan Time per Rack (Universal Remote I\/O)\u003c\/td\u003e\n\u003ctd\u003e10 ms at 57.6 kbits\/s, 7 ms at 115.2 kbits\/s, 3 ms at 230.4 mbits\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax I\/O Chassis Total\u003c\/td\u003e\n\u003ctd\u003e125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax I\/O Chassis Extended Local\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax I\/O Chassis Universal Remote\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS-232-C\/422-A\/423-A Ports\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Coprocessor Expansion Port\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Redundancy\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe 1785-L40C15 excels in applications requiring high availability and deterministic control over ControlNet networks. Typical uses include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing lines:\u003c\/strong\u003e Coordinating multiple stations with distributed I\/O via Bulletin 1771, 1794, 1746, and 1791 I\/O modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess control:\u003c\/strong\u003e Handling analog and discrete I\/O with fast scan times for critical loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundant systems:\u003c\/strong\u003e Using hot backup via 1785-CBHM or ControlNet Hot Backup Cartridge for high-speed processor switchover and data transfer.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eInstall the 1785-L40C15 in the left-most slot of a 1771-A1B, -A2B, A3B, -A3B1, or -A4B chassis. Ensure the chassis is properly grounded and power is off during installation. Connect the battery (1770-XYC) only while the processor is powered to maintain RAM contents. For redundant configurations, install the hot backup cartridge in each ControlNet processor rack and configure the network accordingly.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRegularly inspect the battery and replace it every 2-3 years or as indicated by the low-battery LED. Keep the module free of dust and ensure adequate ventilation. Because the 1785-L40C15 supports battery-backed static RAM, replacing the battery with power applied prevents memory loss. Periodic checks of the ControlNet connectors and terminators help avoid communication faults.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThis processor communicates over Data Highway Plus (DH+), Remote I\/O (RIO), serial (DF1 and ASCII protocols), and ControlNet. It supports DH using 1785-KA modules and integrates with 1771, 1794, 1746, and 1791 I\/O systems, including 8-, 16-, 32-point, specialty, and intelligent modules. Memory expansion is possible using 1785-ME32, 1785-ME64, or 1785-M100 modules.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the 1785-L40C15, verify your required I\/O count, memory needs, and communication protocols. Confirm the chassis type and slot availability. If you need redundancy, ensure the hot backup cartridge is included. For a reliable supply of genuine Allen-Bradley 1785-L40C15 processors, consider PLC Source PRO as your industrial automation parts partner.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44436152057955,"sku":"1785-L40C15","price":248.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1785-BCM_398bfdad-1b49-45b9-9092-51b1d095e01a.jpg?v=1785793834","url":"https:\/\/www.plcsourcepro.com\/he\/products\/1785-l40c15-industrial-automation-module-by-allen-bradley","provider":"PLC Source PRO","version":"1.0","type":"link"}