{"product_id":"allen-bradley-1785-l40l-plc-5-40l-standard-processor-module","title":"Allen-Bradley 1785-L40L PLC-5\/40L Standard Processor Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1785-L40L\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003estands as a high-capacity central processing unit within the classic PLC-5 family. This standard processor manages complex automation tasks by coordinating extensive I\/O networks and executing sophisticated control logic. It features 48 Kilowords of user memory and supports a vast I\/O capacity of up to 2048 points. We offer this module in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econdition, providing a definitive solution for maintaining or expanding large-scale industrial operations that rely on the proven PLC-5 architecture.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe following parameters define the high-performance capabilities of the 1785-L40L:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProcessor Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePLC-5\/40L Standard Processor\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax User Memory\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e48 Kilowords\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Total I\/O\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2048 (any mix)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Analog I\/O\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2048\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eI\/O Scan Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.5 ms (Extended Local)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax I\/O Chassis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e61 Total (16 Extended Local \/ 32 Universal Remote)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication Ports\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 x RS-232-C\/422-A\/423-A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackup Memory\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEEPROM Support (via 1785-ME\/M modules)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRAM Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBattery-Backed Static RAM\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe 1785-L40L solves complex integration and uptime challenges in established industrial facilities:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMassive Networking Flexibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis processor manages up to 61 I\/O chassis across universal remote and extended local links. This capability allows engineers to centralize control for massive production lines without sacrificing localized response times.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRapid Logic Execution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a scan time as low as 0.5 ms for extended local racks, the 1785-L40L handles high-speed discrete and analog signals with precision, reducing jitter in sensitive control loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual-Tier Data Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module utilizes battery-backed RAM for active runtime data and supports EEPROM program backup. This dual approach prevents costly program loss during extended power outages or battery failures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLegacy System Longevity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInstalling a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBrand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1785-L40L eliminates the risks associated with used or refurbished units, such as unknown component fatigue or degraded capacitors. This ensures your validated system continues to operate for years without requiring a full, disruptive migration to newer platforms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat memory backup options does the 1785-L40L support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe processor uses battery-backed static RAM as standard. For non-volatile program storage, you can utilize the 1785-ME16, -ME32, -ME64, or -M100 EEPROM modules to ensure your logic remains intact without power.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow many I\/O points can this processor handle?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1785-L40L supports a maximum of 2048 I\/O points in any mix, or 2048 inputs and 2048 outputs in a complementary configuration, making it suitable for large-scale plant automation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a Brand New original product?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. This unit is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand original. While the PLC-5 series is a legacy line, our new-in-box stock provides the highest possible reliability and original factory performance specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the Control Coprocessor Expansion port for extra tasks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 1785-L40L includes a coprocessor expansion port, allowing you to offload specialized tasks—such as advanced math or custom communication protocols—to a separate module without impacting the main CPU scan time\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52768775307573,"sku":"1785-L40L","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1785-L40L.jpg?v=1776750192","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1785-l40l-plc-5-40l-standard-processor-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}