{"product_id":"1785-v40l-allen-bradley-plc-5-vmebus-processor-module","title":"1785-V40L | Allen Bradley | PLC-5 VMEbus Processor Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1785-V40L\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoperates as a high-performance VMEbus-based processor within the PLC-5 architecture. This module enables the integration of standard Allen Bradley control logic directly into VME-based computer systems, bridging the gap between high-level computational processing and industrial I\/O control. We supply this processor as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Factory Original\u003c\/strong\u003e, providing a critical solution for maintaining validated legacy systems where the manufacturer has discontinued production.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1785-V40L utilizes a robust memory structure and backplane interface to manage complex automation tasks:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\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\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePLC-5 VMEbus Processor\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProgram Memory\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e48K Words (Data Table and Program)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVME Interface Memory\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e64 KB Dual-Port VME Memory\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVMEbus Specification C.1 Compatible\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eI\/O Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSupports Extensive PLC-5 Remote I\/O Racks\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVMEbus (Standard 6U Height)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.52 lbs (0.69 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100% Brand New Original Stock\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\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeamless VMEbus Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module allows a standard VMEbus host computer to access PLC data tables directly through 64KB of dual-port RAM. This eliminates the latency associated with serial or Ethernet-based gateways, facilitating real-time data exchange between high-level software and field hardware.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLegacy Infrastructure Extension:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1785-V40L supports existing PLC-5 programming logic and Remote I\/O (RIO) networks. Engineers can replace aging or failing processors without rewriting thousands of lines of ladder logic, significantly reducing the risks and costs of system migration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Diagnostic Capabilities:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe processor hardware monitors system status and backplane communication integrity continuously. Integrated front-panel LED indicators provide immediate feedback on CPU health, battery status, and network activity, accelerating on-site troubleshooting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Reliability Memory Retention:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module utilizes non-volatile memory and battery-backed RAM to protect critical machine parameters during power loss. This ensures that the system retains its state and setpoints, preventing costly re-homing procedures upon restart.\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\u003eIs this 1785-V40L unit brand new?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We guarantee this unit is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand ships in its original factory-sealed packaging. We do not provide refurbished or used surplus modules, ensuring the hardware arrives with zero run-time and pristine gold-plated backplane connectors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 1785-V40L replace a standard 1785-L40L?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile the logical performance (48K memory) is similar, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1785-V40L is a VMEbus module\u003c\/strong\u003e. It requires a VMEbus chassis and host, whereas the 1785-L40L fits into a standard 1771 I\/O chassis. Always verify your backplane type before purchase.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat software do I use to program this processor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis module supports standard\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRSLogix 5\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor 6200 series programming software. You can upload and download programs through the DH+ port or via the VMEbus interface, depending on your system configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the dual-port RAM function in a VME system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 64KB VME memory acts as a shared mailbox. The VME host reads\/writes to this memory space simultaneously with the PLC-5 processor, allowing for high-speed, interrupt-driven synchronization between the two environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52863571591477,"sku":"1785-V40L","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1785-V40L.png?v=1778478785","url":"https:\/\/www.5gplc.com\/products\/1785-v40l-allen-bradley-plc-5-vmebus-processor-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}