{"product_id":"modicon-quantum-140cpu42402c-486-cpu-schneider","title":"Modicon Quantum 140CPU42402C 486 CPU Schneider","description":"\u003ch2\u003eHigh-Performance Quantum Controller with Advanced Networking\u003c\/h2\u003e\n\u003cp\u003eExecute demanding automation logic with the powerful \u003cstrong style=\"color: #2e74b5;\"\u003eSchneider Electric 140CPU42402C\u003c\/strong\u003e CPU module. This Modicon Quantum controller leverages a 486 processor and substantial 2MB RAM for complex applications. Its dual Modbus Plus ports and conformal coating make it ideal for networked systems in harsh industrial environments.\u003c\/p\u003e\n\u003ch3\u003eCore Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eBrand \u0026amp; Manufacturer:\u003c\/strong\u003e Schneider Electric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eProduct Line \u0026amp; Model:\u003c\/strong\u003e Modicon Quantum \/ \u003cstrong\u003e140CPU42402C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eType:\u003c\/strong\u003e Central Processing Unit (CPU) Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eProcessor:\u003c\/strong\u003e 486 Controller CPU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eMemory:\u003c\/strong\u003e 2 MB RAM, Built-in Flash Memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eProcessing Speed:\u003c\/strong\u003e ~0.3 µs per Boolean Instruction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eProgramming Standard:\u003c\/strong\u003e IEC 61131-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eVoltage Supply:\u003c\/strong\u003e 5 V DC (from backplane)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eEnvironmental Protection:\u003c\/strong\u003e Conformal Coated (CC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eOperating Temperature:\u003c\/strong\u003e 0°C to 60°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommunication \u0026amp; System Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eCommunication Ports:\u003c\/strong\u003e 2 x Modbus Plus (MB+)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eSupported Protocols:\u003c\/strong\u003e Modbus, Modbus Plus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eI\/O Support:\u003c\/strong\u003e Local \u0026amp; Remote I\/O Systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eSystem Monitoring:\u003c\/strong\u003e Integrated Watchdog Timer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eProgramming Software:\u003c\/strong\u003e Compatible with Unity Pro \u0026amp; Concept\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eMounting:\u003c\/strong\u003e Rack-mounted in Quantum Chassis\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003ePowerful 486 Processing:\u003c\/strong\u003e Provides the computational power needed for complex control algorithms, data processing, and multi-tasking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eEnhanced Memory Capacity:\u003c\/strong\u003e 2MB of RAM supports large programs, extensive data tables, and sizable I\/O configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eDual-Modbus Plus Networking:\u003c\/strong\u003e Two MB+ ports enable peer-to-peer communication, network redundancy, or connection to separate network segments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eStandardized Programming:\u003c\/strong\u003e Adherence to IEC 61131-3 ensures structured, maintainable, and reusable control logic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eRuggedized Construction:\u003c\/strong\u003e The conformal coating protects critical electronics from moisture, dust, and corrosive atmospheres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #2e74b5;\"\u003eHigh-Speed Logic Execution:\u003c\/strong\u003e Fast Boolean processing ensures rapid response to input changes for precise real-time control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIntegration and Application Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the CPU in a Quantum rack as the main controller, powered by the 5VDC backplane.\u003c\/li\u003e\n\u003cli\u003eUtilize the dual Modbus Plus ports to create resilient network topologies or to interface with Quantum remote I\/O drops.\u003c\/li\u003e\n\u003cli\u003eDevelop control programs using industry-standard IEC 61131-3 languages in Unity Pro software.\u003c\/li\u003e\n\u003cli\u003eLeverage the large 2MB RAM for data-intensive applications like batch processing, data logging, or SCADA interfacing.\u003c\/li\u003e\n\u003cli\u003eThe integrated watchdog timer automatically monitors system health and can initiate a controlled shutdown if a fault occurs.\u003c\/li\u003e\n\u003cli\u003eEnsure the operating environment stays within the 0°C to 60°C range for optimal performance and longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat are the main advantages of the dual Modbus Plus ports?\u003c\/strong\u003e\u003cbr\u003eThe two ports on the \u003cstrong\u003e140CPU42402C\u003c\/strong\u003e allow for network redundancy, daisy-chaining of nodes, or connecting to two independent MB+ networks for segmented control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan this CPU be programmed with modern software?\u003c\/strong\u003e\u003cbr\u003eYes, it is fully programmable using Schneider Electric's Unity Pro, the modern platform for Quantum controllers, as well as the legacy Concept software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat type of I\/O can it control?\u003c\/strong\u003e\u003cbr\u003eIt supports a full range of local Quantum I\/O modules in its rack and can manage extensive remote I\/O over Modbus Plus or via additional network interface modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes it have an Ethernet port?\u003c\/strong\u003e\u003cbr\u003eNo, the \u003cstrong\u003e140CPU42402C\u003c\/strong\u003e has Modbus Plus ports natively. For Ethernet\/IP or Modbus TCP\/IP communication, a separate Quantum Ethernet co-processor module (NOE) is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the purpose of the built-in flash memory?\u003c\/strong\u003e\u003cbr\u003eThe flash memory permanently stores the user's control program and critical parameters, ensuring they are retained even without battery backup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this controller suitable for safety applications?\u003c\/strong\u003e\u003cbr\u003eNo, the \u003cstrong\u003e140CPU42402C\u003c\/strong\u003e is a standard control CPU. For safety-related applications, a certified safety CPU (like a Quantum Safety PLC) is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e© 2026 NexAuto Technology Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003cstrong\u003e\u003ca style=\"color: #ff6b35; text-decoration: underline;\" href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003c\/strong\u003e\u003cbr\u003eContact: \u003cstrong\u003e\u003ca style=\"color: #ff6b35; text-decoration: underline;\" href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e\u003c\/strong\u003e | Phone: \u003cstrong\u003e\u003ca style=\"color: #ff6b35; text-decoration: underline;\" href=\"https:\/\/wa.me\/8615392429628\" target=\"_blank\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePartner: \u003cstrong\u003e\u003ca style=\"color: #ff6b35; text-decoration: underline;\" href=\"https:\/\/www.autonexcontrol.com\/\" target=\"_blank\"\u003eAutoNex Controls Limited\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Schneider","offers":[{"title":"Default Title","offer_id":47226120896770,"sku":"140CPU42402C","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/140CPU42402C.jpg?v=1768535152","url":"https:\/\/www.nex-auto.com\/products\/modicon-quantum-140cpu42402c-486-cpu-schneider","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}