{"product_id":"cpu-controller-140cpu21304-schneider-modicon-quantum","title":"CPU Controller 140CPU21304 Schneider Modicon Quantum","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Schneider Electric Schneider Electric 140CPU21304 functions as a high-performance central processing unit within the Modicon Quantum automation platform. This controller manages complex logic, floating-point arithmetic, and extensive I\/O scanning for large-scale industrial applications. It features integrated Modbus Plus ports to facilitate high-speed peer-to-peer communication and network programming. We supply this unit as 100% Brand New original equipment to ensure maximum lifecycle reliability for your control architecture.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eModicon Quantum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Capacity\u003c\/td\u003e\n\u003ctd\u003e768 kB (Internal RAM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Clock Speed\u003c\/td\u003e\n\u003ctd\u003e20 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003e1 × Modbus Plus, 2 × Modbus (RS232\/RS485)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Execution\u003c\/td\u003e\n\u003ctd\u003e0.1 µs per 1k instructions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.91 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to 60°C (32°F to 140°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Support\u003c\/td\u003e\n\u003ctd\u003e3V Lithium cell for CMOS backup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003ch4\u003eExecute High-Speed Logic\u003c\/h4\u003e\n\u003cp\u003eThe internal processor handles arithmetic and logic operations with sub-microsecond execution times. This speed allows the 140CPU21304 to control high-speed motion and rapid-response safety interlocks without lag.\u003c\/p\u003e\n\u003ch4\u003eSimplify Network Integration\u003c\/h4\u003e\n\u003cp\u003eThe native Modbus Plus port eliminates the need for external bridge modules. This integration reduces the hardware footprint and simplifies the configuration of global data exchange between multiple Quantum racks.\u003c\/p\u003e\n\u003ch4\u003eEnhance Data Protection\u003c\/h4\u003e\n\u003cp\u003eAn onboard battery-backed RAM secures your application program and critical registers against power loss. This feature prevents data corruption and ensures a seamless “warm start” once power returns to the facility.\u003c\/p\u003e\n\u003ch4\u003eOperate in Harsh Environments\u003c\/h4\u003e\n\u003cp\u003eThe rugged industrial design withstands ambient temperatures up to 60°C. High-grade internal components resist the thermal stress found in sealed electrical cabinets and heavy industrial environments.\u003c\/p\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003ch4\u003eCan the 140CPU21304 replace older 140CPU series controllers?\u003c\/h4\u003e\n\u003cp\u003eYes, this model often serves as a direct upgrade or replacement for legacy Quantum CPUs. Ensure you verify the firmware compatibility and memory requirements of your existing Concept or Unity Pro (EcoStruxure Control Expert) project before migration.\u003c\/p\u003e\n\u003ch4\u003eDoes this CPU support Hot Standby (HSBY) redundancy?\u003c\/h4\u003e\n\u003cp\u003eThe 140CPU21304 primarily serves standalone or distributed I\/O applications. For full process redundancy, Schneider typically recommends the 140CPU67160 or similar high-end Quantum models designed specifically for Hot Standby synchronization.\u003c\/p\u003e\n\u003ch4\u003eWhat is the purpose of the key switch on the front panel?\u003c\/h4\u003e\n\u003cp\u003eThe physical key switch controls the CPU state and memory protection. It allows engineers to lock the memory to prevent unauthorized program changes while the controller remains in “RUN” mode during production.\u003c\/p\u003e","brand":"Schneider","offers":[{"title":"Default Title","offer_id":49033165504764,"sku":"140CPU21304","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/140CPU213041.jpg?v=1777365663","url":"https:\/\/www.electronicplc.com\/products\/cpu-controller-140cpu21304-schneider-modicon-quantum","provider":"Electronic PLC","version":"1.0","type":"link"}