{"product_id":"140cpu21304-modicon-quantum-cpu-controller-schneider-electric","title":"140CPU21304 Modicon Quantum CPU Controller Schneider Electric","description":"\u003ch2\u003eSchneider Electric 140CPU21304 Modicon Quantum CPU Controller\u003c\/h2\u003e\n\u003cp\u003eConfigured for deterministic control execution in Modicon Quantum backplane systems, the \u003cstrong\u003eSchneider Electric 140CPU21304\u003c\/strong\u003e (\u003cstrong\u003e140CPU21304\u003c\/strong\u003e CPU Controller) provides direct processing and communication handling within rack-based PLC architectures. The unit integrates a 20 MHz math processor and 768 kB memory for program execution, data handling, and Modbus Plus network interfacing.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe part number \u003cstrong\u003e140CPU21304\u003c\/strong\u003e is a fixed-order identifier within the Modicon Quantum CPU family. No validated manufacturer-published suffix segmentation or functional encoding breakdown is defined for this model string. Functional behavior is determined by firmware configuration and installed system modules rather than suffix interpretation.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable style=\"width: 99.9009%; height: 274.432px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003cth style=\"width: 37.4988%; height: 19.6023px;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"width: 59.5056%; height: 19.6023px;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eModelBrand\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003eSchneider Electric 140CPU21304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003eFrance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003e2.00 lbs (0.91 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003e0 degC to 60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eStorageTemp\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003e-40 degC to 85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eMemory\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003e768 kB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eProcessor Type\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003eMath Processor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eClock Frequency\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003e20 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003e250 mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eBus Current\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003e200 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6023px;\"\u003e\n\u003ctd style=\"width: 37.4988%; height: 19.6023px;\"\u003eCommunication\u003c\/td\u003e\n\u003ctd style=\"width: 59.5056%; height: 19.6023px;\"\u003eModbus Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication and Firmware Execution Behavior\u003c\/h3\u003e\n\u003cp\u003eWithin the Modicon Quantum architecture, CPU-to-backplane interaction is handled through deterministic rack-level bus scheduling, where \u003cstrong\u003eSchneider Electric Modicon Quantum\u003c\/strong\u003e CPU modules coordinate I\/O refresh cycles and memory mapping over a shared backplane communication structure. Firmware flash compatibility defines instruction set execution consistency across CPU revisions, while network determinism is maintained through synchronized scan cycles between Modbus Plus communication stacks and internal task scheduling. Backplane throughput is constrained by rack configuration and module density scaling, directly influencing I\/O update latency and system-level cycle time.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 140CPU21304 be hot-swapped during system operation?\u003cbr\u003eA: No. CPU replacement requires system power-down due to backplane bus state dependency and memory retention behavior.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module support firmware updates via Modbus Plus network?\u003cbr\u003eA: Firmware transfer is not executed via Modbus Plus. Updates require dedicated programming interface access through supported Schneider Electric configuration tools.\u003c\/p\u003e\n\u003cp\u003eQ: How is backplane current consumption distributed across the rack?\u003cbr\u003eA: The CPU contributes up to 200 mA to the rack backplane load, shared across installed Quantum modules based on slot configuration.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the CPU into the designated Modicon Quantum rack slot with verified backplane alignment. Ensure 24 VDC supply stability prior to insertion. Maintain proper grounding of the rack chassis to reduce electrical noise coupling across the backplane bus. All communication cabling for Modbus Plus must follow shielded twisted-pair routing with single-point shield termination. Avoid live insertion or removal of the CPU module during active process execution. Verify firmware compatibility with installed I\/O and communication modules prior to commissioning.\u003c\/p\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":44254785994840,"sku":"140CPU21304","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/140CPU21304-3.jpg?v=1781766371","url":"https:\/\/www.industriaxplc.com\/products\/140cpu21304-modicon-quantum-cpu-controller-schneider-electric","provider":"IndustriaX Limited","version":"1.0","type":"link"}