{"product_id":"yokogawa-afs40s-field-control-unit","title":"Yokogawa AFS40S | Field Control Unit","description":"\u003ch2\u003eYokogawa AFS40S Field Control Unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa AFS40S\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAFS40S\u003c\/strong\u003e Field Control Unit, operates as a dedicated hardware component for executing continuous control, sequence control, and algorithmic computation within CENTUM VP and CENTUM CS 3000 systems. It provides direct electrical execution of control programs and manages real-time data flow between I\/O modules and operator interfaces.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eAFS40S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e18 kg (approximate, depends on configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e482 mm (W) x 133 mm (H) x 400 mm (D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003e0 to 50 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowerConsumption\u003c\/td\u003e\n\u003ctd\u003e200 VA (AC), 120 W (DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessorRedundancy\u003c\/td\u003e\n\u003ctd\u003eDual-redundant CPU with automatic failover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControlNetwork\u003c\/td\u003e\n\u003ctd\u003eVnet\/IP or VL net (redundant configuration supported)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Communication\u003c\/td\u003e\n\u003ctd\u003eESB Bus \/ ER Bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003eECC RAM for program execution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003e19-inch rack-mountable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control Specifics\u003c\/h3\u003e\n\u003cp\u003eThe AFS40S supports 4-20 mA HART loop protocol and FOUNDATION Fieldbus \/ Profibus PA connectivity for digital field devices. Channel-to-channel isolation is implemented to prevent signal interference between adjacent loops. The unit includes cold junction compensation (CJC) for accurate thermocouple readings and ensures that control calculations remain consistent under varying ambient conditions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the maximum number of hot-swappable modules supported?\u003cbr\u003eA: The AFS40S supports hot-swap of power supply modules and processor cards without interrupting ongoing control, but the total number of I\/O nodes depends on system licensing and configuration.\u003c\/p\u003e\n\u003cp\u003eQ: How is backplane power consumption managed during redundant CPU operation?\u003cbr\u003eA: Each CPU card draws nominal backplane current. During dual-CPU operation, load sharing occurs automatically, and power supplies handle redundancy without exceeding rated limits.\u003c\/p\u003e\n\u003cp\u003eQ: Is firmware upgrade compatible with all existing modules?\u003cbr\u003eA: Firmware updates are compatible with standard AFS40S modules; however, any third-party I\/O interface cards must be verified for compatibility.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall in a 19-inch industrial rack with at least 50 mm clearance around ventilation areas.\u003c\/li\u003e\n\u003cli\u003eEnsure all rack-mounted modules are securely fastened to prevent vibration-induced faults.\u003c\/li\u003e\n\u003cli\u003eConnect shielded communication cables for Vnet\/IP or VL net interfaces; terminate shields at a single point to ground.\u003c\/li\u003e\n\u003cli\u003eMaintain separate routing for power and signal cabling to minimize electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eVerify proper AC\/DC input voltage selection and grounding before energizing the unit.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44214367715416,"sku":"AFS40S","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/AFS40S-3.jpg?v=1781063718","url":"https:\/\/www.industriaxplc.com\/products\/yokogawa-afs40s-field-control-unit","provider":"IndustriaX Limited","version":"1.0","type":"link"}