{"product_id":"yokogawa-afs40s-centum-vp-field-control-units","title":"Yokogawa AFS40S CENTUM VP Field Control Units","description":"\u003ch2\u003eYOKOGAWA AFS40S Single 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 control logic execution, regulatory control algorithms, and FIO bus communication within CENTUM VP networks. Powered by a 133 MHz RISC processor, the hardware processes 32 MB of battery-backed instruction memory to run complex control cycles, execute sequence logic, and manage alarm messaging across attached distributed nodes. The unit drives primary processing tasks through deterministic data paths, routing real-time process parameters to connected Human Interface Stations (HIS) over redundant communication links.\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\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003e7 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e207 x 265.9 x 482.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~60 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Architecture\u003c\/td\u003e\n\u003ctd\u003e133 MHz RISC CPU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Memory\u003c\/td\u003e\n\u003ctd\u003e32 MB with battery retention up to 72 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Cycle Timing\u003c\/td\u003e\n\u003ctd\u003eMinimum 100 ms (Typical execution interval 200 ms to 1 s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum I\/O Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 8 Node Interface Units (NIU) \/ Max 256 I\/O points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Interfaces\u003c\/td\u003e\n\u003ctd\u003eDual V-net\/IP ports (Redundant configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBus Interface\u003c\/td\u003e\n\u003ctd\u003eConfigurable single or dual ESB bus interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e24 VDC (+10% \/ -10% voltage tolerance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% RH (Non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Network Routing and Signal Conditioning\u003c\/h3\u003e\n\u003cp\u003eFunctioning as the single-controller execution hub for CENTUM VP architectures, the unit integrates communication management across dual V-net\/IP and ESB bus interfaces. Hardware isolation circuits maintain channel-to-channel isolation across backplane contacts, protecting logic paths from field noise and line transients. The module continuously handles field network communications alongside 4-20 mA HART loop protocol parameters, processing analog and discrete I\/O cycles down to the 100 ms minimum scan rate threshold.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the memory preservation hardware behave during an extended system power interruption?\u003c\/p\u003e\n\u003cp\u003eA: The integrated 32 MB main memory relies on an internal battery backup circuit that maintains stored control logic, system parameters, and dynamic sequence states for up to 72 hours during a main power failure.\u003c\/p\u003e\n\u003cp\u003eQ: What operational distinction exists between the AFS40S and duplex FCU models such as the AFS20D?\u003c\/p\u003e\n\u003cp\u003eA: The AFS40S operates as a single CPU processor system without redundant hot-standby CPU hardware. While it includes redundant V-net\/IP ports and dual power feed support, CPU processor failure requires a module replacement, whereas duplex models execute seamless, sub-10 ms failover to a secondary processor.\u003c\/p\u003e\n\u003cp\u003eQ: Can the AFS40S module be mounted directly into third-party cabinet frameworks?\u003c\/p\u003e\n\u003cp\u003eA: The hardware conforms to standard 19-inch rack dimensions (207 x 265.9 x 482.6 mm) and installs using standard mounting hole configurations. However, all backplane wiring, ESB bus interfaces, and power distributions must connect strictly to compatible Yokogawa CENTUM VP node hardware.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet Frame Seating:\u003c\/strong\u003e Secure the unit frame into a standard 19-inch rack enclosure using M5 retention screws. Torque all screws evenly to ensure mechanical stability against operational panel vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Connection:\u003c\/strong\u003e Bond the functional instrument earth grounding stud directly to the central cabinet ground bar using a short, heavy-gauge copper strap. Ensure ground connection resistance remains below 1 Ω.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Pathway Separation:\u003c\/strong\u003e Direct low-voltage ESB bus cables and dual V-net\/IP lines through dedicated wiring ducts separate from high-voltage AC distribution power cables. Maintain a minimum distance of 300 mm to suppress electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Environment Management:\u003c\/strong\u003e Provide at least 100 mm of clear vertical ventilation space above and below the chassis assembly to encourage natural air convection. Install auxiliary cabinet fan units if ambient operating temperatures approach the 55 deg C ceiling.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43698749505626,"sku":"AFS40S","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/364.1_c6554e78-753d-4d9a-aaec-ff3dc6613556.jpg?v=1784687964","url":"https:\/\/www.spareoil.com\/ar\/products\/yokogawa-afs40s-centum-vp-field-control-units","provider":"SpareOil Automation","version":"1.0","type":"link"}