{"product_id":"yokogawa-afs40s-control-unit","title":"Yokogawa AFS40S Control Unit","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa AFS40S\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAFS40S\u003c\/strong\u003e Duplexed Field Control Unit, operates as a dedicated hardware component for synchronized control logic execution and dual-redundant network routing within CENTUM field input\/output (FIO) applications. The processing block executes synchronous system loops natively at the hardware tier to stabilize field-sensor telemetry and coordinate node unit data tracking across distributed industrial networks.\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eCENTUM CS 3000 \/ VP FIO Subsystem\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\u003eMain Memory Capacity\u003c\/td\u003e\n\u003ctd\u003e16 Mbyte volatile core memory matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Protection\u003c\/td\u003e\n\u003ctd\u003eIntegrated battery back-up tracking; 72 hours maximum discharge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Recharge Time\u003c\/td\u003e\n\u003ctd\u003e48 hours minimum continuous recharge cycle limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Contact Output\u003c\/td\u003e\n\u003ctd\u003e3 terminals (Normally Closed, Normally Open, Common)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e250 VAC maximum, 30 VDC maximum \/ 2 A maximum current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Contact Power\u003c\/td\u003e\n\u003ctd\u003e125 VA maximum rated AC power handling capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eV Net Interface\u003c\/td\u003e\n\u003ctd\u003eDual-redundant integrated high-speed control network lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESB Bus Interface\u003c\/td\u003e\n\u003ctd\u003eConfigurable dual-redundant or single backplane bus lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Node Capacity\u003c\/td\u003e\n\u003ctd\u003eMaximum 10 Local Node Units per Field Control Unit (FCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemote Node Capacity\u003c\/td\u003e\n\u003ctd\u003eMaximum 9 Remote Node Units per Field Control Unit (FCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Combined Nodes\u003c\/td\u003e\n\u003ctd\u003e10 Node Units maximum total combined cluster limit per FCU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCPU Processors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; DCS Instrumentation Interface\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Density Channel Consolidations and Node Expansion:\u003c\/strong\u003e The control unit establishes data-link mapping for up to 10 combined node units, enabling dense channel consolidation at the local and remote tiers. The internal processing layers manage distinct memory tables for local node tracks and remote node interfaces, routing discrete 4-20 mA HART loop protocol lines and valve control registers into unified memory arrays without calculation drift or data skew.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Redundant V Net and ESB Bus Network Management:\u003c\/strong\u003e The communication tier incorporates separate physical transceivers that divide data traffic into distinct zones to prevent packet collisions. The internal logic handles high-speed system tracking over dual-redundant V net control interfaces while simultaneously executing internal rack-to-rack data transfers over specialized ESB bus tracks, isolating high-frequency network spikes from the active logic execution cores.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the system manage communication if one of the V net network lines is compromised?\u003c\/p\u003e\n\u003cp\u003eA: The AFS40S incorporates hardware-level dual-redundancy on the V net interface. If a signal failure, line break, or packet loss is detected on the active channel, communication seamlessly switches to the redundant line at the physical transceiver level with zero interruption to control logic execution.\u003c\/p\u003e\n\u003cp\u003eQ: Can the AFS40S be configured to monitor 10 local nodes and 9 remote nodes simultaneously?\u003c\/p\u003e\n\u003cp\u003eA: No. While the processor architecture can address up to 10 local node units or 9 remote node units independently, the hardware enforces a strict total combined limit of 10 node units per Field Control Unit (FCU) cluster.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Grounding and Noise Mitigation:\u003c\/strong\u003e Bond the primary cabinet frame grounding terminal directly to the single-point instrument ground bus bar. Ensure the bonding strap is constructed of low-impedance braided copper wire to minimize electromagnetic noise on the backplane bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus Contact Wiring Precautions:\u003c\/strong\u003e Route status contact outputs (Normally Closed, Normally Open, and Common terminals) through a dedicated, isolated conduit conduit separate from low-voltage instrument signals. Do not exceed the maximum electrical contact rating of 250 VAC or 30 VDC at 2 A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Backup Battery Verification:\u003c\/strong\u003e Prior to commissioning, verify that the integrated battery backup is fully connected. Ensure the unit receives at least 48 hours of continuous, uninterrupted system power to guarantee the backup circuit can maintain memory retention for the rated 72-hour maximum discharge period during a power loss event.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45256565882995,"sku":"AFS40S","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/AFS40S_1_51063b19-8a22-460c-8b7a-c85bf2f0865b.jpg?v=1784259426","url":"https:\/\/www.dcssupplier.com\/products\/yokogawa-afs40s-control-unit","provider":"DcsSupplier Limited","version":"1.0","type":"link"}