{"product_id":"nfdv557-s00-s2-yokogawa-centum-vp-digital-input-module","title":"NFDV557-S00 S2 YOKOGAWA CENTUM VP Digital Input Module","description":"\u003ch2\u003eYOKOGAWA NFDV557-S00 S2 Digital Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for discrete ON\/OFF signal acquisition in Yokogawa CENTUM VP and CS 3000 DCS systems, the \u003cstrong\u003eYOKOGAWA NFDV557-S00 S2\u003c\/strong\u003e (\u003cstrong\u003eNFDV557\u003c\/strong\u003e Digital Input Module) provides direct physical\/electrical execution. It handles field contact states from switches, valves, and motor starters, routing isolated status data directly across the Enhanced Signal Bus (ESB) backplane.\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\u003eNFDV557-S00 S2\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.1 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.2 cm x 12.4 cm x 12.6 cm\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\u003eSystem backplane powered via Node Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e32 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003eDiscrete ON\/OFF, NAMUR-compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eOptical isolation between field side and system bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScan Rate\u003c\/td\u003e\n\u003ctd\u003eSynchronized with FCS control cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eNode Unit (NU) \/ I\/O Unit rack-mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuffix Codes\u003c\/td\u003e\n\u003ctd\u003e-S00 (Standard configuration), S2 (Revision 2)\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 Signal Conditioning\u003c\/h3\u003e\n\u003cp\u003eThe module utilizes optical channels to isolate high-voltage field transients from the system backplane, preventing EMI propagation into the Field Control Station (FCS). Channel-to-channel signal integrity maintains accurate status transmission across the 4-20 mA and discrete IO infrastructure. Internal logic processes both dry and wet contact conditions, ensuring deterministic cycle synchronization without backplane bus latency.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the module support hot-swapping during active DCS operation?\u003c\/p\u003e\n\u003cp\u003eA: Yes, maintenance personnel can insert or remove the module from the Node Unit backplane while the Field Control Station remains online, provided standard ESD grounding precautions are followed.\u003c\/p\u003e\n\u003cp\u003eQ: What cable connection interface does the input section support?\u003c\/p\u003e\n\u003cp\u003eA: Field connection requires standard pressure clamp terminals designed for direct wire termination to the 32 input channels.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module indicate active channel logic states?\u003c\/p\u003e\n\u003cp\u003eA: Front-panel LED indicators reflect individual channel actuation states directly from the field circuit side before optical isolation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the module strictly within an energized or de-energized Yokogawa Node Unit rack slot by aligning the card edges with the guide rails. Push the unit firmly until the rear connector seats into the ESB backplane, then hand-tighten the top and bottom retaining screws to secure the physical ground path.\u003c\/p\u003e\n\u003cp\u003eEnsure all field wiring uses shielded twisted-pair cables terminated at the pressure clamp block. Ground signal cable shields at a single point on the system side ground bar to prevent ground loops. Maintain a minimum bending radius of 50 mm on all incoming field wiring harnesses to prevent mechanical stress on terminal contact points. Keep signal lines segregated from high-voltage AC power conduits by at least 300 mm to suppress inductive interference.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43873111277658,"sku":"NFDV557-S00 S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/850..jpg?v=1787187849","url":"https:\/\/www.spareoil.com\/products\/nfdv557-s00-s2-yokogawa-centum-vp-digital-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}