{"product_id":"nfdv157-s00-yokogawa-centum-vp-digital-input-module","title":"NFDV157-S00 Yokogawa CENTUM VP Digital Input Module","description":"\u003ch2\u003eYokogawa NFDV157-S00 Digital Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for discrete field signal acquisition in CENTUM VP and ProSafe-RS control platforms, the \u003cstrong\u003eYokogawa NFDV157-S00\u003c\/strong\u003e (\u003cstrong\u003eNFDV157\u003c\/strong\u003e Digital Input Module) provides direct physical\/electrical execution across 32 isolated input channels. The unit converts 24 VDC dry contact and logic signals into deterministic digital states while isolating field transients from backplane system logic.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCode\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\u003eNFDV157\u003c\/td\u003e\n\u003ctd\u003eDigital Input Module (32-channel, 24 VDC, isolated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-S\u003c\/td\u003e\n\u003ctd\u003eStandard type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003eAlways 0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003eBasic type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eNFDV157-S00\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\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e130 x 107 x 32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard backplane power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal (18 to 26.4 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Density\u003c\/td\u003e\n\u003ctd\u003e32 isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Type\u003c\/td\u003e\n\u003ctd\u003eDry contact closure or 24 VDC logic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Type\u003c\/td\u003e\n\u003ctd\u003ePressure clamp terminal support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eBuilt-in short-circuit and over-voltage protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe module delivers robust signal separation via channel-to-channel isolation circuits designed to block ground loops, electrical surges, and common-mode noise across industrial environments. While processing discrete field inputs, the internal architecture shares backplane real-time diagnostic frameworks common to Yokogawa DCS instruments using HART and fieldbus topologies. Galvanic barriers safeguard core processing logic against external field faults, ensuring signal integrity across high-density I\/O racks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can engineers hot-swap the module during active controller operation?\u003c\/p\u003e\n\u003cp\u003eA: Hot-swapping depends on the field control unit rack configuration. Technicians must ensure that removing the module does not disrupt critical safety loops in ProSafe-RS systems.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module handle over-voltage conditions on individual input channels?\u003c\/p\u003e\n\u003cp\u003eA: Integrated protection circuits limit excess current and clamp transient voltages to protect internal optocouplers and processing logic from field wiring spikes.\u003c\/p\u003e\n\u003cp\u003eQ: What type of wiring connection does the terminal interface support?\u003c\/p\u003e\n\u003cp\u003eA: The module interface accommodates pressure clamp terminals for rapid field conductor termination without requiring manual soldering.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDe-energize field wiring before connecting 24 VDC input lines to terminal blocks.\u003c\/li\u003e\n\u003cli\u003eVerify input power polarity across all channel terminals to prevent reverse voltage stress.\u003c\/li\u003e\n\u003cli\u003eStrip field conductor ends to specified lengths and clamp securely into terminal slots, verifying metal-to-metal contact.\u003c\/li\u003e\n\u003cli\u003eRoute field signal cables through grounded metallic conduits, maintaining separation from high-voltage motor power lines.\u003c\/li\u003e\n\u003cli\u003eGround all cable shielding drain wires directly to the cabinet earth bar.\u003c\/li\u003e\n\u003cli\u003eAlign the module base with rack guide slots and press firmly until the rear connector seats into the backplane assembly.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43913223209050,"sku":"NFDV157-S00 S2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/62._62bbc7f9-73a5-47d8-8935-62a1c7ffe586.jpg?v=1787713186","url":"https:\/\/www.spareoil.com\/products\/nfdv157-s00-yokogawa-centum-vp-digital-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}