{"product_id":"sdv144-s63-yokogawa-digital-input-module-sdv144-series","title":"SDV144-S63 Yokogawa Digital Input Module  SDV144 Series","description":"\u003ch1\u003eYokogawa SDV144-S63 Digital Input Module\u003c\/h1\u003e\n\u003cp\u003eThe\u003cstrong\u003eYokogawa SDV144-S63\u003c\/strong\u003e(\u003cstrong\u003eSDV144\u003c\/strong\u003eDigital Input Module) operates as a dedicated hardware component for discrete signal acquisition within CENTUM-style DCS input subsystems. Configured for no-voltage contact detection, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSDV144-S63\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econverts 16-channel field contact states into system-level digital input data via isolated internal circuitry and 24 V DC external excitation.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSDV144\u003c\/strong\u003e: Base model, 16-channel digital input module, 24 V DC contact input type\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eS\u003c\/strong\u003e: Standard type configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e6\u003c\/strong\u003e: Signal cable interface adapter provided, no explosion protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e3\u003c\/strong\u003e: ISA G3 compliance, extended temperature rating -20 to 70 degC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\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\u003eModelBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa SDV144-S63\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\u003e0.41 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowerConsumption\u003c\/td\u003e\n\u003ctd\u003e5 V DC: 290 mA max \/ 24 V DC: 140 mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eNo-voltage contact input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e6 mA +\/-20 percent (24 V DC excitation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Supply\u003c\/td\u003e\n\u003ctd\u003e24 V DC +\/-20 percent, 200 mA capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Response Time\u003c\/td\u003e\n\u003ctd\u003e40 ms max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eSignal-to-system 2 kV AC for 1 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Input Voltage\u003c\/td\u003e\n\u003ctd\u003e30 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eChannel-to-Channel Isolation and Digital Input Conditioning (Yokogawa DCS Architecture)\u003c\/h2\u003e\n\u003cp\u003eThe Yokogawa SDV144-S63 implements internal channel grouping with system-side isolation to suppress ground potential offsets and field return noise coupling in multi-drop contact input wiring. Each input channel is designed for dry-contact state detection with defined ON resistance threshold (1 kOhm max) and OFF leakage discrimination (100 kOhm min), enabling stable logic transition detection under industrial contact bounce conditions.\u003c\/p\u003e\n\u003cp\u003eSignal conditioning is executed through opto-isolated front-end circuitry referenced to 24 V DC external excitation. The module maintains backplane separation between field-side input loops and control processor logic domain, reducing cross-channel electrical interference in dense I\/O racks.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Can the SDV144-S63 be hot-swapped under live system power?\u003c\/strong\u003e\u003cbr\u003eA1: Hot-swap capability depends on the rack subsystem design. Electrically, input channels are isolated, but backplane removal under load may interrupt digital scan integrity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: What is the effect of input voltage exceeding 30 V DC?\u003c\/strong\u003e\u003cbr\u003eA2: 30 V DC is the instantaneous maximum permissible input level. Exceeding this threshold risks input stage breakdown or long-term degradation of isolation components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Does the module require external pull-up or pull-down resistors?\u003c\/strong\u003e\u003cbr\u003eA3: No external resistors are required. Input conditioning is internally defined for dry-contact operation using 24 V DC excitation loop.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure 24 V DC excitation supply is within tolerance range before field wiring termination\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUse shielded signal cable (AKB331 or equivalent) for multi-core digital input routing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain separation between high-voltage power lines and digital input wiring harness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGround shield at control cabinet side only to prevent ground loop current circulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify contact resistance is within ON\/OFF threshold limits prior to commissioning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm module seating integrity in rack backplane to avoid intermittent scan loss\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44143525986392,"sku":"SDV144-S63","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/SDV144-S63.jpg?v=1779765883","url":"https:\/\/www.industriaxplc.com\/products\/sdv144-s63-yokogawa-digital-input-module-sdv144-series","provider":"IndustriaX Limited","version":"1.0","type":"link"}