{"product_id":"sdv144-s33-yokogawa-digital-input-module-datasheet-technical-manual","title":"SDV144-S33 Yokogawa Digital Input Module Datasheet\u0026Technical Manual","description":"\u003ch1\u003eYokogawa SDV144-S33 Digital Input Module\u003c\/h1\u003e\n\u003cp\u003eConfigured for 24 VDC discrete signal acquisition in CENTUM DCS I\/O subsystem, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa SDV144-S33\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003eSDV144-S33\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDigital Input Module) provides direct physical\/electrical execution. The module implements 16-channel isolated digital input processing with a maximum 40 ms response time, supporting field signal interfacing under 24 V DC external excitation. Internal architecture separates field and system domains through module-level isolation and 2 kV AC withstand voltage design.\u003c\/p\u003e\n\u003cp\u003eThe unit is designed for multi-channel ON\/OFF state acquisition with aggregated input line protection and backplane power utilization at 5 V DC and 24 V DC domains. It is intended as a discontinued product, with SDV144-S63 identified as the replacement variant.\u003c\/p\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-S33\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003eNot specified\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-channel\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\u003eExternal Supply\u003c\/td\u003e\n\u003ctd\u003e24 V DC +20% \/ -10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWithstanding Voltage\u003c\/td\u003e\n\u003ctd\u003e2 kV AC (input to system, 1 minute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eModule-level isolation, input group collectively connected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eChannel Isolation and Field Signal Conditioning (Yokogawa DCS Architecture)\u003c\/h3\u003e\n\u003cp\u003eThe SDV144-S33 implements channel-group isolation architecture typical of Yokogawa CENTUM I\/O design, where field input lines are electrically separated from internal logic circuitry. This structure supports reduction of cross-channel interference in dense discrete signal environments.\u003c\/p\u003e\n\u003cp\u003eIn process control systems utilizing 24 VDC switching devices, the module operates with input buffering and signal conditioning prior to backplane transmission. The 2 kV AC dielectric withstand rating defines insulation boundary integrity between field wiring and control system electronics under transient voltage conditions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the SDV144-S33 support hot-swapping in a live system?\u003c\/strong\u003e\u003cbr\u003eA: Hot-swap capability is dependent on system rack design; the module itself interfaces via backplane connector and does not define standalone hot-insertion behavior.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the significance of the 40 ms input response time?\u003c\/strong\u003e\u003cbr\u003eA: The 40 ms maximum response defines worst-case state detection delay for ON\/OFF transition recognition across all 16 channels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are channels individually isolated?\u003c\/strong\u003e\u003cbr\u003eA: The design specifies module-level isolation with grouped input wiring; individual channel isolation is not indicated.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure all field wiring is terminated according to 24 V DC discrete input standards, with correct polarity and secure terminal torque as defined by the rack system specification.\u003c\/p\u003e\n\u003cp\u003eMaintain separation between field signal cables and power lines to reduce electromagnetic coupling in high-density control cabinets.\u003c\/p\u003e\n\u003cp\u003eVerify dielectric integrity before energizing by performing insulation resistance checks consistent with 2 kV AC rated isolation boundary requirements.\u003c\/p\u003e\n\u003cp\u003eConfirm backplane seating alignment prior to powering the I\/O node to avoid connector pin stress or partial engagement.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":44139715428440,"sku":"SDV144-S33\/PRP","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/SDV144-S33PRP-2.jpg?v=1779677967","url":"https:\/\/www.industriaxplc.com\/products\/sdv144-s33-yokogawa-digital-input-module-datasheet-technical-manual","provider":"IndustriaX Limited","version":"1.0","type":"link"}