{"product_id":"sdv144-s33-s2-yokogawa-digital-input-module","title":"SDV144-S33 S2 Yokogawa Digital Input Module","description":"\u003ch2\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSDV144-S33 S2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-reliability\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esafety digital input module\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesigned for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa ProSafe-RS Safety Instrumented System (SIS)\u003c\/strong\u003e. This\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eS2-revision\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodule provides\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e16 isolated digital input channels\u003c\/strong\u003e, serving as the primary sensing interface for safety-related discrete signals such as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eemergency stop inputs, pressure switch status, and valve position feedback\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eCertified for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSIL3 applications\u003c\/strong\u003e, the SDV144-S33 S2 performs\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003econtinuous internal diagnostics\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto validate all incoming signals before they are accepted by the safety logic solver. This ensures deterministic and fault-tolerant operation in high-risk industrial environments.\u003c\/p\u003e\n\u003cp\u003eA key feature of the module is its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eadvanced loop monitoring capability\u003c\/strong\u003e. It actively detects\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efield wiring faults\u003c\/strong\u003e, including\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eshort circuits and open loops\u003c\/strong\u003e, preventing latent failures that could otherwise compromise the integrity of the safety loop. Its rugged construction and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eJapanese engineering quality\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emake it well suited for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehigh-availability process industries\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhere uptime and personnel safety are critical.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\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\u003eChannel Density\u003c\/td\u003e\n\u003ctd\u003e16 channels, module-to-channel isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Rating\u003c\/td\u003e\n\u003ctd\u003e24 V DC (dry contact or voltage input)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Thresholds\u003c\/td\u003e\n\u003ctd\u003eON ≥ 18 V DC \/ OFF ≤ 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e4.1 mA per channel @ 24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL3 (IEC 61508 certified)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic Cycle\u003c\/td\u003e\n\u003ctd\u003eHardware self-test every 100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFault Detection\u003c\/td\u003e\n\u003ctd\u003eShort-circuit and open-loop monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMax. 350 mA @ 5 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W × H × D)\u003c\/td\u003e\n\u003ctd\u003e32 × 127 × 127 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e 0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe SDV144-S33 S2 is widely deployed in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePetrochemical and chemical processing plants\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower generation facilities\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOffshore oil \u0026amp; gas installations\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt functions as the standard digital input interface for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEmergency Shutdown (ESD)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFire \u0026amp; Gas (F\u0026amp;G)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esystems, delivering the rapid and reliable response required for safety-critical logic execution.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eS2 Revision Explanation\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eS2 suffix\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eidentifies a specific\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehardware revision level\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithin the Yokogawa ProSafe-RS product lifecycle. The SDV144-S33 S2 incorporates\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eoptimized electronic components\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethat provide\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eimproved thermal performance and long-term reliability\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecompared to earlier revisions, while ensuring compatibility with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eS2-specified safety racks and backplanes\u003c\/strong\u003e.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51706851230008,"sku":"SDV144-S33 S2","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/SDV144-S33_S22.jpg?v=1770256782","url":"https:\/\/www.automodulexpert.com\/bg\/products\/sdv144-s33-s2-yokogawa-digital-input-module","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}