{"product_id":"yokogawa-sdv144-s53-b4d00-digital-input-module","title":"Yokogawa SDV144-S53\/B4D00 Digital Input Module","description":"\u003cp\u003eThe Yokogawa SDV144-S53\/B4D00 is a 16-channel digital input module designed to receive 24 VDC discrete signals in a Yokogawa control system. It features module isolation and is configured with a dual-redundant pressure clamp terminal block without a surge absorber. Its suffix codes identify the standard module type, terminal connection arrangement, and environmental specification.\u003c\/p\u003e\n\u003ch3\u003eFunctional Overview\u003c\/h3\u003e\n\u003cp\u003eThe SDV144 receives discrete input signals from field devices and makes their ON\/OFF states available to the control system. Its 16-channel configuration supports multiple discrete signal points through one module.\u003c\/p\u003e\n\u003cp\u003eModule isolation separates the input circuitry from other module circuits. This is relevant when checking electrical signal boundaries and the isolation requirements of the control-system configuration.\u003c\/p\u003e\n\u003ch3\u003eTerminal Block and Ordering Configuration\u003c\/h3\u003e\n\u003cp\u003eThe \/B4D00 option specifies a dual-redundant pressure clamp terminal block for digital input connections, without a surge absorber. This option identifies the terminal-block configuration rather than changing the module's 16-channel input function.\u003c\/p\u003e\n\u003cp\u003eThe supplied suffix information also identifies the terminal connection arrangement and environmental specification. These details should be retained when ordering a replacement, as a matching base model alone does not establish an identical configuration.\u003c\/p\u003e\n\u003ch3\u003eInput Signal Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe SDV144 is designed for no-voltage contact inputs, rather than conventional voltage-output field signals. The external 24 VDC supply provides the electrical conditions required for contact-state detection. The module interprets the contact resistance as an ON or OFF state.\u003c\/p\u003e\n\u003cp\u003eThis distinction matters when checking field wiring. Contact resistance must remain within the specified thresholds for the module to recognize the input state correctly.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSDV144-S53\/B4D00\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDigital Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003eNo-voltage contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e6 mA +\/- 20%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput ON Resistance\u003c\/td\u003e\n\u003ctd\u003e1 kOhm maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput OFF Resistance\u003c\/td\u003e\n\u003ctd\u003e100 kOhm minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e24 VDC +20% \/ -10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Response Time\u003c\/td\u003e\n\u003ctd\u003e40 ms maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Isolation\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWithstand Voltage\u003c\/td\u003e\n\u003ctd\u003e2 kVAC for 1 minute, between input signals and system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e290 mA maximum at 5 VDC; 140 mA maximum at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C (ISA Standard G3 configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Block\u003c\/td\u003e\n\u003ctd\u003eDual-redundant pressure clamp terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Absorber\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Block Model\u003c\/td\u003e\n\u003ctd\u003eSTB4D-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.36 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eModel and Suffix Code Identification\u003c\/h3\u003e\n\u003cp\u003eThe complete ordering number identifies the following configuration:\u003c\/p\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCode\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSDV144\u003c\/td\u003e\n\u003ctd\u003e16-channel digital input module, 24 VDC, module isolation\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\u003e5\u003c\/td\u003e\n\u003ctd\u003ePressure clamp terminal block or MIL cable connection, without explosion protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eISA Standard G3, temperature range -20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\/B4D00\u003c\/td\u003e\n\u003ctd\u003eDual-redundant pressure clamp terminal block without surge absorber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eThe \/B4D00 option corresponds to terminal block model STB4D-00. When using the module in a dual-redundant configuration, an additional module with the same specifications but without the terminal-block option code must be ordered.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the SDV144-S53\/B4D00 accept 24 VDC digital voltage signals directly?\u003c\/p\u003e\n\u003cp\u003eA: No. The SDV144 is a no-voltage contact input module. Its 24 VDC external supply supports contact-state detection; field wiring should follow the specified contact input arrangement.\u003c\/p\u003e\n\u003cp\u003eQ: What is the difference between \/B4D00 and \/B4D10?\u003c\/p\u003e\n\u003cp\u003eA: Both options specify dual-redundant pressure clamp terminal blocks. The \/B4D00 version does not include a surge absorber, whereas \/B4D10 includes one.\u003c\/p\u003e\n\u003cp\u003eQ: Does the \/B4D00 option mean that one module provides dual-redundant input processing?\u003c\/p\u003e\n\u003cp\u003eA: No. It identifies the dual-redundant terminal-block configuration. A dual-redundant module arrangement requires an additional SDV144 module with matching specifications but without the option code.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":69266191810802,"sku":"SDV144-S53\/B4D00","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/SDV144-S53B4D002.jpg?v=1794282332","url":"https:\/\/www.petrospare.com\/products\/yokogawa-sdv144-s53-b4d00-digital-input-module","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}