{"product_id":"st4-d-yokogawa-interface-module-card","title":"ST4*D Yokogawa Interface Module Card","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa ST4*D\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eST4*D\u003c\/strong\u003e Multi-Status Input Card, operates as a dedicated hardware component for discrete status monitoring and relay contact switching within Yokogawa CENTUM-XL and u-XL DCS platforms. It accepts non-voltage contact or open-collector input signals and drives configurable relay outputs across a high-density 16-card nest structure.\u003c\/p\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\u003eST4*D\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\u003e0.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e25 mm x 178 mm x 51 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC +\/-10% (Horizontal) \/ 85-132 VAC, 170-264 VAC, 24 VDC +\/-10% (Vertical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMulti-Status Input Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Types\u003c\/td\u003e\n\u003ctd\u003eNon-voltage contact, Open collector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Contact Types\u003c\/td\u003e\n\u003ctd\u003eConfigurable Normally Open (N.O.), Normally Closed (N.C.), or Form-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Form Factor\u003c\/td\u003e\n\u003ctd\u003eNest-mounting type (Up to 16 cards per nest), Horizontal or Vertical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisual Indicators\u003c\/td\u003e\n\u003ctd\u003eFront-panel LED relay operation indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and DCS Integration\u003c\/h3\u003e\n\u003cp\u003eThe ST4*D card features channel-to-channel isolation architecture designed to prevent ground loops and shield internal system buses from field-side electrical surges. Non-voltage and open-collector field inputs pass through high-speed isolation stages before energizing the output relay matrix. The board's relay outputs can be mapped as Normally Open, Normally Closed, or Form-C contacts, providing physical signal translation for control units across CENTUM-XL and u-XL system architectures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What input contact formats can be wired directly to the ST4D input channels?\u003c\/p\u003e\n\u003cp\u003eA: The ST4D accepts non-voltage dry contacts and transistor open-collector outputs directly from field devices.\u003c\/p\u003e\n\u003cp\u003eQ: How do power supply requirements differ between mounting orientations?\u003c\/p\u003e\n\u003cp\u003eA: Horizontally mounted configurations accept 24 VDC +\/-10% power, whereas vertically mounted assemblies accommodate 24 VDC +\/-10%, 85-132 VAC, or 170-264 VAC line inputs depending on backplane selection.\u003c\/p\u003e\n\u003cp\u003eQ: How is the physical operation of individual channels verified on the card?\u003c\/p\u003e\n\u003cp\u003eA: Front-panel LED indicators illuminate corresponding to each channel state to provide real-time visual confirmation of relay energization.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Protection:\u003c\/strong\u003e Always ground yourself with an anti-static wrist strap before touching the module to prevent electrostatic damage to internal components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNest Insertion:\u003c\/strong\u003e Ensure the nest chassis power is turned off before inserting or removing the card from the mounting rack. Slide the module squarely along the guide rails until fully seated in the backplane connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Practices:\u003c\/strong\u003e Route dry contact field wiring separately from high-voltage AC utility wiring to reduce induced electrical noise on open-collector lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Grounding:\u003c\/strong\u003e Connect cable shields and rack framework directly to the dedicated instrument earth system to maintain single-point isolation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53305353699637,"sku":"ST4*D","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/ST4D.png?v=1786937448","url":"https:\/\/www.5gplc.com\/products\/st4-d-yokogawa-interface-module-card","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}