{"product_id":"yokogawa-st2-d-digital-input-output-module-card","title":"Yokogawa ST2*D Digital Input\/Output Module Card","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa ST2*D\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eST2*D\u003c\/strong\u003e Digital Input\/Output Module Card, operates as a dedicated hardware component for contact signal insulation and high-density discrete I\/O interfacing within Yokogawa CENTUM-XL and u-XL DCS platforms. It isolates On-Off contact signals from push button switches and limit switches, outputting status signals directly to process controllers via 32 integrated channels.\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\u003eST2*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\u003e0.65 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e482.6 mm x 110 mm x 120.5 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\u003eSystem backplane powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e32 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCard Density\u003c\/td\u003e\n\u003ctd\u003eUp to 16 relay input\/output cards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-30 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003eMax 75% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eYokogawa CENTUM-XL, u-XL DCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Galvanic Isolation\u003c\/h3\u003e\n\u003cp\u003eThe ST2*D module incorporates channel-to-channel isolation architecture designed to suppress field-side switching noise and prevent ground potential differentials from damaging internal control bus lines. Galvanic isolation barriers maintain signal integrity across discrete input paths, isolating high-voltage contact spikes from sensitive system electronics. Integrated operational status LEDs provide physical verification of individual relay states during live industrial execution.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What physical indicators are available on the ST2D for channel status verification?\u003c\/p\u003e\n\u003cp\u003eA: The ST2D features front-panel LED indicators that display real-time operational status for each relay contact input\/output channel.\u003c\/p\u003e\n\u003cp\u003eQ: How does the ST2*D achieve electrical isolation from field switches?\u003c\/p\u003e\n\u003cp\u003eA: The module relies on internal signal insulation circuits that electrically separate On-Off contact inputs (such as limit switches and push buttons) from the internal system logic bus.\u003c\/p\u003e\n\u003cp\u003eQ: Can the ST2D be mounted in standard 19-inch racks?\u003c\/p\u003e\n\u003cp\u003eA: Yes, with a physical width of 482.6 mm, the ST2D module enclosure conforms to standard 19-inch rack mounting dimensions.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Protection:\u003c\/strong\u003e Wear a grounded ESD wrist strap prior to handling the module to protect internal components from electrostatic discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Limits:\u003c\/strong\u003e Install the module inside an enclosure that maintains operating ambient temperatures between 0 and 50 deg C and relative humidity below 75% non-condensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Separation:\u003c\/strong\u003e Route field contact wiring separately from high-voltage AC power lines to minimize induced electromagnetic interference on signal lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Ensure cabinet mounting frames and cable shielding are bonded to a dedicated low-impedance safety ground point.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53304327536949,"sku":"ST2*D","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/ST2D.png?v=1786936615","url":"https:\/\/www.5gplc.com\/products\/yokogawa-st2-d-digital-input-output-module-card","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}