{"product_id":"yokogawa-mdk2-s1-i-o-module","title":"Yokogawa MDK2 S1 I\/O Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa MDK2 S1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMDK2\u003c\/strong\u003e I\/O Module, operates as a dedicated hardware component for field signal interfacing and distributed I\/O execution within Yokogawa CENTUM DCS platforms.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCode Element\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification \/ Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMDK2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase model designation for industrial I\/O module series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS1\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStyle code 1 denoting hardware circuit layout and terminal block assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003eMDK2 S1\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\u003e0.45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e130 mm x 30 mm x 100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Interface\u003c\/td\u003e\n\u003ctd\u003eMulti-channel process I\/O interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eYokogawa CENTUM Series DCS\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 Signal Integration\u003c\/h3\u003e\n\u003cp\u003eThe MDK2 S1 I\/O module manages field signal acquisition across distributed control nodes. Equipped with channel-to-channel galvanic isolation, the module prevents ground loops and suppresses common-mode electrical noise across field loops. The hardware conditions 4-20 mA HART loop protocol signals and discrete I\/O channels, executing analog-to-digital data translation to preserve deterministic timing across system backplane buses.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the primary function of channel-to-channel isolation on the MDK2 S1 module?\u003c\/p\u003e\n\u003cp\u003eA: Galvanic channel isolation decouples field-side signal paths from internal backplane micro-logic, preventing stray ground potential differentials from causing cross-talk or measurement errors on adjacent channels.\u003c\/p\u003e\n\u003cp\u003eQ: Does the MDK2 S1 module support online replacement during active system operation?\u003c\/p\u003e\n\u003cp\u003eA: Hot-swapping is permitted only when installed in redundant I\/O rack configurations where secondary peer cards hold the active process loop state without interruption.\u003c\/p\u003e\n\u003cp\u003eQ: What supply voltage tolerance is required for powering the MDK2 S1 I\/O card?\u003c\/p\u003e\n\u003cp\u003eA: The module requires a regulated 24 VDC supply with an operating tolerance of +\/-10% (21.6 VDC to 26.4 VDC) under full operational load.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Slot Insertion:\u003c\/strong\u003e Align the printed circuit board guides with the rack slot tracks inside the DCS chassis. Push the module firmly into the backplane bus socket until the locking tabs snap into position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Checks:\u003c\/strong\u003e Verify that the 24 VDC supply voltage remains within operational limits before applying power to the module rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Shield Termination:\u003c\/strong\u003e Connect signal cable shields to the functional earth (FE) cabinet ground bar at a single point to prevent high-frequency noise interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Separation:\u003c\/strong\u003e Maintain a minimum distance of 300 mm between low-voltage I\/O cables and high-voltage AC power distribution lines inside the panel wire ducts.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53280768327989,"sku":"MDK2 S1","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/MDK2S1.png?v=1786677478","url":"https:\/\/www.5gplc.com\/products\/yokogawa-mdk2-s1-i-o-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}