{"product_id":"yokogawa-adm51c-2-centum-vp-digital-input-module","title":"Yokogawa ADM51C-2 Centum VP Digital Input Module","description":"\u003ch2\u003eYokogawa ADM51C-2 Field I\/O Digital Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for pulse count and dry contact signal processing in Yokogawa Centum CS and Centum VP platforms, the \u003cstrong\u003eYokogawa ADM51C-2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eADM51C-2\u003c\/strong\u003e Digital Input Module, provides direct physical\/electrical execution. It operates within the Field I\/O subsystem to acquire field device statuses from switches, relays, and sensors across high-density control topologies.\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\u003eADM51C-2\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\u003e0.1 kg (0.22 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e130 x 107.5 x 32.8 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\u003e0.3 A at 24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e32 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Types\u003c\/td\u003e\n\u003ctd\u003eDry contact, voltage pulse, current pulse (2-wire\/3-wire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency Range\u003c\/td\u003e\n\u003ctd\u003e0 to 10 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Update Period\u003c\/td\u003e\n\u003ctd\u003e10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Pulse Width\u003c\/td\u003e\n\u003ctd\u003e40 us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Level\u003c\/td\u003e\n\u003ctd\u003e3 to 24 VDC voltage pulse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelectable Shunt Resistor\u003c\/td\u003e\n\u003ctd\u003e200 ohm, 510 ohm, 1000 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Output\u003c\/td\u003e\n\u003ctd\u003eOpen collector transistor contact (30 VDC, 30 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 V AC channel-to-system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003eMinimum 100 M ohm at 500 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWithstand Voltage\u003c\/td\u003e\n\u003ctd\u003e500 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e10 to 90% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel Isolation and Processing Features\u003c\/h3\u003e\n\u003cp\u003eThe module incorporates robust channel-to-system galvanic isolation rated for 1500 V AC, preventing ground loops and suppressing high-voltage common-mode transients. For pulse processing tasks, the onboard hardware supports high-speed signal evaluation up to 10 kHz with minimum pulse detection down to 40 us. Integrated shunt resistor networks allow configurable termination for current-to-voltage signal conversion, maintaining signal integrity without external signal conditioning equipment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the field wiring limits for detecting dry contact state transitions?\u003c\/p\u003e\n\u003cp\u003eA: The module identifies an ON state when field circuit resistance drops to 150 ohm or less, and recognizes an OFF state when resistance exceeds 200 k ohm across the input terminal interface.\u003c\/p\u003e\n\u003cp\u003eQ: How does the auxiliary open-collector output behave during operation?\u003c\/p\u003e\n\u003cp\u003eA: The auxiliary output functions as a secondary status driver rated for maximum limits of 30 VDC and 30 mA, allowing real-time hardware status reflection to external alarm circuits or local panel indicators.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure complete power removal from the target node chassis prior to inserting the module into the backplane connector. Verify proper seating of the front connector assembly to ensure reliable contact engagement across all 32 channels. Connect signal cable shields to the designated system functional ground point at a single termination end to avoid parallel ground paths. Maintain separation between high-voltage power lines and signal wiring runs within the cabinet ducting to minimize electromagnetic interference on pulse-counting circuits.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43831964237914,"sku":"ADM51C","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/536.1_3b0374b2-7697-4cc9-b03b-cfb42333a278.jpg?v=1786502127","url":"https:\/\/www.spareoil.com\/products\/yokogawa-adm51c-2-centum-vp-digital-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}