{"product_id":"adm51c-2-yokogawa-centum-analog-pulse-input-module","title":"ADM51C-2 Yokogawa CENTUM Analog Pulse Input Module","description":"\u003ch2\u003eYokogawa ADM51C-2 CENTUM Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-speed pulse and analog signal acquisition in CENTUM VP and Centum CS systems, the \u003cstrong\u003eYokogawa ADM51C-2\u003c\/strong\u003e (\u003cstrong\u003eADM51C\u003c\/strong\u003e Input Module) provides direct physical\/electrical execution. The hardware reads multiple input signal variations including contact inputs, voltage pulses, and current pulses across isolated channels, converting field data into digital registers over the system bus. By implementing selectable termination resistances and sub-millisecond pulse capture limits, the module handles high-frequency tracking loops directly across the sub-rack communication network.\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e25 mm x 229 mm x 76 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\u003eNot Specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Input Modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\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, current pulse (2-wire\/3-wire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit A\/D conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.1% of full scale\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\u003eWithstand Voltage\u003c\/td\u003e\n\u003ctd\u003e500 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003eMinimum 100 MOhm (500 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Signal Processing Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe hardware layout integrates physical tracking channels designed to execute the 4-20 mA HART loop protocol alongside high-frequency pulse train metrics. Internal channel-to-channel isolation networks form galvanic boundaries that limit common-mode signal noise, containing localized electrical distortions before they impact adjacent conversion chips. Integrated processing circuits run constant loop diagnostics to identify open-circuit behavior and field-side line shorts, updating internal health parameters every 10 ms to enforce deterministic tracking across the entire Field Control Station infrastructure.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How do the selectable internal shunt resistors modify channel execution during current pulse capture?\u003c\/p\u003e\n\u003cp\u003eA: The configuration switches match the module hardware interface to the specific current requirements of the field sensor. Adjusting the internal resistance parameters changes the current-to-voltage scale factor, protecting the 16-bit conversion matrix from over-saturation spikes.\u003c\/p\u003e\n\u003cp\u003eQ: What physical system protection occurs when the isolation barriers encounter an overvoltage spike?\u003c\/p\u003e\n\u003cp\u003eA: The internal galvanic isolation blocks withstand up to 500 VAC of potential difference between the field wiring terminals and the logic backplane. This stops transient line surges at the input interface, preventing thermal damage from migrating into the central processor logic.\u003c\/p\u003e\n\u003cp\u003eQ: What is the processing behavior when an input signal pulse drops below the 40 microsecond limit?\u003c\/p\u003e\n\u003cp\u003eA: The digital filtering logic rejects pulses narrower than 40 us as transient high-frequency noise. This suppression mechanism ensures that the internal pulse counting registers track only valid sensor transitions rather than induced line interference.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Ground Alignment:\u003c\/strong\u003e Lock the module securely into its assigned chassis slot, confirming that the rear grounding tabs engage directly with the clean metal frame of the rack to maintain a low-impedance path to earth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrain Wire Shield Matrix:\u003c\/strong\u003e Terminate all external instrument cable shield wires straight to a dedicated copper ground bus within the system cubicle. Never guide raw shield wiring through the high-density signal pin headers of the front connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparation of Signal Conductors:\u003c\/strong\u003e Enclose all low-voltage pulse and current loop wiring inside separate plastic trunking pathways, keeping a minimum distance separation of 200 mm from active high-power AC distribution or motor power lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Fastening Routine:\u003c\/strong\u003e Tighten the front-panel connector assembly using specified retention torque to prevent micro-disconnections caused by continuous structural vibration in harsh industrial operating areas.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43660822413402,"sku":"ADM51C-2","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/440._ffa9507b-adb5-4271-a409-8272fc17c665.jpg?v=1784083716","url":"https:\/\/www.spareoil.com\/ar\/products\/adm51c-2-yokogawa-centum-analog-pulse-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}