{"product_id":"900g01-0202-honeywell-digital-input-module","title":"900G01-0202 | Honeywell | Digital Input Module","description":"\u003ch2\u003eHoneywell 900G01-0202 Digital Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for discrete signal acquisition in HC900 control architectures, the \u003cstrong\u003eHoneywell 900G01-0202\u003c\/strong\u003e (\u003cstrong\u003e900G01-0202\u003c\/strong\u003e digital input module) provides direct electrical execution of single‑ended contact monitoring, galvanic isolation boundaries, and low‑current state transitions.\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\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e900G01-0202\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e0.354 kg (shipping weight 2 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e137 mm H × 35.6 mm W (5.4 in × 1.4 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e5 V at 130 mA max; 24 V at 40 mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInputs per Module\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e16 single‑ended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInput Voltage Source\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e15 VDC nominal (supplied by controller)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eMax Contact Resistance\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e1000 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSwitching Current\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e2.6 mA nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eGalvanic Isolation\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003eField wiring to module logic\/backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOFF to ON Response Time\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e4 ms max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eON to OFF Response Time\u003c\/strong\u003e\u003c\/th\u003e\n\u003ctd\u003e6 ms max\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 HART\/Fieldbus Interaction\u003c\/h3\u003e\n\u003cp\u003eHoneywell DCS modules often operate adjacent to mixed‑signal hardware, and the 900G01-0202 maintains isolation boundaries that prevent discrete input transitions from coupling into analog or HART loops. The module’s single‑ended 15 VDC excitation is stabilized to avoid false triggering from superimposed HART frequencies on nearby wiring. In FOUNDATION Fieldbus or Profibus PA environments, wiring separation and grounding practices ensure that digital edge detection does not interfere with temperature modules using cold junction compensation (CJC) circuits.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 900G01-0202 be inserted or removed while the rack is powered?\u003c\/strong\u003e A: No. The module is not hot‑swappable. Backplane power must be removed before installation or removal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does contact resistance affect input detection?\u003c\/strong\u003e A: Contact resistance above 1000 ohms may prevent the module from reaching the required ON threshold, resulting in missed transitions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the module require external excitation voltage?\u003c\/strong\u003e A: No. The controller supplies the nominal 15 VDC required for input detection.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMaintain wiring within the specified contact resistance limits to ensure proper ON\/OFF recognition. Route discrete input wiring separately from high‑frequency or analog loops to reduce noise coupling. Shielded cable grounds should be bonded at a single point to avoid circulating currents. Ensure terminal engagement is secure and within the specified conductor size. When integrating with mixed‑signal HC900 racks, preserve isolation boundaries by maintaining proper spacing and grounding between discrete and analog modules.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48183730700478,"sku":"900G01-0202","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/900G01-0102_1.jpg?v=1782718417","url":"https:\/\/www.autooiltech.com\/ar\/products\/900g01-0202-honeywell-digital-input-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}