{"product_id":"ic694mdl646b-ge-fanuc-pacsystems-rx3i-digital-input-module","title":"IC694MDL646B GE Fanuc PACSystems RX3i Digital Input Module","description":"\u003ch2\u003eGE Fanuc IC694MDL646B PACSystems RX3i Digital Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-speed discrete signal acquisition in PACSystems RX3i platforms, the \u003cstrong\u003eGE Fanuc IC694MDL646B\u003c\/strong\u003e (\u003cstrong\u003eIC694MDL646B\u003c\/strong\u003e Digital Input Module) provides direct physical\/electrical execution. This 32-point input module detects binary states from field devices such as proximity switches, pushbuttons, and limit sensors, processing updates into CPU %I memory locations with sub-millisecond response latency. The internal circuit design supports both positive logic (sourcing) and negative logic (sinking) wiring layouts across isolated input groups.\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\u003eIC694MDL646B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE Fanuc \/ Emerson\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.29 kg (0.64 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 cm x 13.0 cm x 13.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e80 mA to 120 mA at 5 VDC (backplane bus); 125 mA at 24 VDC (user supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e32 discrete channels (sourcing\/sinking)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e0 to 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Voltage\u003c\/td\u003e\n\u003ctd\u003e15.0 to 30.0 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Voltage\u003c\/td\u003e\n\u003ctd\u003e0.0 to 5.0 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e7 mA typical at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003eLess than 1 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Isolation\u003c\/td\u003e\n\u003ctd\u003eOptical isolation, 250 VAC continuous (field-to-logic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indicators\u003c\/td\u003e\n\u003ctd\u003eDedicated channel LEDs for ON\/OFF status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Architecture and Network Determinism\u003c\/h3\u003e\n\u003cp\u003eThe IC694MDL646B interfaces directly with the PACSystems RX3i parallel backplane, routing input status bits through high-speed optocouplers that protect controller logic from severe field transients. Maintaining backplane bus communication velocity across high-density I\/O racks, the module updates the central CPU input image table every scan cycle without adding network delay. Managing overall I\/O density scaling requires balancing the total backplane current draw across 5 VDC and 24 VDC bus rails when installing multiple 32-point cards. Integrated hardware registers preserve full firmware flash compatibility, allowing deterministic signal updates over Profinet or EtherNet\/IP networks configured on the master controller.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the IC694MDL646B operate with both sourcing and sinking field sensors on the same module?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module supports both positive logic (sourcing) and negative logic (sinking) devices, provided that all channels within a single isolated common group share the same voltage return configuration.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module support hot-swapping during active system operation?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The PACSystems RX3i universal backplane permits hot insertion and removal of the IC694MDL646B without interrupting controller execution or corrupting adjacent backplane bus communications.\u003c\/p\u003e\n\u003cp\u003eQ: What is the benefit of the sub-millisecond input response time?\u003c\/p\u003e\n\u003cp\u003eA: The response time of less than 1 ms enables high-speed signal capture, allowing the module to detect short-duration pulses and rapid mechanical switch transitions without missing scan cycles.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect field power sources prior to landing wiring conductors on the module connector to prevent accidental short circuits.\u003c\/li\u003e\n\u003cli\u003eRoute 24 VDC input signal cables through separate wire troughs isolated from high-voltage AC lines and variable frequency drive output cables.\u003c\/li\u003e\n\u003cli\u003eConnect input signal wiring to the appropriate terminal block or 37-pin connector, verifying that field common returns align with the selected sourcing or sinking configuration.\u003c\/li\u003e\n\u003cli\u003eAlign the card edge guides with the baseplate slot, press the module firmly into the backplane socket, and confirm that the top retaining latch locks into the rack frame.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":44573800628323,"sku":"IC694MDL646B","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/46_8cd3ac99-f778-4959-a950-847f27156d48.jpg?v=1789024501","url":"https:\/\/www.autocontrolglobal.com\/products\/ic694mdl646b-ge-fanuc-pacsystems-rx3i-digital-input-module","provider":"AutoControl Global","version":"1.0","type":"link"}