{"product_id":"allen-bradley-1794-ie12-a-flex-i-o-analog-input-module","title":"Allen-Bradley 1794-IE12\/A FLEX I\/O Analog Input Module","description":"\u003ch2\u003eAllen-Bradley 1794-IE12\/A FLEX I\/O Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-IE12\/A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1794-IE12\u003c\/strong\u003e Analog Input Module, operates as a dedicated hardware component for analog signal acquisition within the Allen-Bradley FLEX I\/O system. It converts voltage and current field signals into 16-bit digital data for PLC and ControlLogix controller processing.\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\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1794-IE12\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eFLEX I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e12 single-ended analog inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Range\u003c\/td\u003e\n\u003ctd\u003e0-10 VDC, +\/-10 VDC, 0-20 mA, 4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Format\u003c\/td\u003e\n\u003ctd\u003e16-bit 2's complement signed integer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Type\u003c\/td\u003e\n\u003ctd\u003eSuccessive approximation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Current Demand\u003c\/td\u003e\n\u003ctd\u003e80 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3.0 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003eVoltage: \u0026gt;100 kOhm; Current: approximately 250 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e850 VDC field side to system side for 1 second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Terminal Bases\u003c\/td\u003e\n\u003ctd\u003e1794-TB3G, 1794-TB3GS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet \/ EtherNet-IP Deterministic Network and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe 1794-IE12\/A integrates into FLEX I\/O architectures through communication adapters supporting EtherNet\/IP, ControlNet, DeviceNet, and Remote I\/O networks. The module maintains distributed analog acquisition by transferring converted 16-bit values through the FLEXBus interface. The 12-channel input density allows cabinet-level signal concentration while maintaining independent field wiring connections through compatible terminal bases.\u003c\/p\u003e\n\u003cp\u003eThe module design supports modular installation where the terminal base remains connected to field wiring during module replacement. Backplane communication and power transfer are handled through the FLEX I\/O bus interface with an 80 mA at 5 VDC FlexBus current demand.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1794-IE12\/A be replaced without removing field wiring?\u003cbr\u003eA: Yes. The module mounts onto compatible FLEX I\/O terminal bases, allowing module replacement while field wiring remains terminated on the base assembly.\u003c\/p\u003e\n\u003cp\u003eQ: What analog input signals can the module process directly?\u003cbr\u003eA: The module accepts standard voltage inputs of 0-10 VDC and +\/-10 VDC, as well as current inputs of 0-20 mA and 4-20 mA.\u003c\/p\u003e\n\u003cp\u003eQ: What is the module conversion resolution?\u003cbr\u003eA: The module converts analog input signals using a 16-bit successive approximation conversion method and provides data in a 16-bit 2's complement format.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1794-IE12\/A on a compatible FLEX I\/O terminal base with correct mechanical alignment and secure mounting engagement. Verify that field signal wiring is separated from high-voltage power conductors to reduce electrical interference.\u003c\/p\u003e\n\u003cp\u003eUse shielded signal cable where required by the installation environment. Connect cable shields according to the plant grounding standard, avoiding multiple grounding points that can create unwanted ground loops. Confirm that voltage and current input channels are wired according to the selected signal type before applying system power.\u003c\/p\u003e\n\u003cp\u003eMaintain proper enclosure ventilation to keep the module within the specified operating temperature range. Verify FLEXBus power availability and communication adapter compatibility before commissioning the distributed I\/O station.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43768316493914,"sku":"1794-IE12\/A","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1794-IB32.jpg?v=1785479352","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1794-ie12-a-flex-i-o-analog-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}