{"product_id":"allen-bradley-1794-if4i-flex-i-o-isolated-input-analog-module","title":"Allen-Bradley 1794-IF4I Flex I\/O Isolated Input Analog Module","description":"\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\u003cp\u003eWith a 16-bit resolution and four isolated analog input channels, the Allen-Bradley 1794-IF4I Flex I\/O Isolated Input Analog Module provides precise measurement for voltage and current signals. This module is part of the Flex I\/O family and supports a wide range of input types including 0-20 mA, 4-20 mA, ±20 mA, ±10 VDC, 0-10 VDC, ±5 VDC, and 0-5 VDC, all user-configurable. It operates on a nominal 24 VDC external supply and features a sigma-delta conversion type for accurate data acquisition.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications Breakdown\u003c\/h2\u003e\u003cp\u003eKey specifications of the Allen-Bradley 1794-IF4I ensure reliable performance in demanding industrial environments:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 4 isolated channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 16 bits unipolar; 15 bits plus sign bipolar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Signal Types:\u003c\/strong\u003e 0-20 mA, 4-20 mA, ±20 mA, ±10 VDC, 0-10 VDC, ±5 VDC, 0-5 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal DC Supply:\u003c\/strong\u003e 24 VDC nominal, range 19.0–31.2 VDC (including 5% AC ripple)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexBus Current:\u003c\/strong\u003e 50 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e 2.0 W maximum at 31.2 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Dissipation:\u003c\/strong\u003e 6.8 BTU\/hour maximum at 31.2 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e 120 V continuous (depends on terminal base)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0 to 55°C (32 to 131°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e –40 to 85°C (–40 to 185°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration:\u003c\/strong\u003e 5g at 10–500 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Shock:\u003c\/strong\u003e 30g\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese specs make the 1794-IF4I suitable for high-accuracy analog input applications in control systems.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1794-IF4I is ideal for process control, manufacturing automation, and monitoring systems that require isolated analog measurements. Examples include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMonitoring pressure transmitters and flow meters using 4-20 mA loops.\u003c\/li\u003e\n\u003cli\u003eReading temperature sensors with voltage output signals.\u003c\/li\u003e\n\u003cli\u003eAcquiring variable-speed drive feedback signals with high resolution.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIts isolated channels reduce noise and protect sensitive electronics from ground loops.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eThe 1794-IF4I mounts easily on a DIN rail and is compatible with terminal bases such as 1794-TB2, 1794-TB3, 1794-TB3S, and 1794-TBN. Wire size is determined by the installed base. Ensure the external 24 VDC supply is within the specified range. The module includes a bi-colored OK LED for status indication: green for normal operation (or power-up), red for hardware failure.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe Allen-Bradley 1794-IF4I integrates seamlessly with Flex I\/O systems and communicates via the FlexBus backplane. It works with Rockwell Automation controllers and supports various terminal bases for wiring flexibility. Always verify compatibility with your existing I\/O architecture.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the 1794-IF4I, consider the required terminal base, external power supply, and input signal types. For expert advice and availability, contact UBEST Automation at ubest101. Our inventory ensures fast delivery for your automation spare parts needs.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44403915784291,"sku":"1794-IF4I","price":212.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1794-IF4IXT_3.jpg?v=1785012771","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1794-if4i-flex-i-o-isolated-input-analog-module","provider":"PLC Source PRO","version":"1.0","type":"link"}