{"product_id":"allen-bradley-1746-fio4i-slc-500-fast-analog-2-input-2-output-i-o-module","title":"Allen-Bradley 1746-FIO4I SLC 500 Fast Analog 2 Input 2 Output I\/O Module","description":"\u003ch4\u003eDescription\u003cstrong\u003e \u003cbr\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe Allen-Bradley 1746-FIO4I is a fast analog I\/O module from the SLC 500 series. It provides two configurable analog inputs (0–10V DC or 0–20 mA) and two analog current outputs (0–20 mA) for precise process control.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 26.7428%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eNew\/Never Used\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 26.7428%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003ePLCs and Accessories\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003ePart Number\/Catalog No.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e1746-FIO4I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003eAnalog Combination Module\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eBackplane Current (5 Volts)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e55 milliamps\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eInput signals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e0-10 VDC; 0-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eBackplane Current (24 Volts)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e150 milliamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eTrack and Hold Time before conversion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e1.5 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eConversion method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003eSuccessive approximation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eBandwidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e7 kilohertz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eUpdate Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e512 microseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eConversion time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e7.5 µs every 512 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e12 bits in, 14 bits out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eInput resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003e12 bit\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eStep Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e100 milliseconds in, 2.5 milliseconds out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eOutput resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003e14-bit\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eConversion method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003eR-2R Ladder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eModule width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003eSingle slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 26.7428%; height: 19px;\"\u003e\u003cstrong\u003eCompatible Hardware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%; height: 19px;\"\u003eSLC 500 Fixed and Modular style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 26.7428%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.2572%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003e0.36 kgs\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About 1746-FIO4I\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe 1746-FIO4I is part of the Allen-Bradley SLC 500 product family, combining analog input and output functionality in a single module for efficient use of limited chassis slots. It features two differential analog inputs with 12-bit resolution and two analog outputs with 14-bit resolution, using successive approximation conversion for inputs and an R–2R ladder for outputs. With fast input response (7.5 µs conversion time every 512 µs) and a 100 µs step response, it is well-suited for capturing rapidly changing signals. This module consumes 55 mA from the 5V backplane and 150 mA from the 24V backplane, and is compatible with both fixed and modular SLC 500 systems. The 1746-FIO4I offers input accuracy of ±0.440% at 25 °C and ±0.750% at 60 °C, while its outputs achieve ±0.298% accuracy at 25 °C and ±0.541% across the full operating range. Designed with shielded cabling recommendations (Belden #8761), it ensures reliable performance in industrial automation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eModule type: Fast analog combination module providing both input and output functions in one slot.\u003c\/li\u003e\n\u003cli\u003eInputs: Two differential channels configurable for 0–10V DC or 0–20 mA current, with 12-bit resolution.\u003c\/li\u003e\n\u003cli\u003eOutputs: Two analog channels rated for 0–20 mA, using 14-bit R–2R ladder conversion for precise output control.\u003c\/li\u003e\n\u003cli\u003eConversion speed: Input conversion time of 7.5 µs every 512 µs with track-and-hold time of 1.5 µs, enabling fast response to signal changes.\u003c\/li\u003e\n\u003cli\u003eAccuracy: Input accuracy ±0.440% of full scale at 25 °C and ±0.750% at 60 °C; output accuracy ±0.298% at 25 °C and ±0.541% across 0–60 °C.\u003c\/li\u003e\n\u003cli\u003eBandwidth: 7 kHz input bandwidth supports high-speed data acquisition.\u003c\/li\u003e\n\u003cli\u003eBackplane current: Draws 55 mA at 5V DC and 150 mA at 24V DC from the chassis.\u003c\/li\u003e\n\u003cli\u003eExpansion compatibility: Works with both fixed (1747-L20, L30, L40) and modular style SLC 500 controllers, alongside multiple I\/O modules.\u003c\/li\u003e\n\u003cli\u003eStep response: Achieves 100 µs response for fast analog output changes.\u003c\/li\u003e\n\u003cli\u003eWiring: Supports shielded Belden #8761 cable with up to 2.5 mm² (14 AWG) wire size for noise-resistant signal transmission.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1746-FIO4I delivers the reliability and precision required for high-speed analog input\/output processing in Allen-Bradley SLC 500 automation systems.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":47010363081002,"sku":"1746-FIO4I","price":3501.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/1746-FIO4I.webp?v=1699533421","url":"https:\/\/iqelectro.com\/products\/allen-bradley-1746-fio4i-slc-500-fast-analog-2-input-2-output-i-o-module","provider":"IQElectro","version":"1.0","type":"link"}