{"product_id":"allen-bradley-1746-ni4-analog-i-o-module-slc-500-series","title":"Allen-Bradley 1746-NI4 Analog I\/O Module-SLC 500 Series","description":"\u003ch2\u003eProduct Introduction\u003c\/h2\u003e\u003cp\u003eWhen upgrading aging analog input modules in your SLC 500 system, the \u003cstrong\u003eAllen-Bradley 1746-NI4\u003c\/strong\u003e provides a cost-effective and reliable solution. This Analog I\/O Module offers four non-isolated differential channels, user-selectable for voltage or current inputs, and occupies a single slot in the chassis. Its 16-bit resolution and fast update time make it ideal for precise monitoring and control applications.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1746-NI4\u003c\/strong\u003e delivers consistent performance across key parameters:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5 V)\u003c\/td\u003e\n\u003ctd\u003e25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24 V DC)\u003c\/td\u003e\n\u003ctd\u003e85 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Range\u003c\/td\u003e\n\u003ctd\u003e-20 to +20 mA or -10 to +10 V dc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Time\u003c\/td\u003e\n\u003ctd\u003e512 microseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Response\u003c\/td\u003e\n\u003ctd\u003e60 milliseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBandwidth\u003c\/td\u003e\n\u003ctd\u003e10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Type\u003c\/td\u003e\n\u003ctd\u003eDelta–Sigma Modulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Lengths\u003c\/td\u003e\n\u003ctd\u003e0.5, 1, 2.5, or 5.0 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Slot\u003c\/td\u003e\n\u003ctd\u003eAny I\/O slot except slot 0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThese specifications ensure the \u003cstrong\u003e1746-NI4\u003c\/strong\u003e integrates smoothly into existing SLC 500 architectures.\u003c\/p\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1746-NI4\u003c\/strong\u003e excels in process monitoring, such as temperature and pressure sensing in chemical plants, and flow control in water treatment facilities. Its differential inputs reject common-mode noise, making it suitable for electrically noisy environments like manufacturing floors.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThis module works with both fixed and modular SLC 500 controllers. It communicates via the backplane and requires no additional protocol converters. Standard cable lengths of 0.5 to 5.0 meters simplify wiring in control panels.\u003c\/p\u003e\u003ch2\u003eTroubleshooting \u0026amp; Common Issues\u003c\/h2\u003e\u003cp\u003eA frequent issue is connecting a voltage source to a channel configured for current input. This can cause incorrect readings or module damage. Always verify DIP switch settings on the circuit board before power-up. The built-in LED indicators per channel assist in quick diagnostics.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the \u003cstrong\u003e1746-NI4\u003c\/strong\u003e, confirm your SLC 500 chassis type and available slot. Ensure your controller firmware supports this module revision. For genuine Allen-Bradley 1746-NI4 stock and fast shipping, rely on UBEST Automation. \u003cem\u003eNote: This product is also available at ubest101.myshopify.com.\u003c\/em\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44403720388707,"sku":"1746-NI4","price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1746-NI4_4__2.jpg?v=1785005773","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1746-ni4-analog-i-o-module-slc-500-series","provider":"PLC Source PRO","version":"1.0","type":"link"}