{"product_id":"allen-bradley-1746-ni8-slc-500-8-channel-high-resolution-analog-input-module","title":"Allen-Bradley 1746-NI8 SLC 500 8-Channel High-Resolution Analog Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1746-NI8\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehigh-density analog input module expands the capabilities of the Allen-Bradley SLC 500 platform by providing eight independent, high-resolution input channels. This\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal module interfaces with a wide variety of industrial sensors, including pressure transmitters, flow meters, and temperature transducers. It converts standard voltage and current signals into 16-bit digital values, allowing the SLC processor to execute precise PID control and complex data logging for demanding process applications.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1746-NI8 utilizes successive approximation and switched capacitor conversion technology to ensure high-speed signal integrity:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 High-Resolution Differential Inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16-bit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Input Ranges\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±10V dc, 1–5V dc, 0–5V dc, 0–10V dc\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Input Ranges\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0–20 mA, 4–20 mA, ±20 mA, 0–1 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 Ohms (Current)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e200 mA @ 5V; 100 mA @ 24V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eUpdate Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6 milliseconds (Maximum)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eData Formats\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEngineering Units, Scaled for PID, Proportional Counts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e9 Green LEDs (8 for Channel Status, 1 for Module Status)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCable Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1492-ACABLE*C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Signal Processing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 8-channel architecture doubles the input capacity of standard 4-channel modules. This allows engineers to monitor more field devices while occupying only a single I\/O slot, drastically reducing hardware costs and enclosure size.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Interference Filtering:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSeven user-selectable filter frequencies (ranging from 1 Hz to 75 Hz) allow the module to reject 50\/60 Hz electrical noise. This feature ensures stable data readings even in environments with heavy electromagnetic interference from motors and drives.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Data Scaling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module supports multiple data formats, including Engineering Units and Scaled-for-PID. This eliminates the need for complex scaling rungs in your ladder logic, saving CPU memory and decreasing scan times.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEfficient Thermal Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a thermal dissipation of only 3.4 Watts, the 1746-NI8 maintains low operating temperatures within the chassis. This thermal efficiency prevents localized hotspots, extending the lifespan of adjacent SLC 500 modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this 1746-NI8 unit a used or refurbished part?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. We offer only\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal Allen-Bradley stock. Every module arrives in factory-sealed packaging to guarantee authentic performance and compliance with original manufacturer specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mix voltage and current inputs on the same module?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes. You can configure each of the eight channels individually via the PLC software to accept either voltage or current signals, providing maximum flexibility for diverse sensor arrays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhere should I install the module in the SLC chassis?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1746-NI8 functions in any available I\/O slot of a 1746 chassis, except for Slot 0, which the CPU controller always occupies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module require external power for the analog loops?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module draws its operating power (200 mA @ 5V and 100 mA @ 24V) directly from the SLC backplane. However, you must provide external loop power for your field transmitters if they are not self-powered.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53203370344632,"sku":"1746-NI8","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1746-NI8.jpg?v=1774951120","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1746-ni8-slc-500-8-channel-high-resolution-analog-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}