{"product_id":"allen-bradley-1746-ni8-analog-i-o-module-flexible-analog-i-o","title":"Allen-Bradley 1746-NI8 Analog I\/O Module - Flexible Analog I\/O","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eWith its 16-bit resolution and fast 6 ms update time, the \u003cstrong\u003eAllen-Bradley 1746-NI8\u003c\/strong\u003e Analog I\/O Module delivers precise analog signal conversion for time-critical SLC 500 applications. This \u003cstrong\u003e1746-NI8\u003c\/strong\u003e module provides eight individually selectable voltage or current input channels, reducing the need for multiple modules and simplifying wiring. By integrating this module into your control system, you achieve lower total cost of ownership through reduced downtime and improved process accuracy.\u003c\/p\u003e\u003ch2\u003eKey Technical Specifications\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1746-NI8\u003c\/strong\u003e offers the following critical parameters from the product datasheet:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 8 non-isolated differential channels; voltage or current selectable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Signal Category:\u003c\/strong\u003e -20 to +20 mA or -10 to +10 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 16 bits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate Time:\u003c\/strong\u003e 6 milliseconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBandwidth:\u003c\/strong\u003e 1-75 Hz with programmable filter frequencies (1, 2, 5, 10, 20, 50, 75 Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Current:\u003c\/strong\u003e 200 mA at 5 V DC, 100 mA at 24 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Power Consumption:\u003c\/strong\u003e 14 Watts maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep Response:\u003c\/strong\u003e 0.75-730 milliseconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e 250 Ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Formats:\u003c\/strong\u003e Engineering Units, Scaled for PID, Proportional Counts (-32,768 to +32,767), Proportional Counts (User Defined Range, Class 3 only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Indicators:\u003c\/strong\u003e 9 green status LEDs (8 for channels, 1 for module)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Size:\u003c\/strong\u003e 14 AWG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e 750 V DC \/ 530 V AC tested for 60 seconds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReal-World Applications\u003c\/h2\u003e\u003cp\u003eIndustries using the \u003cstrong\u003e1746-NI8\u003c\/strong\u003e benefit from its fast conversion and flexible input ranges. Typical use cases include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Monitoring:\u003c\/strong\u003e In chemical plants, the 1746-NI8 reads 4-20 mA signals from pressure and flow transmitters with 16-bit accuracy, enabling precise control loop tuning and reducing material waste.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine Automation:\u003c\/strong\u003e For packaging machinery, the module's 6 ms update time allows rapid detection of analog sensor changes, supporting high-speed quality inspection without delays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Management:\u003c\/strong\u003e The 0-10 V DC input range suits temperature and humidity sensors in HVAC systems, contributing to energy savings through accurate environmental control.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReliability and Cost Efficiency\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e1746-NI8\u003c\/strong\u003e module performs continuous autocalibration, maintaining measurement accuracy over time and reducing calibration downtime. Its low thermal dissipation of 3.4 Watts and wide operating temperature range (0 to 60°C) ensure stable operation even in demanding industrial environments. By choosing the \u003cstrong\u003eAllen-Bradley 1746-NI8\u003c\/strong\u003e, you minimize spare part inventory and prolong the life of your SLC 500 system, delivering a strong return on investment.\u003c\/p\u003e\u003ch2\u003eCompatibility and System Integration\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e1746-NI8\u003c\/strong\u003e installs in any I\/O slot (except slot 0) of SLC 500 fixed or modular chassis. It is compatible with SLC 5\/01, 5\/02, 5\/03, 5\/04, and 5\/05 processors. For advanced data handling, Class 3 operation is supported on SLC 5\/02 and later processors. The module uses a removable 18-position terminal block for easy wiring and replacement. Cable requirements: Belden 8761 or similar, with up to 14 AWG wire per terminal.\u003c\/p\u003e\u003ch2\u003ePurchasing Guide\u003c\/h2\u003e\u003cp\u003eWhen ordering the \u003cstrong\u003eAllen-Bradley 1746-NI8\u003c\/strong\u003e, verify your system's backplane current capacity (200 mA at 5 V, 100 mA at 24 V). Consider adding a spare module to reduce potential downtime. UBEST Automation stocks genuine 1746-NI8 modules and offers competitive pricing. For bulk orders or technical inquiries, contact our team at ubest101.myshopify.com.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default","offer_id":44403721240675,"sku":"1746-NI8","price":265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/1746-NI8_1__E5_89_AF_E6_9C_AC_2.jpg?v=1785005888","url":"https:\/\/www.plcsourcepro.com\/products\/allen-bradley-1746-ni8-analog-i-o-module-flexible-analog-i-o","provider":"PLC Source PRO","version":"1.0","type":"link"}