{"product_id":"allen-bradley-1746sc-ini4vi-isolated-analog-input-module-slc-500","title":"Allen-Bradley 1746SC-INI4VI Isolated Analog Input Module | SLC 500","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1746SC-INI4VI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a high-precision, isolated analog input solution for the SLC 500 platform. This specialty module provides four channels of channel-to-channel isolation, protecting your control system from ground loops and high-voltage transients. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, ensuring peak signal integrity for mission-critical measurements in chemical processing, power generation, and water treatment applications.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\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\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIsolated Analog Input\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Isolated Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConversion Method\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSigma-Delta (High Precision)\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\u003e570 mA @ 5V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eThermal Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.25 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNormal Mode Rejection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e98 dB @ 50\/60 Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCalibration Interval\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAutomatic every 10 seconds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Filtering\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eProgrammable Notch Filters\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Location\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard 1746 I\/O Slot\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.50 lbs (0.23 kg)\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\u003eElimination of Ground Loops:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe channel-to-channel isolation architecture interrupts electrical paths between different field sensors. This design prevents common-mode noise and ground potential differences from corrupting sensitive 4-20mA or 0-10V signals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eContinuous Auto-Calibration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1746SC-INI4VI performs an internal calibration cycle every 10 seconds. This feature compensates for component aging and thermal drift automatically, ensuring long-term measurement accuracy without manual intervention or system downtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Noise Rejection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizing Sigma-Delta analog-to-digital conversion and programmable notch filters, the module achieves a 98 dB normal mode rejection ratio. It successfully filters out 50\/60 Hz line noise, which often plagues analog signals in high-interference industrial environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHardware-Level Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-quality isolation barriers shield the SLC backplane from field-side electrical faults. If a sensor fails or a cable shorts to a high-voltage line, the module confines the damage to the input circuitry, preserving the expensive CPU and other rack components.\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\u003eCan I mix voltage and current inputs on the same 1746SC-INI4VI module?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes. The isolated architecture allows you to configure individual channels for different signal types. This flexibility reduces the total module count in systems where you must monitor a variety of sensor outputs (e.g., pressure transmitters and flow meters) within a single rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require external calibration tools?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. The module features a self-calibrating circuit that executes every 10 seconds. This ensures the Sigma-Delta converter maintains its precision across varying cabinet temperatures without requiring periodic field calibration by technicians.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of \"Brand New\" for a legacy SLC 500 module?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAs a legacy product line, many units on the market are used \"pulls\" or refurbished. Our\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1746SC-INI4VI modules arrive in original factory packaging with untouched internal capacitors and circuit paths, guaranteeing the full MTBF (Mean Time Between Failure) expected of Allen-Bradley hardware.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I configure the input filtering?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYou set the programmable notch filters through the PLC software (RSLogix 500). Selecting the appropriate notch frequency (50 Hz or 60 Hz) allows the module to effectively cancel out ambient electrical noise specific to your regional power grid.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52774301565237,"sku":"1746SC-INI4VI","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1746SC-INI4VI.jpg?v=1776825617","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1746sc-ini4vi-isolated-analog-input-module-slc-500","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}