{"product_id":"allen-bradley-1790d-tn4c0-analog-current-input-module","title":"Allen-Bradley 1790D-TN4C0 Analog Current Input Module","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1790D-TN4C0 Analog Current Input Module\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCore Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Model:\u003c\/strong\u003e Manufactured by \u003cstrong\u003eAllen-Bradley\u003c\/strong\u003e, this module's part number is \u003cstrong\u003e\u003cspan style=\"color: #2c3e50;\"\u003e1790D-TN4C0\u003c\/span\u003e\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Channels \u0026amp; Signal:\u003c\/strong\u003e It features \u003cspan style=\"color: #e74c3c;\"\u003e4 single-ended, non-isolated channels\u003c\/span\u003e for analog current input.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Range:\u003c\/strong\u003e The software-configurable range is \u003cspan style=\"color: #e74c3c;\"\u003e0 to 20 milliamps\u003c\/span\u003e (4-20 mA default).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution \u0026amp; Accuracy:\u003c\/strong\u003e It offers \u003cspan style=\"color: #e74c3c;\"\u003e12-bit unipolar resolution\u003c\/span\u003e with an overall accuracy of \u003cspan style=\"color: #e74c3c;\"\u003e0.2% of full scale\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConversion Speed:\u003c\/strong\u003e The data conversion time is \u003cspan style=\"color: #e74c3c;\"\u003e10 milliseconds per channel\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e The input circuit presents a \u003cspan style=\"color: #e74c3c;\"\u003e249 Ohm\u003c\/span\u003e impedance to the signal source.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eElectrical \u0026amp; Performance Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBit Resolution:\u003c\/strong\u003e Provides fine resolution: \u003cspan style=\"color: #e74c3c;\"\u003e3.90 µA\/bit for 4-20 mA\u003c\/span\u003e and \u003cspan style=\"color: #e74c3c;\"\u003e4.88 µA\/bit for 0-20 mA\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply (DeviceNet):\u003c\/strong\u003e Requires \u003cspan style=\"color: #e74c3c;\"\u003e24V DC nominal (11-28.8V DC range)\u003c\/span\u003e, with max 1.2W dissipation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply (Field):\u003c\/strong\u003e Field power is \u003cspan style=\"color: #e74c3c;\"\u003e24V DC nominal (21.6-26.4V DC range)\u003c\/span\u003e, with max 1.5W dissipation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e Features photocoupler isolation (I\/O to logic) tested at \u003cspan style=\"color: #e74c3c;\"\u003e1250V AC RMS for 60 seconds\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration:\u003c\/strong\u003e This module is stable and \u003cspan style=\"color: #e74c3c;\"\u003edoes not require user calibration\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Resistance:\u003c\/strong\u003e Minimum \u003cspan style=\"color: #e74c3c;\"\u003e20 MΩ at 250V DC\u003c\/span\u003e between insulated circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Physical Attributes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Connections use a \u003cspan style=\"color: #e74c3c;\"\u003eterminal block (M3.0)\u003c\/span\u003e with a maximum screw torque of 7 lb-in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicators:\u003c\/strong\u003e Four \u003cspan style=\"color: #e74c3c;\"\u003ered\/green I\/O status LEDs\u003c\/span\u003e provide clear channel status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Format:\u003c\/strong\u003e Converts input current to \u003cspan style=\"color: #e74c3c;\"\u003e12-bit binary data (0000 to 0FFF hex)\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansion:\u003c\/strong\u003e The \u003cstrong\u003e1790D-TN4C0\u003c\/strong\u003e base can accommodate up to two discrete expansion modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Specified accuracy is maintained from \u003cspan style=\"color: #e74c3c;\"\u003e0 to 55 degrees Celsius\u003c\/span\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this module new and genuine Allen-Bradley?\u003c\/strong\u003e\u003cbr\u003eYes, we supply only \u003cspan style=\"color: #e74c3c;\"\u003e100% new and original\u003c\/span\u003e Allen-Bradley products like the \u003cstrong\u003e1790D-TN4C0\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat current signals can it read?\u003c\/strong\u003e\u003cbr\u003eIt is configurable for standard \u003cspan style=\"color: #e74c3c;\"\u003e4-20 mA\u003c\/span\u003e or full \u003cspan style=\"color: #e74c3c;\"\u003e0-20 mA\u003c\/span\u003e input ranges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow fast does it update readings?\u003c\/strong\u003e\u003cbr\u003eIt scans and converts each of its 4 channels in \u003cspan style=\"color: #e74c3c;\"\u003e10 milliseconds\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes it need calibration?\u003c\/strong\u003e\u003cbr\u003eNo, the module is designed for stable operation and \u003cspan style=\"color: #e74c3c;\"\u003edoes not require calibration\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is your shipping time and policy?\u003c\/strong\u003e\u003cbr\u003eWe process orders within \u003cspan style=\"color: #e74c3c;\"\u003e5 business days\u003c\/span\u003e and offer a \u003cspan style=\"color: #e74c3c;\"\u003e30-day return policy\u003c\/span\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat network does it use?\u003c\/strong\u003e\u003cbr\u003eThe \u003cstrong\u003e1790D-TN4C0\u003c\/strong\u003e is designed for easy connection to \u003cspan style=\"color: #e74c3c;\"\u003eDeviceNet\u003c\/span\u003e networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor integration support or to purchase the \u003cstrong\u003e1790D-TN4C0\u003c\/strong\u003e and other \u003cstrong\u003eCompactBlock LDX I\/O\u003c\/strong\u003e modules, contact our experts.\u003c\/p\u003e\n\u003cp\u003e© 2026 NexAuto Technology Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.nex-auto.com\/\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e\u003cbr\u003ePhone: \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":47266148647170,"sku":"1790D-TN4C0","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/1790D-TN4C0.jpg?v=1770283280","url":"https:\/\/www.nex-auto.com\/el\/products\/allen-bradley-1790d-tn4c0-analog-current-input-module","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}