{"product_id":"1794-ie8h-8-channel-hart-module-allen-bradley","title":"1794-IE8H 8-Channel HART Module Allen-Bradley","description":"\u003ch2\u003e\u003cstrong\u003eAllen-Bradley 1794-IE8H Flex I\/O HART Analog Input Module\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eHART Communication and Advanced Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHART Protocol Support:\u003c\/strong\u003e The \u003cspan style=\"color: #c62828;\"\u003e\u003cstrong\u003e1794-IE8H\u003c\/strong\u003e fully supports the Highway Addressable Remote Transducer (HART) protocol\u003c\/span\u003e. This open protocol enables digital communication over traditional 4-20 mA analog instrumentation loops, allowing access to additional device data and operational status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent Diagnostics:\u003c\/strong\u003e The built-in local microprocessor provides advanced capabilities including \u003cspan style=\"color: #c62828;\"\u003eremote transmitter alarms, lead breakage detection, and overrange\/underrange alarms\u003c\/span\u003e. Users can independently program data ranges in channel groups for flexible configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus Indicators:\u003c\/strong\u003e The module features comprehensive visual feedback with 8 red fault indicators, 8 yellow channel indicators, and 1 green power indicator. These LEDs help operators quickly identify channel status and system health at a glance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications and Performance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Channels:\u003c\/strong\u003e The \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e offers \u003cspan style=\"color: #c62828;\"\u003eeight (8) single-ended, non-isolated inputs\u003c\/span\u003e that support 0-20 mA and 4-20 mA analog signal ranges. The default input range is 0 to 20 mA for immediate deployment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Resolution:\u003c\/strong\u003e This module delivers exceptional precision with 16-bit resolution for unipolar operation and 15-bit resolution for bipolar configuration. This high resolution ensures accurate monitoring of critical process variables.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e It maintains an absolute accuracy of 0.1% of full scale at 20 °C (68 °F). The accuracy drift with temperature remains within 0.05% of full scale across the entire 0 °C to 55 °C (32 to 131 °F) operating range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse Time:\u003c\/strong\u003e The step response to reach 99% of the final value is 80 milliseconds. This rapid response allows for timely detection of process changes and alarms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfigurable Features:\u003c\/strong\u003e Users can easily configure the input filter cutoff frequency, fault mode, data format, high\/low error levels, and remote transmitter error correction. All configurations are software-selectable without physical switches or jumpers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Requirements:\u003c\/strong\u003e The module draws 80 mA from the 5V DC FlexBus and 190 mA from the 24V DC external supply. It requires an external DC supply voltage range of 19.0 to 31.2V DC (including 5% AC ripple) with a nominal 24V DC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctional Data Range:\u003c\/strong\u003e The \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e maintains a functional data range greater than 23V at 0 mA and greater than 17V at 22 mA, ensuring reliable operation across the full signal spectrum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Specifications:\u003c\/strong\u003e It operates in temperatures from -20 to 55 °C (-4 to 131 °F) and withstands vibration of 2g at 10 to 500 Hz. The module handles operating and non-operating shock of 15g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e Maximum power dissipation is 3.9W at 31.2V DC, with thermal dissipation of 13.5 BTU\/hour under the same conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e While there is no isolation between individual channels, the module provides 50V continuous isolation voltage between the field side and system. It features basic insulation type routinely tested at 850V DC for 1 second.\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 the Allen-Bradley 1794-IE8H a genuine new product?\u003c\/strong\u003e\u003cbr\u003eYes, we supply the \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e as a brand new, original Allen-Bradley product in factory-sealed condition. We never provide used or counterfeit items.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat terminal bases work with the 1794-IE8H module?\u003c\/strong\u003e\u003cbr\u003eThe \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e requires either the \u003cstrong\u003e1794-TB3G\u003c\/strong\u003e or \u003cstrong\u003e1794-TB3GS\u003c\/strong\u003e terminal base. These bases provide the necessary connections for HART communication and analog input wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I use this module without HART functionality?\u003c\/strong\u003e\u003cbr\u003eYes, the \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e functions as a standard analog input module when you do not need HART communication. It reads 0-20 mA and 4-20 mA signals with exceptional 16-bit resolution even without using the HART protocol.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow do I configure the input filter and alarms?\u003c\/strong\u003e\u003cbr\u003eAll configuration for the \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e is software-selectable through your control system. You can program the input filter cutoff, fault mode, data format, and error levels without opening the panel or adjusting physical switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the lead breakage detection feature?\u003c\/strong\u003e\u003cbr\u003eThe \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e continuously monitors field wiring integrity. If it detects a broken lead, it triggers an alarm through the red fault indicators and reports the condition to your control system for immediate operator attention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo you have the 1794-IE8H in stock?\u003c\/strong\u003e\u003cbr\u003eYes, we maintain inventory of the \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e module. We typically process and ship orders within 5 business days using DHL, UPS, or FedEx based on your location and preference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is your return policy?\u003c\/strong\u003e\u003cbr\u003eWe offer a 30-day return window for the \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e provided the item remains in its original, unused condition with all packaging intact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes this module work with Profibus networks?\u003c\/strong\u003e\u003cbr\u003eYes, the \u003cstrong\u003e1794-IE8H\u003c\/strong\u003e works with Profibus networks but requires the specific Profibus adapter with catalog number \u003cstrong\u003e1794-APBDV1\u003c\/strong\u003e only. Other adapters may not support HART functionality with this module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eContact Information Inquiries: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e , \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003ePartner \u003ca href=\"https:\/\/www.nex-auto.com\/\"\u003eNexAuto Technology Limited : https:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45778238374049,"sku":"1794-IE8H","price":214.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/1794-IE8H.jpg?v=1772444919","url":"https:\/\/www.autonexcontrol.com\/pl\/products\/1794-ie8h-8-channel-hart-module-allen-bradley","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}