{"product_id":"1756-of8h-controllogix-hart-analog-output-module-allen-bradley","title":"1756-OF8H ControlLogix HART Analog Output Module | Allen Bradley","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1756-OF8H\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a high-performance HART (Highway Addressable Remote Transducer) analog output module within the ControlLogix ecosystem. This module provides eight high-density differential channels to drive final control elements such as valves and actuators. It bridges the gap between digital control strategies and analog field devices, offering simultaneous communication of digital HART data alongside the 4-20mA analog signal.\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\u003eFeature\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\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen Bradley \/ Rockwell Automation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eControlLogix\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\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\u003eHART Analog Output\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Differential Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0-20 mA or 4-20 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e+\/- 10V DC\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\u003e15 to 16 Bits\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage: 0.1% \/ Current: 0.5% of range\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Draw\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e230 mA @ 5.1V DC \u0026amp; 230 mA @ 24V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50V Continuous\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRTB Requirements\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-TBCH or 1756-TBSH\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\u003eSuperior Signal Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1756-OF8H utilizes an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eR-Ladder DAC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econversion method. This architecture ensures monotonicity with no missing codes, providing smooth, linear control for sensitive modulation tasks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHART Connectivity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module eliminates the need for separate HART external hardware. It allows engineers to query device assets, monitor secondary variables, and perform remote calibration directly through the ControlLogix backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Circuit Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module includes overvoltage protection up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e+\/- 24V DC\u003c\/strong\u003e. This safeguard prevents internal component failure during accidental miswiring or field-side power surges.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Processing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e16-bit resolution\u003c\/strong\u003e, the 1756-OF8H delivers granular control. It translates complex IEEE 32-bit floating-point data into precise physical movements, optimizing the efficiency of PID control loops.\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\u003eDoes this 1756-OF8H module arrive in original packaging?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein the original factory-sealed Allen Bradley packaging to ensure maximum reliability and authenticity for your critical infrastructure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhich Removable Terminal Blocks (RTB) should I use for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module requires either the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-TBCH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Cage clamp) or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-TBSH\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Spring clamp). You must order these separately as they do not ship with the base module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module support open-circuit detection?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, but only for current output modes. To trigger an open-circuit detection alert, you must set the output to a value less than 0.1 mA.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this module for voltage-based actuators?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbsolutely. While optimized for 4-20mA HART loops, the 1756-OF8H also supports +\/- 10VDC signals, providing flexibility for various industrial drive interfaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53380030464184,"sku":"1756-OF8H","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1756-OF8H.jpg?v=1776842963","url":"https:\/\/www.globalpetroparts.com\/products\/1756-of8h-controllogix-hart-analog-output-module-allen-bradley","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}