{"product_id":"1771-ixhr-allen-bradley-plc-5-high-resolution-thermocouple-millivolt-input-module","title":"1771-IXHR | Allen Bradley | PLC 5 High-Resolution Thermocouple\/Millivolt Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1771-IXHR\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides high-precision temperature and millivolt sensing for legacy PLC-5 control systems. This module interfaces directly with various thermocouple types and millivolt sources, converting low-level analog signals into high-resolution digital data. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal stock, featuring a factory-applied conformal coating to ensure long-term stability in corrosive or high-humidity industrial atmospheres.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1771-IXHR utilizes a high-speed backplane interface to deliver precise thermal telemetry across eight channels.\u003c\/p\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\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\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Resolution Thermocouple \/ Millivolt Input\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Floating Differential Channels\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 Bits + Sign (1.0°C or 1.0°F per bit)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChannel Update Rate\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e25 ms for all 8 channels\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\u003cspan class=\"math-inline\"\u003e$\\pm$\u003c\/span\u003e99.99 mV\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eThermocouple Types\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eType B, E, J, K, R, S, T\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eData Format\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNatural Binary\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\u003e750 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWiring Arm\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1771-WH\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtective Coating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eConformal Coated\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRack Mountable (1771 Universal Chassis)\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\u003eUltra-Fast Thermal Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a channel update rate of 25 ms for all eight inputs, the 1771-IXHR captures rapid temperature fluctuations that standard analog modules might miss. This speed enables tighter PID control loops in high-precision heat treatment and chemical reaction processes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFloating Differential Inputs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module employs eight floating differential inputs to reject common-mode noise. This architecture prevents ground loops and electrical interference from distorting sensitive millivolt signals, even in environments with heavy motor switching or high-frequency induction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCorrosion Resistance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe factory conformal coating protects internal circuitry against airborne contaminants, moisture, and chemical vapors. This hardware hardening makes the 1771-IXHR an ideal choice for wastewater treatment, oil and gas, and pulp and paper facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Resolution Accuracy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 15-bit plus sign resolution ensures precise data conversion, translating to 1.0 degree per bit. This granularity allows the PLC-5 processor to make minute adjustments to fuel-to-air ratios or cooling valves, maximizing energy efficiency and product consistency.\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\u003eWhat thermocouple types does the 1771-IXHR support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module supports a wide array of industrial standards, including Type B, E, J, K, R, S, and T thermocouples. It also accepts direct\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$\\pm$\u003c\/span\u003e99.99 mV signals for non-standard sensing applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require an external power supply for the field side?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1771-IXHR draws its required 750 mA operating current directly from the 1771 backplane. This reduces wiring complexity and saves space in the remote I\/O chassis or local rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I hot-swap this module during operation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile the 1771 chassis supports \"Removal and Insertion Under Power\" (RIUP), you must exercise caution to prevent system glitches. Always verify that your PLC-5 program handles I\/O faults gracefully before removing the module from a live backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhy should I choose the \"IXHR\" version over standard thermocouple modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \"IXHR\" variant offers significantly higher resolution (15-bit) and faster update times compared to standard 1771-IX units. Furthermore, the standard conformal coating provides an extra layer of protection for legacy systems operating in harsh or aging facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52788335313205,"sku":"1771-IXHR","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1771-IXHR.png?v=1777270527","url":"https:\/\/www.5gplc.com\/products\/1771-ixhr-allen-bradley-plc-5-high-resolution-thermocouple-millivolt-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}