{"product_id":"allen-bradley-1771-nt1-plc-5-thermocouple-analog-input-module","title":"Allen-Bradley 1771-NT1 PLC-5 Thermocouple Analog Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1771-NT1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a specialized thermocouple input module within the Allen-Bradley PLC-5 ecosystem. It interfaces directly with temperature sensors to provide high-resolution thermal data to the processor, supporting both millivolt (mV) and standard thermocouple signals. This module plays a critical role in thermal processing, furnace control, and environmental monitoring applications. We provide this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and factory-original\u003c\/strong\u003e, ensuring that your legacy control systems maintain laboratory-grade temperature accuracy without the drift associated with used or refurbished components.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1771-NT1 utilizes advanced filtering to process low-level analog signals in electrically noisy industrial environments.\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\u003eInput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eThermocouple \/ Millivolt (mV)\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 Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSignal Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±100 mV\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\u003ePLC-5 (1771 Universal I\/O)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Category\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAnalog Input\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\u003e1771 Universal I\/O Chassis\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBackplane Powered\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\u003e1.50 lbs (0.68 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\u003ePrecision Signal Conditioning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1771-NT1 handles the micro-volt variations produced by thermocouples. Its internal circuitry compensates for non-linear sensor curves, delivering accurate temperature readings directly to the PLC data table for immediate logic execution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Cold Junction Compensation (CJC):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module automatically accounts for ambient temperature variations at the terminal connection point. This hardware-level compensation eliminates the need for external reference junctions, simplifying field wiring and increasing overall loop accuracy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Noise Rejection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module incorporates differential inputs and digital filtering to suppress 50\/60 Hz line noise. This ensures stable temperature readings even when the thermocouple wires run near high-voltage motor leads or switching power supplies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtended System Longevity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAs a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal part, the 1771-NT1 provides a drop-in replacement for failed legacy units. It avoids the compatibility issues and calibration errors common with modern third-party signal converters, allowing you to maintain your existing validated control logic.\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 the 1771-NT1 require a specific wiring arm?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. You must use the 1771-WN wiring arm to connect your field thermocouples. The wiring arm allows you to replace the module without disconnecting any field wires, drastically reducing maintenance downtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhich thermocouple types does this module support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1771-NT1 supports standard thermocouple types (such as J, K, T, E, R, S, and B) as well as direct ±100 mV signals. You configure the specific sensor type via the PLC-5 block transfer instructions (BTR\/BTW).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the advantage of \"Brand New\" stock for a discontinued 1771 module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDiscontinued analog modules often suffer from \"component aging,\" where internal reference voltages drift over time. Our\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBrand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eunits come from original factory-sealed stock, guaranteeing that the internal electronics meet the original manufacturer’s calibration specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I troubleshoot a \"Channel Fault\" on the 1771-NT1?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCheck the status bits in the block transfer read (BTR) file. The module identifies open-circuit conditions (broken thermocouple wires) or out-of-range signals per channel, allowing for rapid field-side diagnostics.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52847530934581,"sku":"1771-NT1","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1771-NT1.png?v=1778223395","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1771-nt1-plc-5-thermocouple-analog-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}