{"product_id":"allen-bradley-1771-nt2-n-series-thermocouple-input-module","title":"Allen Bradley 1771-NT2 N-Series Thermocouple Input Module","description":"\u003ch2\u003eAllen Bradley 1771-NT2 N-Series Thermocouple Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen Bradley 1771-NT2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-NT2\u003c\/strong\u003e N-Series Thermocouple Input Module, operates as a dedicated hardware component for thermocouple signal acquisition within PLC-5 I\/O chassis platforms. The module provides eight isolated analog input channels for thermocouple and millivolt measurements with BDC or Natural Binary data formatting.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1771-NT2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.7 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane current: 1.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eN-Series Analog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e8 Inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eThermocouple \/ Millivolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Thermocouple Types\u003c\/td\u003e\n\u003ctd\u003eB, C, E, J, K, N, R, S, T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Range\u003c\/td\u003e\n\u003ctd\u003e-5 to +55 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resolution\u003c\/td\u003e\n\u003ctd\u003e0.95 microvolt\/bit for millivolt input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermocouple Resolution\u003c\/td\u003e\n\u003ctd\u003eType B\/R\/S: 0.03 deg C\/bit; Type E\/J\/K\/T: 0.1 deg C\/bit; Type C: 0.07 deg C\/bit; Type N: 0.03 deg C\/bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e0 Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Format\u003c\/td\u003e\n\u003ctd\u003eBDC or Natural Binary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eIsolated input channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRTP Compatibility\u003c\/td\u003e\n\u003ctd\u003e1771-RTP1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Arm Compatibility\u003c\/td\u003e\n\u003ctd\u003e1771-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical AC Signal Delay (Off)\u003c\/td\u003e\n\u003ctd\u003e45 +\/- 15 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical DC Signal Delay (Off)\u003c\/td\u003e\n\u003ctd\u003e50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eRack mountable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003ePLC-5 Thermocouple Signal Acquisition\u003c\/h3\u003e\n\u003cp\u003eThe 1771-NT2 provides thermocouple and millivolt signal conversion for PLC-5 control systems. The module accepts eight analog input channels and converts temperature-related voltage signals into digital data values transferred through the 1771 chassis backplane.\u003c\/p\u003e\n\u003cp\u003eThe module supports multiple thermocouple input types including B, C, E, J, K, N, R, S, and T configurations. High-resolution conversion parameters vary according to the selected thermocouple type and input measurement range.\u003c\/p\u003e\n\u003cp\u003eThe 1771-NT2 uses PLC-5 backplane bus communication for controller data exchange. The module supports BDC and Natural Binary data formats for compatibility with PLC-5 processor configurations and I\/O addressing structures.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Control Signal Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 1771-NT2 integrates isolated analog input processing with PLC-5 I\/O density scaling requirements. The isolated input design separates field thermocouple wiring from internal logic circuits to reduce electrical interference during temperature measurement.\u003c\/p\u003e\n\u003cp\u003eThe module uses PLC-5 deterministic backplane communication rather than Ethernet-based field networking. System integration requires correct rack addressing, slot configuration, and controller data table mapping.\u003c\/p\u003e\n\u003cp\u003eFirmware flash compatibility is not specified for this module generation. Hardware operation depends on PLC-5 processor compatibility and correct module configuration within the 1771 chassis environment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many thermocouple input channels are available on the 1771-NT2?\u003cbr\u003eA: The module provides eight isolated thermocouple\/millivolt input channels.\u003c\/p\u003e\n\u003cp\u003eQ: Which thermocouple types can be connected to the 1771-NT2?\u003cbr\u003eA: The module supports Type B, C, E, J, K, N, R, S, and T thermocouple inputs.\u003c\/p\u003e\n\u003cp\u003eQ: What backplane current does the 1771-NT2 require?\u003cbr\u003eA: The module requires 1.5 A from the PLC-5 1771 chassis backplane supply.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-NT2 module in a compatible 1771 I\/O chassis slot and verify slot keying before insertion. Connect thermocouple wiring through the approved 1771-WH wiring arm and confirm correct polarity for each thermocouple input channel.\u003c\/p\u003e\n\u003cp\u003eRoute thermocouple signal cables separately from power conductors, motor wiring, and high-frequency switching circuits. Use appropriate shield grounding practices according to site electrical standards to reduce noise coupling.\u003c\/p\u003e\n\u003cp\u003eThe module is open-type equipment and requires installation inside an enclosure suitable for the operating environment. Maintain environmental conditions within the specified operating temperature and non-condensing humidity limits.\u003c\/p\u003e\n\u003cp\u003eVerify thermocouple type configuration, PLC-5 data table mapping, and BDC or Natural Binary format selection before system commissioning.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43684783947866,"sku":"1771-NT2","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-NT22.jpg?v=1784617170","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-nt2-n-series-thermocouple-input-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}