{"product_id":"1746-nt8-allen-bradley-slc-500-8-point-analog-input-module","title":"1746-NT8 Allen-Bradley SLC 500 8 Point Analog Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1746-NT8\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1746-NT8\u003c\/strong\u003e Analog Input Module, operates as a dedicated hardware component for thermocouple and millivolt signal acquisition within the SLC 500 control platform.\u003c\/p\u003e\n\u003ch3\u003eModule Identification\u003c\/h3\u003e\n\u003cp\u003eThe 1746-NT8 is an SLC 500 analog input module designed for temperature measurement applications using thermocouple and millivolt input signals. The module converts field analog signals into digital values for processing by an SLC 500 processor through the chassis backplane.\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Variant\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1746-NT8\u003c\/td\u003e\n\u003ctd\u003eSLC 500 8 Point Thermocouple Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1746NT8\u003c\/td\u003e\n\u003ctd\u003eAlternate catalog format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Type\u003c\/td\u003e\n\u003ctd\u003eThermocouple \/ mV Analog Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries Platform\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley SLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\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\u003e1746-NT8\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\u003e0.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.5 x 13 x 14.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Type\u003c\/td\u003e\n\u003ctd\u003eThermocouple \/ Millivolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC supply system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Conversion\u003c\/td\u003e\n\u003ctd\u003eAnalog signal to digital data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8538907080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Signal Interface and Data Conversion\u003c\/h3\u003e\n\u003cp\u003eThe 1746-NT8 receives low-level temperature-related input signals from thermocouple sensors and millivolt devices. The module performs analog-to-digital conversion and transfers processed values through the SLC 500 backplane.\u003c\/p\u003e\n\u003cp\u003eThe input architecture supports I\/O density scaling within SLC 500 systems by adding analog measurement capability without replacing the processor unit. Proper channel configuration is required to match the selected sensor type and engineering units.\u003c\/p\u003e\n\u003cp\u003eAllen-Bradley SLC 500 analog modules use defined backplane communication structures for deterministic data exchange between I\/O modules and controller memory tables.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Control Platform Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe SLC 500 platform uses modular chassis architecture with slot-based I\/O expansion. The 1746-NT8 communicates through the chassis backplane and follows controller-defined addressing for input data mapping.\u003c\/p\u003e\n\u003cp\u003eFor installation in industrial control cabinets, signal wiring separation is required between analog measurement circuits and high-voltage switching conductors. Shielded sensor wiring and proper grounding methods help reduce electrical interference during temperature signal acquisition.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1746-NT8 SLC 500 Analog Input Module\u003c\/li\u003e\n\u003cli\u003eModule terminal interface included\u003c\/li\u003e\n\u003cli\u003eProduct identification label included\u003c\/li\u003e\n\u003cli\u003eNo programming software or controller CPU included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003ch4\u003eModule Mounting\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the module into a compatible Allen-Bradley SLC 500 chassis slot.\u003c\/li\u003e\n\u003cli\u003eRemove chassis power before inserting or removing the module.\u003c\/li\u003e\n\u003cli\u003eVerify slot addressing matches the PLC configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSignal Wiring\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse suitable thermocouple extension wiring for the selected sensor type.\u003c\/li\u003e\n\u003cli\u003eKeep analog input wiring separated from motor and power circuit conductors.\u003c\/li\u003e\n\u003cli\u003eConnect sensor polarity according to thermocouple input requirements.\u003c\/li\u003e\n\u003cli\u003eAvoid parallel routing with high-frequency switching cables.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGrounding Requirements\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMaintain cabinet grounding according to industrial installation practices.\u003c\/li\u003e\n\u003cli\u003eConnect cable shields using appropriate grounding methods.\u003c\/li\u003e\n\u003cli\u003eAvoid multiple grounding points that may introduce signal loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWhat type of signals does the 1746-NT8 accept?\u003c\/p\u003e\n\u003cp\u003eThe module accepts thermocouple and millivolt analog input signals for temperature measurement and process monitoring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow many input channels are available?\u003c\/p\u003e\n\u003cp\u003eThe 1746-NT8 provides 8 analog input channels within an SLC 500 chassis configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIs the 1746-NT8 a digital input module?\u003c\/p\u003e\n\u003cp\u003eNo. The module is an analog input device designed for thermocouple and millivolt signal measurement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the module require a separate power supply?\u003c\/p\u003e\n\u003cp\u003eThe module operates through the SLC 500 chassis power and backplane interface.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the module be installed during operation?\u003c\/p\u003e\n\u003cp\u003eModule replacement should follow SLC 500 installation procedures with chassis power removed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the module support standard discrete sensors?\u003c\/p\u003e\n\u003cp\u003eNo. It is designed for analog thermocouple and millivolt signal inputs rather than discrete switching devices.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow does the module communicate with the PLC?\u003c\/p\u003e\n\u003cp\u003eThe module exchanges converted input data with the processor through the SLC 500 backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat installation practice is recommended for sensor wiring?\u003c\/p\u003e\n\u003cp\u003eShielded wiring, proper grounding, and separation from high-noise conductors are recommended for analog signal stability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066407702701,"sku":"1746-NT8","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1746-NT8_1-0-0.jpg?v=1785902189","url":"https:\/\/www.maxwellplc.com\/ga\/products\/1746-nt8-allen-bradley-slc-500-8-point-analog-input-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}