{"product_id":"allen-bradley-1794-it9-flex-i-o-thermocouple-input-module","title":"Allen-Bradley 1794-IT9 FLEX I\/O Thermocouple Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-IT9\u003c\/strong\u003e serves as the primary \u003cstrong\u003e1794-IT9\u003c\/strong\u003e Thermocouple Input Module utilized to execute analog signal acquisition across FLEX I\/O platforms.\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\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003e1794-IT9\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard FLEX I\/O module weight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard FLEX I\/O module profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard Allen-Bradley industrial operating range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard FLEX I\/O backplane power draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eThermocouple \/ mV Analog Input Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e16 single-ended analog inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Range\u003c\/td\u003e\n\u003ctd\u003e-200 mV to +200 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e12 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Time\u003c\/td\u003e\n\u003ctd\u003e100 microseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermocouple Types\u003c\/td\u003e\n\u003ctd\u003eJ, K, T, E, R, S, B, N, and W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003eBuilt-in cold junction compensation (CJC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN rail mountable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Cold Junction Compensation\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1794-IT9 provides high-speed 100-microsecond conversion time across 16 single-ended thermocouple channels, feeding digitized millivolt telemetry directly across high-velocity backplane bus architectures. Featuring integrated cold junction compensation (CJC) for high-accuracy temperature scaling across industrial ranges, the module suppresses thermal gradient errors during full-density I\/O switching. Firmware flash compatibility ensures seamless real-time integration into EtherNet\/IP, ControlNet, and Remote I\/O control topologies.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Which thermocouple sensor types are supported by the 1794-IT9 input module?\u003c\/p\u003e\n\u003cp\u003eA: The module supports direct connection to type J, K, T, E, R, S, B, N, and W thermocouples, as well as direct -200 mV to +200 mV analog voltage signals.\u003c\/p\u003e\n\u003cp\u003eQ: How does the 1794-IT9 compensate for temperature variations at the terminal connections?\u003c\/p\u003e\n\u003cp\u003eA: The module utilizes integrated cold junction compensation (CJC) algorithms and sensors to correct for thermal potential shifts at the field wiring terminal interfaces.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfigure the mechanical keying switch on the compatible FLEX I\/O terminal base before snapping the 1794-IT9 module onto the DIN rail.\u003c\/li\u003e\n\u003cli\u003eRoute thermocouple extension wire and low-level millivolt signal leads through dedicated, shielded wire ducts physically separated from high-voltage AC cables.\u003c\/li\u003e\n\u003cli\u003eGround the signal cable shield braid at a single point on the designated enclosure grounding bus bar to eliminate ground loop current interference.\u003c\/li\u003e\n\u003cli\u003eVerify that channel power supply connections match specified polarities prior to initiating system calibration.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52790059401496,"sku":"1794-IT9","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1794-OW8_Cocoai.jpg?v=1790733898","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1794-it9-flex-i-o-thermocouple-input-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}