{"product_id":"allen-bradley-1756-it6i-controllogix-thermocouple-input-module","title":"Allen-Bradley 1756-IT6I ControlLogix Thermocouple Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-IT6I\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-IT6I\u003c\/strong\u003e Thermocouple\/Isolated Input Module, operates as a dedicated hardware component for high-accuracy temperature sensing within ControlLogix backplane platforms. The module digitizes low-millivolt temperature signals across 6 channels, interfacing directly with field-mounted thermocouples or millivolt sensors. Each input channel features individual galvanic channel-to-channel isolation, preventing common-mode voltage interference and thermal noise propagation between ungrounded or grounded thermal junction probes.\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\u003e1756-IT6I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\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\u003e0.99 lbs (0.45 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eControlLogix Single-Slot Standard Module\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\u003e4.3 W (Backplane: 250 mA at 5.1 VDC, 125 mA at 24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e6 points individually isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Types\u003c\/td\u003e\n\u003ctd\u003eThermocouple \/ Millivolt Signals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold Junction Compensation\u003c\/td\u003e\n\u003ctd\u003eSupported via Removable Terminal Block sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Configuration\u003c\/td\u003e\n\u003ctd\u003eChassis Mount (1756 ControlLogix I\/O Chassis)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemovable Terminal Block\u003c\/td\u003e\n\u003ctd\u003e1756-TBSA or 1756-TBSH (20-Pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eControlLogix System Architecture \u0026amp; Backplane Protocol Features\u003c\/h3\u003e\n\u003cp\u003eThe module communicates over the local ControlLogix backplane bus utilizing high-velocity CIP (Common Industrial Protocol) framing. Backplane bus communication velocity guarantees low deterministic latency during real-time thermal data processing. High-density I\/O routing protocols ensure continuous cyclic data transmission to the controller, matching configured Requested Packet Interval (RPI) values down to sub-millisecond execution cycles. Firmware flash compatibility enables online parameter configuration and diagnostic updates via Studio 5000 Logix Designer software without interrupting backplane communication.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1756-IT6I module be removed or inserted under power (RIUP)?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module supports Removal and Insertion Under Power (RIUP) within a ControlLogix chassis. However, cold junction compensation (CJC) thermistor connections located on the Removable Terminal Block (RTB) must remain firmly attached during operation to prevent thermal reference measurement errors.\u003c\/p\u003e\n\u003cp\u003eQ: Does the 1756-IT6I provide onboard cold junction compensation (CJC)?\u003c\/p\u003e\n\u003cp\u003eA: Cold junction compensation is performed by utilizing CJC thermistors embedded directly within the 1756-TBSA or 1756-TBSH Removable Terminal Block assemblies, allowing accurate ambient temperature offset adjustments for connected thermocouple leads.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure backplane chassis grounding complies with IEEE 1100 standards by connecting the chassis grounding stud directly to the main cabinet star ground with low-impedance copper wire.\u003c\/li\u003e\n\u003cli\u003eUse dedicated thermocouple extension wire matched precisely to the specific thermocouple type (e.g., Type J, K, T, E, R, S, B, N) to prevent cold junction interface errors.\u003c\/li\u003e\n\u003cli\u003eRoute low-level thermocouple signal lines in separate wiring raceways isolated from high-voltage AC cables and variable frequency drive output power leads.\u003c\/li\u003e\n\u003cli\u003eGround the shield wire of shielded thermocouple cabling at a single end only (typically at the cabinet panel) to avoid creating ground loops across isolated channels.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":48786284380350,"sku":"1756-IT6I","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/1756-IT6I_221328bd-2a56-4094-87c6-a0eb03561206.png?v=1787710388","url":"https:\/\/www.autooiltech.com\/ar\/products\/allen-bradley-1756-it6i-controllogix-thermocouple-input-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}