{"product_id":"allen-bradley-1756-irt8i-controllogix-input-module","title":"Allen-Bradley 1756-IRT8I ControlLogix 8-Point Isolated RTD\/Thermocouple Input Module","description":"\u003cp\u003eThe Allen-Bradley 1756-IRT8I is a high-performance isolated input module designed for the ControlLogix platform. This module provides eight channels capable of measuring signals from RTDs, thermocouples, and millivolt sources, making it a versatile solution for precise temperature monitoring in industrial automation environments.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEight isolated input channels for enhanced noise immunity and signal integrity.\u003c\/li\u003e\n\u003cli\u003eSupports a wide range of thermocouple types including B, C, D, E, J, K, N, R, S, T, and TXK\/XK (L).\u003c\/li\u003e\n\u003cli\u003eData representation in IEEE 32-bit floating point format for high-resolution processing.\u003c\/li\u003e\n\u003cli\u003eFast module scan time of 1 ms to support time-critical control applications.\u003c\/li\u003e\n\u003cli\u003eIntegrated isolation rated at 250 Volts continuous.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eIsolated RTD\/Thermocouple Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e8 Isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5.1V)\u003c\/td\u003e\n\u003ctd\u003e200 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24V)\u003c\/td\u003e\n\u003ctd\u003e150 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Power Dissipation\u003c\/td\u003e\n\u003ctd\u003e4.6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Format\u003c\/td\u003e\n\u003ctd\u003eIEEE 32-bit Floating Point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e250V Continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the ControlLogix chassis is powered down before inserting or removing the 1756-IRT8I module to prevent damage to the backplane or module circuitry.\u003c\/li\u003e\n\u003cli\u003eUse appropriate shielded cabling for all thermocouple and RTD inputs to minimize electromagnetic interference (EMI) in high-noise industrial settings.\u003c\/li\u003e\n\u003cli\u003eMaintain proper grounding practices for the chassis to ensure effective noise shielding.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is fully seated in the chassis slot and that the retaining screws are tightened to secure the connection.\u003c\/li\u003e\n\u003cli\u003eEnsure adequate ventilation in the cabinet to manage the 4.6W maximum heat dissipation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat types of sensors can be connected to the 1756-IRT8I?\u003c\/strong\u003e\u003cbr\u003eThis module supports various RTDs, multiple thermocouple types (B, C, D, E, J, K, N, R, S, T, and L), and millivolt input signals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this module require external power for the inputs?\u003c\/strong\u003e\u003cbr\u003eThe module draws its required power from the ControlLogix backplane. Refer to the current draw specifications (200mA at 5.1V and 150mA at 24V) when calculating total chassis power supply loading.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44783101018200,"sku":"1756-IRT8I","price":86.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/wm_1_93082a54-7086-4b55-a47c-fd32aa01c568.jpg?v=1789191332","url":"https:\/\/www.industriaxplc.com\/ar\/products\/allen-bradley-1756-irt8i-controllogix-input-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}