Allen-Bradley | 1756-IT16 | ControlLogix Module | 16-Channel Thermocouple Input

Product Description

The Allen-Bradley 1756-IT16 ControlLogix Thermocouple Input Module is a high-performance solution for precise temperature measurement across multiple thermocouple types. Designed for industrial automation systems, it supports 16 input channels with ITS-90 linearization, ensuring accurate readings and reliable integration into ControlLogix platforms.

Technical Specifications

• Manufacturer: Allen-Bradley

• Product Number: 1756-IT16

• Product Type: ControlLogix 16-Channel Thermocouple Input Module

• Supported Thermocouple Types: B, C, D, E, J, K, N, R, S, T, TXK/XK (L)

• Linearization Standard: ITS-90

• Operating Voltage Range: 19.2–30 VDC

• Current Draw @ 5.1 VDC: 200 mA

• Current Draw @ 24 VDC: 80 mA

• Total Backplane Power: 3 W

• Maximum Power Dissipation: 3 W

• Thermal Dissipation: 9.9 BTU/hr

• Open Circuit Detection: Positive full-scale reading within 2 seconds

• Isolation Voltage: 250 V continuous, reinforced insulation type (inputs to backplane); no isolation between individual inputs

• Shipping Weight: 2 kg

Application Scenarios

• Temperature Monitoring: Accurate measurement across a wide range of thermocouple types

• Process Control: Reliable integration into ControlLogix systems for industrial automation

• Safety-Critical Systems: Reinforced insulation ensures dependable isolation between inputs and backplane

FAQ

• Q: Which thermocouple types are supported?  A: The 1756-IT16 supports B, C, D, E, J, K, N, R, S, T, and TXK/XK (L).

• Q: What is the isolation rating?  A: It provides 250 V continuous reinforced insulation between inputs and the backplane, but no isolation between individual inputs.

• Q: How quickly does the module detect open circuits?  A: It registers a positive full-scale reading within 2 seconds.

• Q: How does this module compare to analog input modules?  A: Unlike general analog input modules, the 1756-IT16 is optimized for thermocouple signals with ITS-90 linearization for precise temperature measurement.