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Description
The Allen-Bradley 1756-IT6I2 is a specialized 6-point isolated thermocouple input module designed for the ControlLogix platform. This enhanced analog input module provides high-resolution monitoring for thermocouple sensors, supporting precise temperature data acquisition in demanding industrial environments. Please note that this module was officially discontinued by the manufacturer as of March 31, 2017.
Features
- 6 isolated analog input channels
- Enhanced thermocouple input capabilities
- 16-bit resolution for high-precision measurement
- Input range support: -12 to 78 mV and -12 to 30 mV
- 1.4 uV/bit sensitivity
- Designed for integration with the ControlLogix backplane
Technical Specifications
| Manufacturer | Allen-Bradley |
| Model | 1756-IT6I2 |
| Input Type | Isolated Thermocouple |
| Number of Points | 6 |
| Resolution | 16-bit |
| Backplane Current (5V) | 200 mA |
| Backplane Current (24V) | 150 mA |
| Power Dissipation (Max) | 4.6 Watts |
| Compatible Terminal Blocks | 1756-TBNH, 1756-TBSH |
Installation Guidelines
- Ensure the ControlLogix chassis is powered down before inserting or removing the module to prevent electrical damage or bus errors.
- Use compatible 1756-TBNH or 1756-TBSH removable terminal blocks for secure wiring connections.
- Maintain proper grounding practices for thermocouple wiring to minimize electromagnetic interference (EMI) and signal noise.
- Verify that the module is fully seated in the chassis slot and that the locking tab is engaged.
- Follow standard ESD (Electrostatic Discharge) mitigation procedures when handling the module to protect internal components.
FAQ
Is the 1756-IT6I2 still in production? No, this module was discontinued by Allen-Bradley on March 31, 2017. It is typically sourced through surplus or aftermarket channels.
What terminal blocks are compatible with this module? The 1756-IT6I2 is designed for use with 1756-TBNH or 1756-TBSH removable terminal blocks.
What is the resolution of this module? The module features a 16-bit resolution with a sensitivity of 1.4 uV/bit.
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