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- Allen Bradley
- 1756-IT6I2
- ControlLogix ControlNet Communication Module
- USA
- 14.5 × 11.2 × 5.6 cm
- 0.28kg
- Xiamen, China
- New & In Stock
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All our products are priced very favorably because we have our own warehouse and supply.
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1756-IT6I2 Detailed Product Overview
Product Introduction
The 1756-IT6I2 is a high-performance thermocouple and millivolt input module designed for industrial temperature measurement and process monitoring systems. It belongs to the ControlLogix automation platform and is used to acquire precise temperature signals from multiple thermocouple sensors in complex industrial environments.
This module provides 6 individually isolated thermocouple input channels and is optimized for high-accuracy temperature acquisition. It supports a wide range of thermocouple types and delivers stable measurement performance even under harsh industrial conditions.
The 1756-IT6I2 is widely used in industries such as oil and gas processing, petrochemical refining, power generation, metallurgy, chemical production, pharmaceutical manufacturing, and large-scale automation systems.
It is designed for continuous operation in environments with electrical noise, vibration, and temperature fluctuations while maintaining accurate and reliable signal processing.
Brand Information
| Item | Details |
|---|---|
| Brand | Allen Bradley |
| Product Category | Thermocouple / Millivolt Input Module |
| Product Type | Enhanced Isolated Temperature Input Module |
| Platform | ControlLogix |
| Installation Method | Chassis Mounted |
| Main Function | Thermocouple Signal Acquisition |
| Application Field | Industrial Process Automation |
| Signal Type | Thermocouple / mV Measurement |
Product Series Overview
ControlLogix Series
The 1756-IT6I2 belongs to the ControlLogix modular automation system, designed for high-performance industrial control applications requiring flexibility, scalability, and reliability.
The ControlLogix platform is widely used in process industries and discrete manufacturing environments where integrated control and high-speed data acquisition are required.
Key capabilities include:
- Process temperature control
- Discrete and analog I/O integration
- High-speed signal acquisition
- Motion and safety system integration
- Distributed control systems
- Industrial communication networking
- Real-time diagnostics and monitoring
- Modular system expansion
This platform is widely deployed in continuous industrial production environments requiring stable and long-term operation.
Product Features
1. 6-Channel Isolated Thermocouple Inputs
The module provides 6 independent and isolated thermocouple input channels for stable temperature measurement.
2. Multi-Thermocouple Compatibility
Supports a wide range of thermocouple types including:
- Type B, C, D
- Type E, J, K, N
- Type R, S, T
3. High-Resolution Measurement
Provides 16-bit resolution for precise temperature conversion from millivolt signals.
4. Cold Junction Compensation
Integrated CJC sensors ensure accurate thermocouple temperature readings.
5. Fast Signal Processing
Supports rapid scanning and conversion of multiple temperature channels for real-time monitoring.
6. Built-in Diagnostics
Includes advanced diagnostic functions such as:
- Open thermocouple detection
- Over-range and under-range alarms
- Channel fault detection
- Signal integrity monitoring
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-IT6I2 |
| Product Type | Thermocouple / mV Input Module |
| Series | ControlLogix |
| Input Channels | 6 Isolated Thermocouple Inputs |
| Supported Inputs | Thermocouple / Millivolt |
| Thermocouple Types | B, C, D, E, J, K, N, R, S, T |
| Input Range | -12 mV to +78 mV / -12 mV to +30 mV |
| Resolution | 16-bit |
| Data Format | Integer / IEEE 32-bit Floating Point |
| Cold Junction Compensation | Dual CJC sensors |
| Scan Time | 10–50 ms depending on mode |
| Backplane Current (5V) | 200 mA |
| Backplane Current (24V) | 120 mA |
| Power Dissipation | ~4.6 W |
| Isolation Voltage | 250 V continuous (channel-to-backplane) |
| Overvoltage Protection | Up to 120 VAC/VDC |
| Channel Bandwidth | 15 Hz |
| Settling Time | <80 ms to 5% full scale |
| Noise Rejection | 60 dB normal mode / 160 dB common mode |
| Wiring Method | Removable Terminal Block (1756-TBNH) |
| Diagnostics | Fault detection, open wire detection |
| Mounting Type | Chassis mount |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Calibration Accuracy | ±0.1% of range @ 25°C |
| Dimensions | 14.5 × 11.2 × 5.6 cm |
| Weight kg（ ） | 0.28 kg |
Product Applications
Industrial Temperature Monitoring
Used for real-time monitoring of temperature across multiple process points in industrial systems.
Oil and Gas Industry
Applied in refinery operations, pipeline monitoring, and drilling temperature control systems.
Power Generation Systems
Used in turbine monitoring, boiler systems, and heat exchange equipment.
Chemical Processing Industry
Supports precise temperature control in reactors and chemical production lines.
Metallurgy Industry
Used in furnace temperature monitoring and high-temperature industrial processes.
Pharmaceutical and Food Industry
Ensures accurate temperature control in sterilization and production processes.
Product Advantages
High Measurement Accuracy
Provides precise thermocouple signal conversion with stable long-term performance.
Strong Electrical Isolation
Each channel is isolated to minimize interference and improve reliability.
Multi-Sensor Compatibility
Supports a wide range of thermocouple types for flexible industrial use.
Advanced Noise Rejection
High immunity to industrial electromagnetic interference.
Integrated Diagnostics
Early fault detection reduces downtime and improves maintenance efficiency.
Stable Industrial Operation
Designed for continuous use in harsh environments.
Recommended Related Models (Same Series)
| Model | Product Type | Key Feature | Channels | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-IT16 | Thermocouple Input Module | High-density 16-channel TC input | 16 | 30.0 × 3.8 × 11.1 cm | 0.34 kg |
| 1756-IRT8I/A | Multi-signal Input Module | RTD + TC + mV support | 8 | 14.5 × 11.2 × 5.6 cm | 0.45 kg |
| 1756-IR6I | RTD Input Module | Temperature resistance input | 6 | 14.5 × 11.2 × 5.6 cm | 0.28 kg |
| 1756-IT6I | Thermocouple Input Module | Standard TC input version | 6 | 14.5 × 11.2 × 5.6 cm | 0.30 kg |
| 1756-IF8 | Analog Input Module | General analog signals | 8 | 14.5 × 11.2 × 5.6 cm | 0.42 kg |
Popular Models from Same Brand
| Model | Product Type | Function | Communication | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-L81E | PLC Controller | System processor | EtherNet/IP | 15.2 × 14.0 × 5.5 cm | 0.62 kg |
| 1756-EN2TR | Ethernet Module | Industrial networking | EtherNet/IP | 14.5 × 11.2 × 5.6 cm | 0.50 kg |
| 1734-AENTR | Remote I/O Adapter | Distributed I/O system | EtherNet/IP | 13.2 × 7.5 × 5.0 cm | 0.30 kg |
| 2711P-T10C4D8 | HMI Panel | Operator interface | Ethernet/USB | 27.1 × 21.1 × 6.0 cm | 1.80 kg |
| 25B-D017N104 | VFD Drive | Motor speed control | EtherNet/IP | 35.0 × 21.6 × 18.0 cm | 4.90 kg |
Installation Notes
Install the module in a grounded ControlLogix chassis with proper ventilation.
Use shielded thermocouple wiring to reduce noise and improve measurement accuracy.
Ensure terminal blocks are securely connected for stable long-term operation.
Summary
The 1756-IT6I2 is a high-precision isolated thermocouple input module designed for industrial automation systems requiring accurate and stable temperature measurement.
Its 6-channel isolated architecture, strong noise immunity, flexible thermocouple compatibility, and advanced diagnostics make it suitable for demanding process industries.
It is widely used in energy, chemical, manufacturing, and heavy industrial environments where reliable temperature monitoring is essential for safe and efficient operation.