1756-IRT8I high-performance eight channel isolated temperature detection module

1756-IRT8I is a high-performance eight channel isolated temperature detection module in the Allen Bradley ControlLogix series, designed specifically for industrial automation control systems, with high-precision measurement, flexible configuration, and excellent environmental adaptability. This module supports resistance temperature detectors (RTDs), thermocouples, and millivolt (mV) signal inputs, and is compatible with multiple sensor types such as 100 Ω to 1000 Ω platinum resistance detectors (RTDs), B/C/D/E/J/K/N/R/S/T type thermocouples, and -100mV to 100mV mV signals, which can meet the temperature monitoring needs of complex industrial scenarios. Its core advantages include:

High precision data collection
Using a 24 bit resolution analog-to-digital converter combined with Sigma Delta conversion technology, high-precision capture of small signal changes is achieved. Convert data to IEEE 32-bit floating-point format for storage, ensuring accurate real-time temperature values for HMI, SCADA, and DCS systems, supporting process control and quality analysis.

Flexible configuration and scalability
The module provides 8 independent isolated channels, each of which can be configured as RTD, thermocouple, or millivolt input mode through Studio 5000 Logix Designer software to accommodate diverse sensor layouts. Supports hot swapping function, allowing for module replacement during system operation and reducing downtime. In addition, the module is compatible with multiple communication protocols (such as EtherNet/IP, ControlNet) and can be seamlessly integrated into distributed control architectures.

Industrial grade environmental adaptability
The working temperature range covers 0 ° C to 60 ° C, and the storage temperature is extended to -40 ° C to 85 ° C, suitable for extreme industrial environments. The module has passed CSA, UL, and CE certifications and has a 250V isolation voltage, effectively preventing electrical interference and ensuring signal integrity. Compact design (size approximately 120 × 100 × 40mm) makes it easy to install in cabinets with limited space.

Intelligent diagnosis and reliability
Built in open circuit detection, sensor offset compensation, and cold end compensation functions, automatically calibrate thermocouple lead resistance, and improve measurement accuracy. The module supports real-time alarm, and when the measured value exceeds the preset range, it can trigger the controller response to ensure system safety. In addition, the module undergoes vibration testing (2g acceleration, 5-500Hz) to ensure stable operation in mechanical stress environments.

Typical application scenarios
Widely used in industries such as chemical, power, metallurgy, and food processing, for example:

Process control: Monitor the temperature of the reactor and pipeline to achieve precise PID control.
Energy management: Track the operating temperature of generators and transformers to optimize equipment efficiency.
Quality monitoring: Testing the temperature uniformity of baking and sterilization processes in food processing.
The 1756-IRT8I, with its high precision, flexibility, and reliability, has become a core component for temperature detection in the field of industrial automation, helping enterprises improve production efficiency and product quality.

Brand and Model: Rockwell Automation (Allen Bradley) ControlLogix Series 1756-IRT8I.
Product type: Eight channel isolated temperature detection module, supporting resistance temperature detector (RTD), thermocouple, and millivolt (mV) signal input.
Number of channels: 8 independent isolated channels, each channel can be configured as RTD, thermocouple, or millivolt input mode.
Input characteristics

Supported sensor types:
RTD: Compatible with platinum resistors (RTDs) ranging from 100 Ω to 1000 Ω, such as PT100 and PT1000.
Thermocouple: Supports B/C/D/E/J/K/N/R/S/T type thermocouples.
Millivolt input: Supports a signal range of -100mV to 100mV.
Input impedance: ≥ 10M Ω in RTD mode and ≥ 100M Ω in thermocouple mode to ensure the accuracy of signal acquisition.
Cold end compensation: Built in cold end compensation function, automatically calibrates thermocouple lead resistance, and improves measurement accuracy.
Accuracy and Resolution

Resolution: 24 bit analog-to-digital converter (ADC), combined with Sigma Delta conversion technology, achieves high-precision signal capture.
Measurement accuracy:
RTD mode: ± 0.1 ° C (typical value, depending on sensor type and configuration).
Thermocouple mode: ± 0.5 ° C (typical value, affected by ambient temperature).
Data format: Convert data to IEEE 32-bit floating-point format for storage, ensuring accurate real-time temperature values for HMI, SCADA, and DCS systems.
Electrical specifications

Power supply voltage: Powered through the ControlLogix rack backplane without the need for an external power source.
Power consumption: Maximum 5.5W (typical value), ensuring system energy efficiency.
Isolation voltage: The isolation voltage between channels and between channels and racks reaches 250V AC, effectively preventing electrical interference.
Environmental adaptability

Working temperature: 0 ° C to 60 ° C (32 ° F to 140 ° F), suitable for standard industrial environments.
Storage temperature: -40 ° C to 85 ° C (-40 ° F to 185 ° F), ensuring that the module can still function properly even after being stored under extreme conditions.
Relative humidity: 5% to 95% (no condensation), to prevent module failures caused by humid environments.
Vibration and impact: Through 2g acceleration and 5-500Hz vibration testing, ensure stable operation in mechanical stress environments.
Protection level: IP20, suitable for standard industrial sites.
Function and compatibility

Communication protocol: Supports industrial protocols such as EtherNet/IP and ControlNet, seamlessly integrated with Logix5000 controllers.
Programming software: Configure, monitor, and diagnose online through Studio 5000 Logix Designer, supporting real-time control logic adjustment.
Hot plug support: Supports live plug and play (RIPP) for easy online maintenance and module replacement.
Diagnostic function: Built in open circuit detection, sensor offset compensation, and real-time alarm function. When the measured value exceeds the preset range, the controller response can be triggered to ensure system safety.
Protection and authentication

Certification standards: Through international certifications such as CSA, UL, CE, etc., ensure global compliance and safety.
Safety design: Complies with the IEC 61010-1 safety standard, with overvoltage and overcurrent protection functions to prevent equipment damage.
application area 

Typical scenarios: Widely used in industries such as chemical, power, metallurgy, and food processing, for example:
Process control: Monitor the temperature of the reactor and pipeline to achieve precise PID control.
Energy management: Track the operating temperature of generators and transformers to optimize equipment efficiency.
Quality monitoring: Testing the temperature uniformity of baking and sterilization processes in food processing.
physical property

Size: Approximately 120 x 100 x 40mm (4.72 x 3.94 x 1.57 inches), compact design for easy integration into space constrained cabinets.
Weight: Approximately 0.3kg (0.66 pounds), lightweight design reduces installation difficulty.
Installation method: Standard rail installation, compatible with ControlLogix series racks.
The 1756-IRT8I module, with its high precision, flexibility, strong environmental adaptability, and reliable diagnostic capabilities, has become a core component for temperature detection in the field of industrial automation, helping enterprises improve production efficiency and product quality.

Our Services:

1,All our products are new and orginal, and of good quality

2,Our prices are very competitive.

3, We have a large quantity in stock, so we could help the customers to get the components which are dificult to get.

4,All inquiries will be valued and will reply in 24.

Packing & Delivery:

1,100% brand New and Original Factory Seal!

2,Warranty:1 year

3,Package: Original packing with cartons.

4,Delivery time: Shipped in 3-7 days after payment

5,All the goods will be tested before shipment