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Product Introduction
The Allen-Bradley 1794-IR8 FLEX I/O RTD Input Module is a precision analog input module specifically designed for temperature measurement using RTD (Resistance Temperature Detector) sensors. As part of the FLEX I/O platform from Rockwell Automation, this module delivers accurate and stable temperature data acquisition in distributed industrial control systems.
With 8 input channels and support for RTD signals within a nominal range of 1–433 ohms, the 1794-IR8 enables precise monitoring of temperature variations in critical processes. Its 16-bit resolution ensures high accuracy, making it suitable for applications where fine measurement detail is essential.
The module is designed for DIN rail mounting and integrates seamlessly into FLEX I/O systems, providing reliable performance and efficient installation in industrial environments.
Product Specifications
| Parameter | Description |
|---|---|
| Model | 1794-IR8 |
| Brand | Allen-Bradley |
| Series | FLEX I/O |
| Module Type | RTD Input Module |
| Signal Type | Analog |
| Number of Channels | 8 Channels |
| Input Type | RTD (Resistance Temperature Detector) |
| Input Range | 1–433 Ohm Nominal |
| Resolution | 16-bit |
| Measurement Type | Temperature via resistance |
| Mounting Type | DIN Rail Mount |
| Communication | FLEX I/O Backplane Communication |
| Construction | Open Style |
| Protection Rating | IP20 |
| Performance | High-accuracy temperature acquisition |
| Dimensions | 94 × 45.7 × 53.3 mm |
| Weight | 0.144 kg |
Applications
• Process Temperature Monitoring – Used for accurate temperature measurement in industrial processes using RTD sensors.
• Chemical and Oil & Gas Industries – Enables precise thermal monitoring in critical process environments.
• Manufacturing Systems – Supports temperature control and monitoring in production equipment.
• Energy and Power Systems – Provides reliable temperature feedback for equipment and system protection.
• Distributed I/O Systems – Ideal for remote temperature data acquisition, improving system flexibility.
Advantages
• High Measurement Accuracy – 16-bit resolution ensures precise temperature readings.
• RTD-Specific Design – Optimized for resistance-based temperature sensing, improving reliability.
• Multi-Channel Capability – Supports 8 RTD inputs, reducing the need for multiple modules.
• Stable Signal Processing – Ensures consistent and noise-resistant measurement performance.
• Compact Installation – DIN rail mounting allows efficient integration into control panels.
• Seamless Integration – Fully compatible with FLEX I/O systems for distributed automation architectures.
