| Manufacturer | Allen Bradley |
|---|---|
| Product Type | High-Density Analog Module |
| Product Line | Flex I/O 1794 |
| Part Number | 1794-IE8 |
| UPC | 612598137817 |
| Weight | 0.25 lbs (0.11 kg) |
| Number of Inputs | 8 Single-Ended, Non-Isolated Inputs |
| Resolution | 12 Bits – Unipolar; 11 Bits Plus Sign – Bipolar |
| Conversion Rate | 256 µs All Channels |
| Supply Voltage | 24 Volts DC Nominal |
| Voltage Range | 19.2 to 31.2 Volts DC |
| Supply Current | 60 Milliamps at 24 Volts DC |
| Indicators | 1 Green Power Indicator |
| Maximum Power Dissipation | 3 Watts at 31.2 Volts DC |
| Maximum Thermal Dissipation | 10.2 BTU/hr at 31.2 Volts DC |
| Isolation Voltage | 850 Volts DC; No Isolation Between Individual Channels |
| Operating Temperature Range | 0 to 55 Degrees Celsius |
Overview
The Allen-Bradley 1794-IE8 is a critical component for distributed control systems, belonging to the robust FLEX I/O family by Rockwell Automation. This module acts as the bridge between your analog field devices and digital controller (PLC). With 8 independent input channels, it offers a balanced channel density, saving valuable panel space while delivering precise monitoring capabilities. Whether you need to monitor pressure, temperature, or flow, the 1794-IE8 provides the reliability and accuracy required for modern industrial automation.
Key Features & Benefits
- Balanced Channel Density: Features 8 independent analog input channels in a single module footprint, providing an optimal balance between space savings and wiring complexity for mid-sized applications.
- Flexible Signal Configuration: Each channel can be individually configured via side-mounted DIP switches for Current (0-20mA, 4-20mA) or Voltage (0-10V, ±10V) inputs, offering unmatched versatility for mixed-signal applications.
- 12-Bit Resolution: Provides high-precision 12-bit analog-to-digital conversion, ensuring accurate reading of sensor data for critical process control loops.
- Channel-to-Common Isolation: The module features channel-to-common isolation, which helps to reduce the effects of electrical noise and ground loops, thereby increasing system stability and signal integrity.
- Diagnostic LEDs: Integrated status LEDs for each channel (Input Active) and module status allow for rapid troubleshooting and verification of input states without external test equipment.
- Rugged Design: Built to withstand harsh industrial environments with a wide operating temperature range and high immunity to electrical noise.
Applications
The Allen-Bradley 1794-IE8 is extensively used in:
- Process Monitoring: Reading pressure, temperature, and flow transmitters via 4-20mA signals.
- Machine Control: Monitoring sensor feedback for position and speed.
- Data Acquisition: Collecting analog data for SCADA systems and historians.
- HVAC Systems: Monitoring duct pressure, temperature, and humidity sensors.
- Water Treatment: Monitoring tank levels, pH, and chemical concentrations.
Important Installation Note:
The 1794-IE8 module requires a compatible Terminal Base Unit (such as the 1794-TB3 or 1794-TB3S) for wiring and power connection. The module plugs directly onto the terminal base. Ensure the terminal base is correctly wired for the specific voltage or current mode selected on the module’s DIP switches.
Why Choose This Module?
Our 1794-IE8 units are sourced from authorized distributors, guaranteeing genuine Allen-Bradley / Rockwell Automation quality. As a mature product, it is widely used in existing plants for replacements and upgrades. We provide fast shipping, technical support, and competitive pricing to keep your production lines running smoothly.
Upgrade your FLEX I/O system today with the Allen-Bradley 1794-IE8.
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