| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Flex I/O High-Density Analog Module |
| Product Line | Flex I/O 1794 |
| Part Number | 1794-IE4XOE2 |
| Weight | 0.31 lbs (0.14 kg) |
| Resolution | 12 bit plus sign |
| Conversion Type | Pulse Width Modulation (PWM) |
| Product Description | Flex IO combination analog I/O module |
| No. of inputs | Four (4) single-ended, non-isolated inputs |
| Current input signals | 0-20 mA / 4-20 mA |
| Input resolution | 12 bits unipolar / 11 bits plus sign bipolar |
| No. of outputs | Two (2) Single Ended, non-isolated |
| Output type | 0 to 20 mA; 4 to 20 mA; +/- 10VDC; |
| Terminal base | 1794-TB2, -TB3, -TB3S, -TB3T, -TB3TS |
| Mounting | DIN Rail |
| Wire Size | Determined by installed terminal base |
| Storage Temperature | –40…85 °C (–40…185 °F) |
| Vibration | 5g @ 10 to 500 Hz |
| Operating Shock | 30 g |
| Inputs | 4 Single-ended |
| Input Current Terminal | 4-20mA |
| Input Voltage Terminal | +/- 10V |
| FlexBus Current | 20mA |
| Outputs | 2 Single-ended |
| Output Current Terminal | 4-20mA |
| Output Voltage Terminal | +/- 10V |
| Thermal Dissipation | 10.2 BTU/hr. @ 31.2V DC max. |
Overview
The Allen-Bradley 1794-IE4XOE2 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 digital controller (PLC) and analog field devices. With 4 independent input channels and 2 independent output channels, it offers high channel density, saving valuable panel space while delivering precise control signals. Whether you need to regulate flow, temperature, or pressure, the 1794-IE4XOE2 provides the reliability and accuracy required for modern industrial automation.
Key Features & Benefits
- High-Density Mixed I/O: Features 4 analog input channels and 2 analog output channels in a single module footprint, significantly reducing the number of modules required for complex process 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/outputs, offering unmatched versatility for mixed-signal applications.
- 12-Bit Resolution: Provides high-precision 12-bit digital-to-analog conversion, ensuring smooth and accurate control of sensitive equipment like proportional valves and servo drives.
- Channel Isolation: The module features channel-to-channel isolation, preventing electrical noise or faults in one channel from affecting adjacent channels, thereby increasing system stability.
- Diagnostic LEDs: Integrated status LEDs for each channel (Input/Output Enable) and module status allow for rapid troubleshooting and verification of signal 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-IE4XOE2 is extensively used in:
- Process Control: Regulating control valves and actuators via 4-20mA signals.
- Motor Control: Sending speed reference signals (0-10V) to Variable Frequency Drives (VFDs).
- Data Recording: Providing analog inputs to chart recorders and data loggers.
- HVAC Systems: Controlling damper positions and heating elements.
- Water Treatment: Monitoring and controlling chemical dosing pumps.
Important Installation Note:
The 1794-IE4XOE2 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-IE4XOE2 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-IE4XOE2.
| Documents | Type | Issued Date | Link(PDF) |
|---|---|---|---|
| User Manual (FLEX I/O Analog Module) | User Manual | 1996-05-01 | Download |
| Technical Data (FLEX I/O Analog Specifications) | Technical Data | 2013-09-30 | Download |
| Installation Instructions (Analog I/O Modules) | Install Instructions | 2024-03-08 | Download |
| Certification (CE Declaration of Conformity) | Certificate | 2022-04-18 | Download |
| Certification (KC Certificate) | Certificate | 2020-10-16 | Download |
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