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Allen Bradley 1794-OE4 Flex I/O Analog Output Module
- Product Details
- FAQs
- Related
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- Packing & Delivery
- Product Ratings
Product Introduction
The Allen-Bradley 1794-OE4 FLEX I/O Analog Output Module is a precision analog output module designed for industrial control systems requiring accurate and stable signal transmission. As part of the FLEX I/O series from Rockwell Automation, it provides reliable 4–20 mA current outputs for interfacing with field devices such as control valves, actuators, and signal converters.
This module features 4 single-ended analog output channels, allowing independent control of multiple process variables. It is well suited for distributed I/O systems where analog signals need to be transmitted over long distances with minimal interference.
Designed for flexibility and ease of integration, the 1794-OE4 supports DIN rail mounting and uses screw terminal connections for secure wiring. Its compact structure and robust performance make it a dependable solution for both process and machine control applications.
Product Specifications
| Parameter | Description |
|---|---|
| Product Type | Analog Output Module |
| Series | FLEX I/O |
| Manufacturer | Rockwell Automation |
| Model Number | 1794-OE4 |
| Number of Channels | 4 Outputs |
| Output Type | Analog (Current) |
| Signal Range | 4–20 mA |
| Channel Configuration | Single-Ended |
| Power Supply | 24 VDC |
| Output Resolution | High-resolution analog control |
| Accuracy | Industrial-grade precision output |
| Isolation | Channel-to-backplane isolation |
| Wiring Method | Screw Connection |
| Mounting Method | DIN Rail Mount |
| Housing Type | Open Style |
| Ingress Protection | IP20 |
| Response Time | Fast analog update rate |
| Dimensions | 97 x 46 x 53 mm |
| Weight | 0.11 kg |
Applications
● Used in process control systems for regulating devices such as control valves and variable speed drives
● Ideal for analog signal transmission in industries like oil & gas, chemical processing, and power generation
● Applied in distributed I/O architectures, reducing signal wiring distance and improving system flexibility
● Suitable for automation systems requiring precise current output control
● Commonly integrated into PLC-based systems such as ControlLogix and CompactLogix
● Used in machine automation where analog control of actuators is required
Advantages
● Accurate 4–20 mA output signals ensure reliable control of field devices
● 4 independent channels allow simultaneous control of multiple process variables
● Stable analog performance minimizes signal drift and improves control accuracy
● Screw terminal connections provide secure and reliable wiring
● Compact modular design enables flexible installation in distributed systems
● Seamless integration with FLEX I/O platform reduces engineering complexity
● Industrial-grade reliability ensures long-term stable operation
FAQ
-
What types of devices can be controlled using this module?
It is typically used to control valves, actuators, variable frequency drives, and other devices that accept 4–20 mA input signals. -
What does single-ended output mean in this module?
Single-ended means each output channel shares a common reference, simplifying wiring but requiring proper grounding. -
How accurate is the 4–20 mA signal output?
The module provides industrial-grade accuracy suitable for most process control applications. -
Can this module be used in long-distance signal transmission?
Yes, 4–20 mA signals are highly resistant to noise and are ideal for long-distance transmission. -
How is the module connected to field devices?
It uses screw terminal connections, ensuring stable and secure wiring. -
Is the module suitable for high-precision applications?
Yes, it is designed to provide stable and repeatable analog outputs for precise control. -
What happens if there is a wiring fault?
Incorrect wiring may lead to signal errors; proper installation and grounding are essential. -
Can each channel be configured independently?
Yes, each output channel can be controlled independently through the PLC. -
What type of PLC systems is it compatible with?
It integrates with systems using FLEX I/O adapters, commonly paired with ControlLogix or CompactLogix. -
Does the module require calibration?
Factory calibration is typically sufficient, but periodic verification may be required in high-precision environments.
Related Models
| Model | Channels | Signal Type | Range | Description |
|---|---|---|---|---|
| 1794-OE2 | 2 | Analog Output | 4–20 mA | Low-channel analog output |
| 1794-OE8H | 8 | Analog Output | HART | High-end analog output |
| 1794-IE4XOE2 | 6 | Mixed I/O | Voltage/Current | Combination module |
| 1794-IE8 | 8 | Analog Input | ±10V / 4–20 mA | Analog input module |
| 1794-IF4I | 4 | Analog Input | Current | Isolated input module |
| 1794-OF4I | 4 | Analog Output | Isolated | Isolated output module |
Popular Models
| Model | Type | Channels | Signal | Application |
|---|---|---|---|---|
| 1794-IB16 | Digital Input | 16 | 24 VDC | Input monitoring |
| 1794-OB16 | Digital Output | 16 | 24 VDC | Output control |
| 1794-IE8 | Analog Input | 8 | ±10V / 4–20 mA | Process signals |
| 1794-OE4 | Analog Output | 4 | 4–20 mA | Process control |
| 1794-IF8IH | Analog Input | 8 | HART | Smart devices |
| 1794-IT8 | Temperature Input | 8 | RTD/TC | Temperature control |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
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