The 1794-OE4 module is a digital/analog output module from Allen-Bradley's Flex I/O series. It is designed to provide digital and analog output signals for a programmable logic controller (PLC) system.

Here are some key features and specifications of the 1794-OE4 module:

Output Channels: The module offers four output channels, which can be configured as either digital or analog outputs. Each channel provides one output point.

Digital Output: The digital output channels can be used to control devices that require on/off signals, such as solenoid valves, motor starters, and relays. The module supports sourcing or sinking configuration for the digital outputs.

Analog Output: The module also has analog output channels, which can provide continuous control signals with a specific voltage or current range. The analog outputs can be used to interface with devices like variable frequency drives (VFDs), proportional control valves, and analog meters.

Output Type: The 1794-OE4 module supports voltage or current output types. For analog outputs, you can configure the module to provide either voltage within a specified range or current within a specified range, depending on the requirements of your application.

Diagnostic LEDs: Each output channel has an associated status LED, which provides visual indication of the output status, aiding in troubleshooting and diagnostics.

Configuration: The module can be configured using Rockwell Automation software tools like RSLogix 5000 or Studio 5000. These software tools provide a graphical interface to assign output types, configure voltage/current ranges, and set module parameters.