Delta Electronics RTU-EN01 Operation Manual page 36

Modbus TCP Remote I/O Communication Module RTU-EN01
Press "Search", and you will see all the connected devices on the network
Select the device and click "OK". Information on the device will be loaded in automatically. Press "OK"
to complete the setup.
Once the setup is completed, you will then be able to see the virtual COM just set in "Computer
Management".
DVP-PLC Operation Manual
34