This video demonstrates how to control IO Modules over MODBUS by using a Python program on Raspberry PI connected on the Ethernet cable.
The same Python program works on Windows or Mac on the same way too.
Feldbus Coupler Ethernet
4-channel thermocouple
Supply module
4 channel digital input
4 channel digital output
End terminal
connection over USB to Ethernet adapter
See the instruction on my YouTube Channel. -->
By the way, to create the user interface I used the Python PAGE GUI Generator.