I have an Ewon Cosy 131 4G unit, serial number 2045-0196-22, Firmware 14.3s0
I am based in Scotland, and the Ewon is installed in China. Everything is connected and the 4G signal strength is shown as Maximum.
The Ewon is linked to a network containing some Nidec inverter drives, and two Rockwell Compactlogix PLCs. I can ping all the items with the round trip time approximately 400ms.
Communications with the PLCs is very slow with a screen update taking about 5 seconds if it works, but it often drops the connection (within the Rockwell software).
Note the Ewon router is type EC6133G (the EU version) as this was easily available in China.
Are there any checks I can do to see why the the communication with the PLC is so unstable?