eCockpit connection Modbass

I came across this problem. Connected modbus RTU to COM1. The connection drops out periodically. But then it recovers. What could be the problem?
2024-05-06_18-43-18



What settings can cause such problems?

Is it possible to view the bytes coming to the bus? How can you check which bytes are leaving?

hello you need to have a serial sniffer.
i’ve repurposed an old rPI2b for it.

another way would be to use a USB to RS adapter and a Windows / Linux PC …

Through the MOXA adapter the SLAVE device works perfectly. The problem is only when Wago is the Master and polls the Slave.
I wanted to see what bytes come in the request, but I understand that such a function is not provided?