Modbus diagnostic calls only works with ModbusSocketFramer

[janiversen]

using the new test_examples.py, it became clear that tcp/udp have problems with diagnostic calls when not using ModbusSocketFramer.

Problems are clearly with ModbusRtuFramer as well as ModbusAsciiFramer.

Versions

• Python:
• OS:
• Pymodbus:
• Modbus Hardware (if used):

Pymodbus Specific

• Server: tcp/rtu/ascii - sync/async
• Client: tcp/rtu/ascii - sync/async

Description

What were you trying, what has happened, what went wrong, and what did you expect?

Code and Logs

 # code and logs here.