Traceback (most recent call last): File "/var/www/html/plugins/mymodbus/ressources/mymodbusd/mymodbus.py", line 441, in connect await self.client.connect() File "/var ...

For 300 kbps that translates to aprox 766 ms, and that does not take into account the inter-fram delay, which, per the spec, is recommended to be 1.75 ms for baud rates greater than 19200 bps - and it ...