Version 2.0b1 response value

[double1968]

I have upgraded to version 2.0
everything works and the system seems more stable.
I don't understand why I send the commands to my HYD4000 sometimes I receive in the topic "Sofar2mqtt/response/" the value 512 as an answer while the notes report this:

The result code will be 0 for success, 1 means "Invalid Work Mode" (which possibly means
the inverter isn't in passive mode,) and 3 means "Inverter busy." 2 and 4 are data errors
which shouldn't happen unless there's a cable issue or some such.

Many Thanks