Well done, it works perfectly.
Thanks for your tips.
It looks like you made a step forward. "On inspector I see nmea data transit but on opencpn nmea debug window I have no data nmea."
So you have on both sides nmea. Please post some wind NMEA sentences from Inspector (MWV, VWR) should look like:
$IIMWV,313,T,08.16,N,A*2B