I can not manage to send a signal from my software to my keyboard on Windows Cubase / Protool

The signal from the midi out controller is sent directly to the HOST.

From the HOST this signal is then sent to the plug-in.

Nevertheless, the plug-in does not send the midi data in the same way it receive it.

It does not pass through the DAW, the protocol used occurs only if the output port is not blocked by the DAW.

It is therefore important to not to configure the DAW / HOST to assign output ports to the plug-in.

[Cubase]

Desactivate your output ports by:

==> Devices

==> Device Configuration

==> Configuration MIDI ports

==> Disable Midi output ports