The Launchkey powers up into Standalone mode. This mode does not provide specific functionality for interaction with DAWs, the DAW in/out (USB) interface remains unused for this purpose. However, to provide means for capturing events on the Launchkey’s DAW control buttons, they do send MIDI Control Change events on Channel 16 (MIDI status: BFh, 191) on the MIDI in / out (USB) interface and the MIDI DIN port:
The Start and Stop buttons (Start and Shift + Start on Launchkey Mini SKUs) output the MIDI Real Time Start and Stop messages respectively
When creating Custom Modes for the Launchkey, keep these in mind if you are setting up controls to operate on MIDI Channel 16.