Hi @Sanderkoers,
Did you achieve this in the end? Same problem here.....
Solved it for T6 type sentence (Brel Dooya , ESMA, DC-106 RMF etc).
Sander - you were on the right track - you need to get the unit number and address from those codes as follows:
My open code was -
9 25 6 21 100 67 205 177 1 126 (09 19 06 15 [64 43 CD] B1 01 7E)
the address here is Hex. 64 43 CD and Unit code is B1 (177 decimal). I entered those numbers into the BREL device type and everything works great as a BREL device.
In your case
you have 9 3 1 2 39 0 0 0 0 0 (09 03 01 02 27 00 00 00 00 00)
The address here would be 00 00 00 and the unicode is 00.
All those zeros look suspiciously like you aren't paired with the shade so if it won't talk - you may need to look at
https://forums.indigodomo.com/viewtopic.php?f=28&t=21102&p=164706&hilit=Brel#p164706which goes through some pairing etc.
The hardware and plugin look REALLY solid when you get that addressing sorted out.....