Hi,
The offsets are the below which can entered inside sysvar.txt or at the logic section of pmsysxxx.lgc
55F0 0 CPFD
55F0 1 CND
55F0 2 UECAM
55F0 3 LECAM
55F0 4 FND
55F0 5 FPFD
The manual says
(Dimmer Implemented for Airbus and Boeing
Glass Cockpit display brightness, Bytes
0 - Captain PFD
1 - <?XML:NAMESPACE PREFIX = ST1 /><ST1:CITY w:st="on">Captain</ST1:CITY> <ST1:STATE w:st="on">ND</ST1:STATE>
2 - Upper ECAM
3 - <ST1:PLACE w:st="on">Lower ECAM</ST1:PLACE>
4 - F/O ND
5 - F/O PFD<?XML:NAMESPACE PREFIX = U5 /><U5:P></U5:P><?XML:NAMESPACE PREFIX = U4 /><U4:P></U4:P><?XML:NAMESPACE PREFIX = U1 /><U1:P></U1:P><?XML:NAMESPACE PREFIX = O /><O:P></O:P>
0 - INOP, 1 Dark -100 Bright
Important: Bitmap Frames must be disabled)
So, you must build a logic that must be dark or bright when you want. The logic must me something like the below and must be inserted at the logic section of pmsysxxx.lgc
if (genbus1 = 0) or (genbus2 = 0)
then
CPFD = 1
CND = 1
UECAM = 1
LECAM = 1
FND = 1
FPFD = 1
else
CPFD = 100
CND = 100
UECAM = 100
LECAM = 100
FND = 100
FPFD = 100
endif
I did not test it and I do not know if it works, but it seems it will.