Panasonic PT-D7700 Specifications page 9

Transmission from the computer
(Used Only for PT-D10000/DW10000)
Transmission from the computer begins with STX, then the ID, command, and ETX are sent in this order.
STX
Start
0x02
When self-diagnosis result operation in the PT-D10000/DW10000, read commands of C1 and C2 command is necessary.
A command is binary 4 byte command.
ID:
ID ALL=0x00, ID1=0x01, ID2=0x02, ID3=0x03, ID4=0x04, ... ,ID63=0x3f, ID64=0x40
Projector default setting is ID ALL.
Responses from the projector
(Used Only for PT-D10000/DW10000)
STX
Start
0x02 0x00 ~ 0x40
Responses are binary 21 byte command.
Self-diagnosis results are 16 byte (128bit) command.
ID C1
ID Command
0x00 ~ 0x40 0xfe
ID C1
ID Command Command
0xfe
C2 ETX
Command End
0xfe 0x03
C2 P1 P2
bit127
Self-diagnosis information 16 bytes
0xfe
9
P3 P14 P15
(128 bits)
P16 ETX
bit0
End
0x03