4 Command control
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PJ04030102B
(Example 2) Brightness confirmation
Purpose: To confirm the brightness. (Current brightness: -3)
(1) Transmit the data from the external controller to the projector as follows.
1: External controller →
0x3F
0x89
0x01
0x50
0x4D
0x42
0x52
0x0A
'?'(Reference)
PJ
Individual : 1
‘P’
‘M’
‘B’
‘R’
End
(2) If the projector receives the data (1) above and the command receipt is normal, an ACK is returned from the projector as follows.
2: ← Projector
0x06
0x89
0x01
0x50
0x4D
0x0A
ACK
PJ
Individual : 1
‘P’
‘M’
End
(3) The projector transmits brightness setting “-3” to the external controller.
3: ← Projector
0x40
0x89
0x01
0x50
0x4D
0x46
0x46
0x46
0x44
0x0A
'@'(Response)
PJ
Individual : 1
‘P’
‘M’
‘F’
‘F’
‘F’
‘D’
End
By the above exchange, it can be confirmed that the projector’s brightness is set to “-3”.
(Example 3) Gamma confirmation
Purpose: To confirm the Green gamma data.
(1) Transmit the data from the external controller to the projector as follows.
1: External controller →
0x3F
0x89
0x01
0x50
0x4D
0x44
0x47
0x0A
'?'(Reference)
PJ
Individual : 1
‘P’
‘M’
‘D’
'G'
End
(2) If the projector receives the data (1) above and the command receipt is normal, an ACK is returned from the projector as follows.
2: ← Projector
0x06
0x89
0x01
0x50
0x4D
0x0A
ACK
PJ
Individual : 1
‘P’
‘M’
End
(3) The projector transmits 512 bytes binary data to the external controller.