Vaddio Canon VC-C50i Programmers - Manual (Page 135)

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14.8 Internal Infrared Light Status Request
System Control Command Type 1
Function Returns the internal infrared light ON/OFF setting status.
Command 0077h
Parameter
None
Length 1 byte Status
Value 0h: Internal infrared light OFF
1h: Internal infrared light ON
Reference
Format of Control Code
d0 d1 d2 d3 d4 d5
Header Device Num Command End mark
FFh 30h 3Xh 00h 77h EFh
Answer Format
No Error
d0 d1 d2 d3 d4 d5 d6
Header Device Num Error Code Status End mark
FEh 30h 3Xh 30h 30h s0 EFh
⇓
Setting value indicates in hexadecimal 1 figure and its ASCII code is Status value.
s0
Internal infrared light OFF:
0h ⇒ 30h
Internal infrared light ON: 1h ⇒ 31h
Generated Error
d0 d1 d2 d3 d4 d5
Header Device Num Error Code End mark
FEh 30h 3Xh e0 e1 EFh
⇓
Error Flag indicates in 2 figures hexadecimal and returns ASCII code value.
Example: e0 e1
Mode Error :
10010000B ⇒ 90h ⇒ 39h 30h
Conditions for setting of error flag
Mode Error •Not in status of Camera ON.
•Not in status of Host Control Mode.