Canon VC-C50i/VC-C50iR Programmer's Manual page 51

Format of Control Code (Example: Pan Right Start, Tilt Down Start)
d0 d1
Header Device Num
FFh 30h
Answer Format
d0 d1
Header Device Num
FEh 30h
Error Flag indicates in 2 figures hexadecimal and returns ASCII code value.
Example:
In case of No Error :
In case of Busy :
In case of Parameter Error :
In case of Mode Error :
Condition of Error flag to be set
Busy •In case of executing Home Position, Pedestal Initialize 1 and
Pedestal Initialize 2 commands.
•In case of executing Pan/Tilt Angle Assignment and Preset
Move commands.
•Executing Pan/Tilt running by Pedestal Control command.
Parameter Error •Assign illegal parameters.
Mode Error •After Power ON, Not executed Pedestal Initialize.
•Not in status of Camera ON.
•Not in status of Host Control Mode.
d2 d3 d4
Command
3Xh 00h 60h
d2 d3 d4
Error Code
3Xh e0
⇓
00000000B ⇒ 00h ⇒ 30h 30h
00010000B ⇒ 10h ⇒ 31h 30h
01010000B ⇒ 50h ⇒ 35h 30h
10010000B ⇒ 90h ⇒ 39h 30h
d5 d6
Parameter
31h 32h
d5
End mark
e1 EFh
50
d7
End mark
EFh
e0 e1