Vaddio Canon VC-C50i Programmers - Manual (Page 81)

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13.21 Zoom Speed Request
Camera Control Command Type 1
Function To return present zooming speed.
Command 00B4h
Length 1 byte Parameter
Value 2h
Length 1 byte Status
Range 0~7
Reference •Default value is 7.
Format of Control Code
d0 d1 d2 d3 d4 d5 d6
Header Device Num Command Parameter End mark
FFh 30h 3Xh 00h B4h 32h EFh
Answer Format
In case of No Error
d0 d1 d2 d3 d4 d5 d6
Header Device Num Error Code Speed End mark
FEh 30h 3Xh 30h 30h s0 EFh
⇓
Zoom speed indicates in hexadecimal 1 figure and status value is its ASCII code.
Example:
s0
4 ⇒ 4h ⇒ 34h
In case of 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
In case of Busy :
00010000B ⇒ 10h ⇒ 31h 30h
In case of Mode Error : 10010000B ⇒ 90h ⇒ 39h 30h
Condition of Error flag to be set
Busy •In process of camera initializing operation by Camera Reset
command, etc.
•In case of executing Preset Move command.
Mode Error •Not in status of Camera ON.
•Not in status of Host Control Mode.