Vaddio Canon VC-C50i Programmers - Manual (Page 94)

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13.33 Shutter Speed Request
Camera Control Command Type 1
Function To return present shutter speed.
Command 00A5h
Length 1 byte Parameter
Value 6h
Length 2 byte Status
Range 00h~1Bh or 80h~83h
Reference • To return the phase value assigned in [1/80000seconds -
1/60seconds( PAL:one/50seconds) - 1seconds].
See Shutter Speed Corresponding Table.
Format of Control Code
d0 d1 d2 d3 d4 d5 d6
Header Device Num Command Parameter End mark
FFh 30h 3Xh 00h A5h 36h EFh
Answer Format
In case of No Error
d0 d1 d2 d3 d4 d5 d6 d7
Header Device Num Error Code Shutter Speed End mark
FEh 30h 3Xh 30h 30h s0 s1 EFh
⇓
Shutter Speed Parameter indicates in hexadecimal 2 figures and its ASCII Code is status
value.
Example: s0
s1
10 ⇒ 0Ah ⇒ 30h 41h
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.