Vaddio Canon VC-C50i Programmers - Manual (Page 168)

167
Answer Format
In case of No Error
d0 d1 d2 d3 d4 d5 d6 d7
Header Device Num Error Code Status End mark
FEh 30h 3Xh 30h 30h s0 s1 EFh
⇓
Data indicates in hexadecimal 2 figures and its ASCII code is Status value.
Example: Data "A"
s0 s1
41h ⇒ 34h 31h
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 Parameter Error :
01010000B ⇒ 50h ⇒ 35h 30h
In case of Mode Error : 10010000B ⇒ 90h ⇒ 39h 30h
Condition of Error flag to be set
Parameter Error •In case of assigned address outside range.
Mode Error
•Not in status of Camera ON.
•Not in status of Host Control Mode.