Elmo Document Camera P30S - Manual (Page 68)

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147
ABOUT RS-232C
ENGLISH
This command is executed in the form of 1 command/1 packet. Until one
processing is completed, the next command is not accepted.
• The communication command always starts with STX (Start of Text) and ends
with ETX (End of Text).
• If the communication format or command name is wrong, the Camera will not
respond normally but send NAK (Abnormal receiving: Negative Acknowledge).
• When the correct communication format is received, the Camera sends ACK
(Normal receiving: Acknowledge).
Operation command (PC → Camera)
Each operation command is executed in ASCII code, and transmitted in a set of 7
bytes as follows:
Response data format (Camera → PC)
All response data is transmitted in ASCII code, corresponding to the parameters in
the operation command table.
Specifications of RS-232C
Data Format Specifications
S
T
X E
T
X
Command (PC)
(Camera) ɨ ACK
Data Parameter
S
T
X
Posi
/Nega
Color
/B&W
Output
video
Display Flickerless
E
T
X
Guide Lamp
ȆStatus 2
ȆROM Ver.1 (SLAVE)
ȆROM Ver.2 (LENS)
ȆROM Ver.3 (MAIN) Ȥ Upper 6 bytes
ȆROM Ver.4 (MAIN) Ȥ Lower 4 bytes
ȆStatus 0
Pause
Gamma
switching
Resolution
USB
mode
S
T
X Image
rotation
Edge
effect
White
balance
Text
E
T
X
Iris
V
56H
H
48H
Q
51H
S
T
X E
T
X
V
56H
H
48H
Q
51H
S
T
X E
T
X
S
T
X E
T
X
20H
S
T
X E
T
X
20H
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