Document Camera Instruction Manual

90
ABOUT
RS-232C
ENGLISH
Data Format Specification
This command is executed in the form of 1-command/1-packet. The next command is not
accepted until the previous processing is completed.
• The communication command always starts with STX (Start of Text), and ends with ETX (End
of Text).
• If the communication format of command name is wrong, NAK (Negative Acknowledge)
will be sent from this product as a result of failing to receive correctly.
• When communication format is received correctly, this product sends ACK (Normal
Acknowledge).
■ Operation Command (PC → This product)
Each operation command is executed in ASCII code, and transmitted in a set of 7 bytes as
follows:
S
T
X
E
T
X
Command
(PC)
(This product) → ACK
Data Parameter
S
T
X
Posi/
Nega
Color/
B&W
Camera Mode
/SD Mode
Display Flickerless
E
T
X
Input
selection
Lighting
Pause
Gamma
selection
Monitor
output
USB
Mode
S
T
X
Image
rotation
Edge
effect
White
balance
Text
E
T
X
Iris
mode
V
56H
H
48H
N
4EH
S
T
X
E
T
X
20H
S
T
X
E
T
X
20H
S
T
X
E
T
X
■ Response Data Format (This product → PC)
All response data is transmitted as ASCII code, corresponding to the parameters in the
operation command table.
• Status 0
• Status 2
•
ROM Ver0 (MASTER)
• ROM Ver1 (SLAVE)
V
56H
H
48H
N
4EH
S
T
X
E
T
X
• ROM Ver2 (LENS)
V
56H
H
48H
N
4EH
S
T
X
E
T
X
• ROM Ver3 (MAIN) . . . Upper 6 bytes
• ROM Ver4 (MAIN) . . . Lower 4 bytes