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RS-232C Specifications and Command Settings
Computer control
A computer can be used to control the projector by connecting an RS-232C serial control cable
(cross type, sold separately) to the projector. (See page 27 for connection.)
Communication conditions
Set the serial port settings of the computer to match that of the table.
Signal format: Conforms to RS-232C standard.
Baud rate: * 9,600 bps/115,200 bps
Data length: 8 bits
* Set the projector's baud rate to the same rate as used by the computer.
Basic format
Commands from the computer are sent in the following order: command, parameter, and return
code. After the projector processes the command from the computer, it sends a response code to
the computer.
Command format
C1 C2 C3 C4 P1 P2 P3 P4
Command 4-digit
Response code format
Normal response
O
K
Return code (
Info
• When controlling the projector using RS-232C commands from a computer, wait for at least 30
seconds after the power has been turned on, and then transmit the commands.
• When more than one code is being sent, send each command only after the response code for the
previous command from the projector is verified.
Commands
Example: When turning on the projector, make the following setting.
P
O
W
R
CONTROL CONTENTS
Power Off
Power On
INPUT 1 (RGB1)
INPUT 2 (RGB2)
INPUT 3 (Video1)
INPUT 4 (Video2)
Note
• If an underbar (_) appears in the parameter column, enter a space.
Downloaded from ProjectorsManual.com Manuals
54
Parameter 4-digit
Problem response (communication error or incorrect command)
0DH
)
Computer
_
_
_
COMMAND PARAMETER
P
O
W
R
_
_
P
O
W
R
_
_
I
R
G
B
_
_
I
R
G
B
_
_
I
V
E
D
_
_
I
V
E
D
_
_
E
R
R
→
1
←
RETURN
_
0
OK or ERR
_
1
OK or ERR
_
1
OK or ERR
_
2
OK or ERR
_
1
OK or ERR
_
2
OK or ERR
Parity bit: None
Stop bit: 1 bit
Flow control: None
0DH
Return code (
0DH
Return code (
Projector
O
K
)
)
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Troubleshooting
