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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. Parity bit: None
Baud rate: * 9,600 bps/115,200 bps Stop bit: 1 bit
Data length: 8 bits Flow control: None
* 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.
• 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.
Info
Return code (0DH)
C1 C2 C3 C4 P1 P2 P3 P4
Normal response
Command 4-digit Parameter 4-digit
Command format
• If an underbar (_) appears in the parameter
column, enter a space.
Note
Power Off
Power On
Comp. 1
Comp. 2
S-Video
Video
RGB
HDMI
OK or ERR
OK or ERR
OK or ERR
OK or ERR
OK or ERR
OK or ERR
OK or ERR
OK or ERR
P
P
I
I
I
I
I
I
O
O
V
V
V
V
R
R
W
W
E
E
E
E
G
G
R
R
D
D
D
D
B
B
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
0
1
1
2
3
4
1
2
CONTROL CONTENTS
COMMAND PARAMETER
RETURN
ProjectorComputer
Commands
Example: When turning on the
projector, make the
following setting.
119
218
HDMI Terminal
NamePin No.
1.
2.
3.
4.
5.
6.
7.
TMDS Data2+
TMDS Data2 Shield
TMDS Data2-
TMDS Data1+
TMDS Data1 Shield
TMDS Data1-
TMDS Data0+
NamePin No.
TMDS Data0 Shield
TMDS Data0-
TMDS Clock+
TMDS Clock Shield
TMDS Clock-
CEC
8.
9.
10.
11.
12.
13.
NamePin No.
Reserved
SCL
SDA
DDC/CEC Ground
+5V Power
Hot Plug Detect
14.
15.
16.
17.
18.
19.
Connecting Pin Assignments (Continued)
POWR _1__
OK
→
←
Response
code format
Problem response
(communication error or incorrect command)
OK
Return code (0DH)
ERR
Return code (0DH)
06.7.19, 4:29 PMPage 58