2
3) Control sequence
(1) Send the command from the personal computer to the projector.
(2) The projector will send a return command after it receives an end code. If the command is not received
correctly, the projector will not send the return command.
(3) The personal computer checks the command and con
fi
rms if the sent command has been executed or not.
(4) This projector sends various codes other than the return code. When having a control sequence by RS-232C,
reject other codes from the personal computer.
• During signal switching, the command may not take effect even when the projector sends the return command.
After signal switching completes, wait for the mode indication to disappear before sending the next command.
• When sending commands successively, wait to receive the return command of the current command before
sending a next command.
• Keep intervals of at least 400 ms between receipt of a return command and sending of a next command.
• Any commands will not be executed for 10 seconds after the power is turned on.
[Example] When turning the power ON. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands
from the PC, etc.
Status code
from the projector
Description
30 30 21 0D
‘0’ ‘0’ ‘!’ ‘ ’
Command for POWER ON
30 30 21 0D
‘0’ ‘0’ ‘!’ ‘ ’
Command receipt con
fi
rmation
(Command echo back)
4) Operation commands
(Not executable in stand-by mode. When the commands for input select are sent
while the splash screen is being displayed, the splash screen is only canceled.)
The operation commands are used for the basic operation setting of this projector. They may not be executed
while the signals are changed. The operation commands have no data codes.
Operation
ASCII
HEX
Note
POWER ON
!
21h
This command is invalid for 1 minute after the power is turned off.
POWER OFF
"
22h
This command is invalid for 1 minute after the power is turned on.
INPUT COMPUTER 1
_r1
5Fh 72h 31h
This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT COMPUTER 2
_r2
5Fh 72h 32h
This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT DVI
_d1
5Fh 64h 31h
This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT VIDEO
_v1
5Fh 76h 31h
This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT S-VIDEO
_v2
5Fh 76h 32h
This command will not be executed in Stand-by mode or when the MUTE is executed.
[Example] When setting the input signal to COMPUTER 1. (Figures and symbols enclosed in quotation marks
are ASCII codes.):
Sending commands
from the PC, etc.
Status code
from the projector
Description
30 30 5F 72 31 0D
‘0’ ‘0’ ‘_’ ‘r’ ‘1’ ‘ ’
Command for setting the input signal
to COMPUTER 1
30 30 5F 72 31 0D
‘0’ ‘0’ ‘_’ ‘r’ ‘1’ ‘ ’
Command receipt con
fi
rmation
(Command echo back)
5) Volume commands
(Not executable in stand-by mode. Possible only to read during muting.)
The volume commands are used for the volume setting of this projector with the value.
ITEM
ASCII
HEX
VALUE
VOLUME
VL
56h 4Ch
00–21
How to set the value
Use the ASCII or HEX code as shown below to set the value.
ASCII
‘0’
‘1’
‘2’
‘3’
‘4’
‘5’
‘6’
‘7’
‘8’
‘9’
HEX
30h
31h
32h
33h
34h
35h
36h
37h
38h
39h
[Example] When setting the volume to 15. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands
from the PC, etc.
Status code
from the projector
Description
30 30 56 4C 31 35 0D
‘0’ ‘0’ ‘V’ ‘L’ ‘1’ ‘5’ ‘ ’
Command for setting the volume
30 30 56 4C 31 35 0D
‘0’ ‘0’ ‘V’ ‘L’ ‘1’ ‘5’ ‘ ’
Command receipt con
fi
rmation
(Command echo back)
