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2
3) Control sequence
(1) Send the command from the personal computer to the projector. (The commands shall be sent at intervals
of at least 400ms.)
(2) The projector will send a return command 400ms* 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 confirms 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.
* : The sending time of return command may delay depending on the operating conditions such as during
changing the input signal.
[Example] When turning the power ON (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands Status code from Description
from the PC, etc. the projector
30 30 21 0D Command for POWER ON
'0' '0' '!' ' '
30 30 21 0D Command receipt confirmation
'0' '0' '!' ' ' (Command echo back)
Sending commands Status code from Description
from the PC, etc. the projector
30 30 5F 72 31 0D Command for setting the input
'0' '0' '_' 'r' '1' ' ' signal to COMPUTER 1
30 30 5F 72 31 0D Command receipt confirmation
'0' '0' '_' 'r' '1' ' ' (Command echo back)
Operation
ASCII HEX Note
POWER ON ! 21h
This command will not be executed for 1 minute after the power is turned off.
POWER OFF " 22h
This command will not be executed 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 VIDEO 1 _v1 5Fh 76h 31h
This command will not be executed in Stand-by mode or when the MUTE is executed.
INPUT VIDEO 2 _v2 5Fh 76h 32h
This command will not be executed in Stand-by mode or when the MUTE is executed.
• Any commands will not be executed for 10 seconds after the power is turned on.
4) Operation commands
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.
[Example] When setting the input signal to COMPUTER 1 (Figures and symbols enclosed in quotation
marks are ASCII codes.):
5) Volume commands (Not executable in stand-by mode, while the splash screen is projected or the MUTE is executed.)
The volume commands are used for the volume setting of this projector with the value.
[Example] When setting the volume to 15 (standard value) (Figures and symbols enclosed in quotation
marks are ASCII codes.):
Sending commands Status code from Description
from the PC, etc. the projector
30 30 56 4C 31 35 0D Command for setting the volume
'0' '0' 'V' 'L' '1' '5' ' '
30 30 56 4C 31 35 0D Command receipt confirmation
'0' '0' 'V' 'L' '1' '5' ' ' (Command echo back)
ITEM ASCII HEX VALUE
VOLUME VL 56h 4Ch 00 - 31
How to set the grade
Use the ASCII codes to set the grade for setting data. Please refer to the table below for the HEX code.
ASCII '0' '1' '2' '3' '4' '5' '6' '7' '8' '9'
HEX 30h 31h 32h 33h 34h 35h 36h 37h 38h 39h