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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) during changing
the input signal, etc.
[Example] When turning the power ON (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands
from the PC, etc.
30 30 21 0D
'0' '0' '!' '
'
• 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.
Operation
POWER ON
POWER OFF
INPUT COMPUTER 1
INPUT COMPUTER 2
INPUT VIDEO 1
INPUT VIDEO 2
[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.
30 30 5F 72 31 0D
'0' '0' '_' 'r' '1' '
'
5) Volume commands
The volume commands are used for the volume setting of this projector with the value.
ITEM
VOLUME
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'
HEX
30h
31h
[Example] When setting the volume to 15 (standard value) (Figures and symbols enclosed in quotation
marks are ASCII codes.):
Sending commands
from the PC, etc.
30 30 56 4C 31 35 0D
'0' '0' 'V' 'L' '1' '5' '
Status code from
the projector
30 30 21 0D
'0' '0' '!' '
ASCII
HEX
!
21h
"
22h
_r1
5Fh
_r2
5Fh
_v1
5Fh
_v2
5Fh
Status code from
the projector
30 30 5F 72 31 0D
'0' '0' '_' 'r' '1' '
(Not executable in stand-by mode, while the Splash screen is projected or the MUTE is executed.)
ASCII
HEX
VL
56h
4Ch
'2'
'3'
'4'
'5'
32h
33h
34h
35h
Status code from
the projector
'
30 30 56 4C 31 35 0D
'0' '0' 'V' 'L' '1' '5' '
'
Note
This command will not be executed for 1 minute after the power is turned off.
This command will not be executed for 1 minute after the power is turned on.
72h
31h
This command will not be executed in Stand-by mode or the MUTE is executed.
72h
32h
This command will not be executed in Stand-by mode or the MUTE is executed.
76h
31h
This command will not be executed in Stand-by mode or the MUTE is executed.
76h
32h
This command will not be executed in Stand-by mode or the MUTE is executed.
'
VALUE
00 - 31
'6'
'7'
'8'
'9'
36h
37h
38h
39h
'
2
Description
Command for POWER ON
Command receipt confirmation
(Command echo back)
Description
Command for setting the input
signal to COMPUTER 1
Command receipt confirmation
(Command echo back)
Description
Command for setting the volume
Command receipt confirmation
(Command echo back)
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