Mitsubishi LVP-SA51U User Manual page 29

3) Control sequence
(1) Send the command from a personal computer to the projector. (The commands must be sent at least
400ms apart.)
(2) The projector will send a return command 400ms* after it has received 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 command which has been sent 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 personal computer side.
• * : The sending time of return command may delay depending on the condition (during changing the
input signal, etc.).
[Example] Turn the power ON (' 'is for ASCII code)
Sending commands
from the PC etc.
30 30 21 0D
'0' '0' '!' ' '
4) Operation commands
The operation commands execute the basic operation setting of this projector. It may not operate when chang-
ing the signal.
Operation
POWER ON
POWER OFF
INPUT COMPUTER
INPUT VIDEO
• POWER OFF command will not work for 1 minute after the power is turned on.
• POWER ON command will not work for 1 minute after the power is turned off.
[Example] Set the input signal to COMPUTER (' 'is for ASCII code)
Sending commands
from the PC etc.
30 30 5F 72 31 0D
'0' '0' '_' 'r' '1' ' '
5) Volume commands
The volume commands execute the volume setting of this projector with the value.
ITEM
VOLUME
How to set the grade
Use ASCII letters code to set the grade for setting data. Please refer to the table below for HEX code.
ASCII '0' '1'
HEX 30h 31h
[Example] Set the volume to 30 (Standard value) (' 'is for ASCII code)
Sending commands
from the PC etc.
30 30 56 4C 33 30 0D
'0' '0' 'V' 'L' '3' '0' '
Status code from
projector
30 30 21 0D
'0' '0' '!' '
ASCII HEX
! 21h
" 22h
_r1 5Fh
_v1 5Fh
Status code from
projector
30 30 5F 72 31 0D
'0' '0' '_' 'r' '1' '
ASCII HEX
VL 56h 4Ch
'2' '3' '4' '5'
32h 33h 34h 35h
Status code from
projector
'
30 30 56 4C 33 30 0D
'0' '0' 'V' 'L' '3' '0' '
'
72h 31h
76h 31h
'
VALUE
00 - 60
'6' '7' '8' '9'
36h 37h 38h 39h
'
2
Meaning
Command for POWER ON
Command received
(Command echo back)
Meaning
Command for setting the input
signal to COMPUTER
Command received
(Command echo back)
Meaning
Command for setting the volume
Command received
(Command echo back)