Mitsubishi Electric Untitle LDT37Iv User Manual page 32

3) Control sequence
(1) The command from a computer to the LCD monitor will be sent in 600ms.
(2) The LCD monitor will send a return command 600ms* after it has received and encoded. If the command isn't
received correctly, the LCD monitor 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 LCD monitor sends various codes other than return code. When having a control sequence by RS-232C, reject other
codes from personal computers side.
*: The sending time of return command may delay depending on the condition (during changing of the input signal, etc.).
Example: Turn the power ON ( ' ' is for ASCII code)
Sending commands
from the PC
30 30 21 0D
'0' '0' '!' ' '
4) Operation commands
The operation commands execute the basic operation setting of this LCD monitor.
It may not operate when changing the signal:
Operation ASCII
POWER ON !
POWER OFF "
INPUT RGB 1 _r1
INPUT RGB 2 _r2
INPUT RGB 3 _r3
INPUT VIDEO _v1
INPUT DVD/HD _v2
INPUT S-VIDEO* _v3
• POWER OFF command should be operated over 1 minute after the power is turned on.
• POWER ON command should be operated over 1 minute after the power is turned off.
* S-VIDEO is SEPARATE only
5) Read command
Host computer sends the command without Data-code to monitor.
After receiving this command, the monitor returns the command with Data-code of current status to host computer.
< ex. > When Host computer ask Power status of monitor, the status of monitor is powered-on.
Command from computer
30 30 76 50 0D 0''0'v''P'[enter]
Structure of the Read-command
ON
POWER
OFF(stand by)
RGB-1(DVI-D)
RGB-2(D-SUB)
Input
RGB-3(BNC)
Video
DVD/HD
S-VIDEO
HIGHBRIGHT
Picture mode
STANDARD
Around
Temperature
AV board
of Internal
monitor
Around
Power
PCB
Status code from
LCD monitor
30 30 21 0D Command received
'0' '0' '!' ' ' (Command echoed back)
HEX
21h
22h
5Fh 72h 31h
5Fh 72h 32h
5Fh 72h 33h
5Fh 76h 31h
5Fh 76h 32h
5Fh 76h 33h
Command from Monitor
30 30 76 50 31 0D '0''0''v''P''1'[enter]
ASCII
Function Data (Receive)
vP 1
vP 0
vI r1
vI r2
vI r3
vI v1
vI v2
vI v3
vM p1
vM p2
resolution
tcx1
(ex.) +25.0
0.5˚C
resolution
tc1
(ex.) +25
1˚C
resolution
(ex.) +30.5
tcx2
0.5˚C
resolution
(ex.) +31
tc2
1˚C
Meaning
Command for
POWER ON
Detail of command
Ask about the power status of monitor.
Monitor is powered-on.
Function
76 50
76 50
76 49
76 49
76 49
76 49
76 49
76 49
76 4D
76 4D
74 63 78 31
74 63 31
74 63 78 32
74 63 32
English-30
HEX
Data (Receive)
31
30
72 31
72 32
72 33
76 31
76 32
76 33
70 31
70 32
2B 20 32 35
2E 30
2B 20 32 35
2B 20 33 30 2E 35
2B 20 33 31