29
Using the LCD with a Personal Computer
–continued
[Example] Turn the power ON ( ' ' is for ASCII code)
4) Operation commands
The operation commands execute the basic operation setting of this LCD monitor.
It may not operate when changing the signal:
HEX
21h
22h
5Fh 72h 31h
5Fh 72h 32h
5Fh 72h 33h
5Fh 76h 31h
5Fh 76h 32h
Operation
POWER ON
POWER OFF
INPUT RGB 1
INPUT RGB 2
INPUT RGB 3
INPUT VIDEO
INPUT DVD/HD
ASCII
!
"
_r1
_r2
_r3
_v1
_v2
Sending commands
from the PC etc.
30 30 21 0D
'0' '0' '!' ' '
30 30 21 0D
'0' '0' '!' ' '
Status code from LCD
monitor
Meaning
Command for POWER ON
Command received
(Command echo back)
• 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.
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
Command
from
Monitor
Detail of command
30 30 76 50 0D
'0''0'v''P'[enter]
Ask about the power
status of monitor.
30 30 76 50 31 0D
'0''0''v''P''1'[enter]
Monitor is powered-on.
ASC II
HEX
Function Data(Receive) Function
Data(Receive)
ON
vP
1
76 50
31
Power
OFF(stand by)
vP
0
76 50
30
RGB- 1(DV I-D)
vI
r1
76 49
72 31
RGB- 2(D-SUB)
vI
r2
76 49
72 32
RGB- 3(BNC)
vI
r3
76 49
72 33
Video
vI
v1
76 49
76 31
Inp ut
DVD/HD
vI
v2
76 49
76 32
HIBRIGHT
vM
p1
76 4D
70 31
Picture m od e
STAND ARD
vM
p2
76 4D
70 32
Structure of the Read-command
3) Control sequence (continued)
*: The sending time of return command may delay depending on the condition (during changing of the
input signal, etc.).
