Get-Function Listing - ViewSonic CD4233 Hardware Interface Spec And Software Protocols

Commercial display rs-232 protocol
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Monitor ID
Number
Key Pad
Remote Control
Key Pad
Factory reset
4.2

Get-Function Listing

The PC can interrogate the LCD Monitor for specific information. The Get-Function packet format
consists of 5 bytes which is similar to the Set-Function packet structure. Note that the "Value" byte
is always = 00.
Get-Function description:
Length:
Total bytes of message = 5 ASCII (35H), excluding "CR"
Command:
Get-Function command code: One byte ASCII code
Value[1~3]:
Always = 000
Get-Function format from PC to LCD (ASCII)
Name
Length
Byte Count
Bytes order
Monitor shall response to Get-Function with the following packet format:
LCD Monitor response packet format:
Name
Length
________________________________________________________________
May 28, 2007
5
=
5
@
5
A
5
B
5
C
5
~
Command
Value1
5
1 Byte
1
2
Value1
Value2
Commercial Display RS-232 Protocol
004 : YPbPr
005 : S-Video
3D
001 ~ 026
40
000 ~ 009
41
000 : POWER
001 : SOURCE
002 : MENU/EXIT
003 : UP
004 : DOWN
005 : LEFT
006 : RIGHT
007 : MUTE
42
000: Disable
001: Enable
002: Pass through
43
000: Disable
001: Enable
7E
0
Value2
Value3
0
0
0
3
4
5
Value3
Value4
12 / 16
Commercial Display RS-232 Protocol
Revision 1.x
Disable: RCU has no effect on
HDTV.
Enabled: RCU controls the
HDTV. This is the power up
default on the HDTV.
Pass through: RCU has no
effect on HDTV and all RCU
command codes are transmitted
to FC via the RS232 port. See
page 26 for more details
Disable: Key Pad have no
effect on HDTV.
Enabled: Key Pad control the
HDTV. This is the power up
default on the HDTV.
Rests HDTV to factory setting
CR
00D
6
CR

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