Protocol 2 : Without Id; Set Function Listing - ViewSonic VS11895 User Manual

Protocol 2 : without ID

6.

6.1 Set function listing

The PC can control the LCD Monitor for specific actions. The Set-Function command allows you to
control the LCD monitor behavior in a remote sit through the RS232 port. The Set-Function packet
format consists of 5 bytes. Note that the "Value" byte is always = 00.
Set-Function description:
Total bytes of message = 5 ASCII (35H) excluding "CR"
Length:
Function command code: One byte ASCII code
Command:
Three bytes ASCII that defines the value
Value[1~3]:
Set-Function format:
Name
Length
Byte Count 1 Byte
Bytes order 1
All Set-Function from PC to Monitor (ASCII)
Name
Length
Byte Count
5
Bytes order 1
Example: Set Mute-ON command (ASCII)
Name
Length
Byte Count
5
Bytes order 1
Example: Set Mute-OFF command (ASCII)
Name
Length
Byte Count
5
Bytes order 1
Example: Set Tint to 50 command (ASCII)
Name
Length
Byte Count
5
Bytes order 1
LCD Monitor will send "+" (02Bh) and "CR" bytes to PC after receiving a valid command.
LCD Monitor will send "-" (02Dh) and "CR" bytes to PC if the command is not valid.
Value Range: Three bytes ASCII value range
Command Code: Function command code in ASCII
CD4620/CD4220 set command table
Set Function Length
Power 5
Input Select 5
Contrast 5
ViewSonic CD4220
Command Value1
1 Byte 1 Byte
2 3
Command Value1
1 Byte 1 Byte
2 3
Command Value1
6 0
2 3
Command Value1
6 0
2 3
Command Value1
' 0
2 3
Command Command
Code (ASCII) Code (Hex)
! 21
" 22
# 23
Value2 Value3 CR
1 Byte 1 Byte 1 Byte
4 5 6
Value2 Value3 CR
1 Byte 1 Byte 00D
4 5 6
Value2 Value3 CR
0 0 00D
4 5 6
Value2 Value3 CR
0 1 00D
4 5 6
Value2 Value3 CR
5 0 00D
4 5 6
Value Range
(Three ASCII bytes)
000: STBY Controlled power status: ON or
Standby
001: ON
000 : VGA
001 : HDMI1
002 : HDMI2
003 : AV
004 : YPbPr
005 : S-Video
000 ~ 100
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