Справочник Пользователя для Viewsonic CD4620

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ViewSonic
 CD4620 
51 
6. 
Protocol 2 : without ID 
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:   
Length:  
Total bytes of message = 5 ASCII (35H) excluding “CR” 
Command:  
Function command code: One byte ASCII code   
Value[1~3]:  
Three bytes ASCII that defines the value   
 
Set-Function format: 
Name  
Length   Command
Value1  Value2  Value3 CR 
Byte Count   
1 Byte   
1 Byte   
1 Byte 
1 Byte 
1 Byte  1 Byte 
Bytes order 
 
 
All Set-Function from PC to Monitor (ASCII) 
Name  
Length   Command
Value1  Value2  Value3 CR 
Byte Count   
5   
1 Byte   
1 Byte 
1 Byte 
1 Byte  00D
Bytes order 
 
Example: Set Mute-ON command (ASCII) 
Name  
Length   Command
Value1  Value2  Value3 CR 
Byte Count   
5  
6  
0  
00D
Bytes order 
 
Example: Set Mute-OFF command (ASCII) 
Name  
Length   Command
Value1  Value2  Value3 CR 
Byte Count   
5  
6  
00D
Bytes order 
 
Example: Set Tint to 
50
 command (ASCII) 
Name  
Length   Command
Value1  Value2  Value3 CR 
Byte Count   
5  
‘  
5 0 
00D
Bytes order 
 
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 
Length
Command  
Command
Value Range  
Set Function   
 
Code (ASCII)    Code (Hex)
(Three ASCII bytes) 
Comments 
000: STBY 
Power  
21 
001: ON 
Controlled    power status: ON or 
Standby 
000 : VGA 
001 : HDMI1 
002 : HDMI2 
003 : AV 
004 : YPbPr 
Input Select   
“ 
22 
005 : S-Video 
 
 
Contrast  
#  
23 
000 ~ 100