ViewSonic VT2755LED - Page 49

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ViewSonic VT2755LED
ENGLISH
5. Get-Function Listing
The PC can interrogate the LCD Monitor for specic information. The Get-Function packet
format consists of 9 bytes which is similar to the Set-Function packet structure. Note that the
“Value” byte is always = 00.
Get-Function description:
Length Total Byte of Message excluding “CR”
TV ID Identication for each of TV. The TV ID doesn’t be supported by HDTV power
status on standby.
Command Type
Identify command type,
“g” (0x67h) : Get Command
“r” (0x72h) : Valid command Reply
“-“ (0x2Dh) : Invalid command Reply
Command Function command code: One byte ASCII code
Value[1~3] Three bytes ASCII that denes the value
CR 0x0D
Get-Function format:
Send (Command Type= “g”)
Name
Length
ID Command
Type
Command
Value1 Value2
Value3 CR
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5 6 7 8 9
[NOTE] Get “Power STBY status” is the exception.
(Command Type= “g”, Only for HDTV power status on standby)
Name
Length
Command
Type
Command
Value1 Value2
Value3
CR
Byte Count 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2 3 4 5 6 7
Reply: (Command Type= “r” or “-”)
If the Command is valid, Command Type = “r”
Name Length
ID Command
Type
Command
Value1 Value2
Value3
CR
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5 6 7 8 9
[NOTE] The reply for “Power STBY status” command is the exception.
It’s 0x36 72 6C 30 30 30 0D ( 6rl000<CR>).
If the Command is valid, Command Type = “r”, Only for HDTV power status on standby.
Name Length Command
Type
Command Value1 Value2 Value3 CR
Byte Count 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte 1 Byte
Bytes order 1 2 3 4 5 6 7
If the Command is Not valid, Command Type= “-”
Name Length ID Command
Type
CR
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5