ViewSonic IFP6530

90

The PC can interrogate the LFD for specic informaon. The Get-Funcon packet
format consists of 9 bytes which is similar to the Set-Funcon packet structure.
Note that the “Value” byte is always = 000.

Length:
Total Byte of Message excluding “CR”.
TV/DS ID
Identification for each of TV/DS (01~98; default is 01).
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 defines the value.
CR
0x0D


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

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

Name Length ID Command Type CR
Byte
Count
1 Byte 2 Byte 1 Byte 1 Byte
Bytes
order
1 2~3 4 5