Protocol; Set-Function Listing - ViewSonic VS17729 User Manual

Protocol

Set-Function Listing

The PC can control the Display for specific actions. The Set-Function command
allows you to control the Display behavior at a remote site through the RS-232 port.
The Set-Function packet format consists of 9 bytes.
Set-Function DescriptionE
Length:
LFD ID
Command Type
Command:
Value[1~3]:
CR
Set-Function Format
SendE (Command Oype="s")
Name Length
Byte 1 Byte
Count
Bytes 1
order
ReplyE (Command Oype="+" or "-")
Name
Byte
Count
Bytes
order
NOTE: When PC applies command to all displays (ID=99), only the #1 set needs
to reply by the name of ID=1.
Total Byte of Message excluding "CR"
Identification for each of Display (01~98; default is 01)
ID "99" means to apply the set command for all connected
displays. Under such circumstances, only ID#1 display has to
reply.
The LFD ID can be set via the OSD menu for each Display.
Identify command type,
"s" (0x73h): Set Command
"+" (0x2Bh): Valid command Reply
"-" (0x2Dh): Invalid command Reply
Function command code: One byte ASCII code.
Three bytes ASCII that defines the value.
0x0D
ID Command Type
2 1 Byte
Byte
2~3 4
Length ID
1 Byte 2 Byte
1 2~3
Command Value1 Value2 Value3
1 Byte 1 Byte
5
Command Type
1 Byte
4
111
1 Byte 1 Byte
6 7 8
CR
1 Byte
5
CR
1
Byte
9