User Guide

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11.3. Protocol
11.3.1. Set-Function Listing
The PC can control the TV/DS for specic actions. The Set-Function command allows you to control the TV/
DS behavior in a remote site through the RS232 port. The Set-Function packet format consists of 9 bytes.
Set-Function description:
Length: Total Byte of Message excluding “CR”.
TV/DS ID Identication for each of TV/DS (01~98; default is 01)
If we want to set all TV/DS settings, use the TV/DS ID “99”, and it will not have Reply
command on this function.
The TV/DS ID can be set via the OSD menu for each TV/DS set.
Command Type Identify command type,
“s” (0x73h) : Set Command
“+” (0x2Bh) : 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
Set-Function format
Send:(CommandType=”s”)
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: For VT2405LED-1 and VT3205LED, the set “Power on” command is the exception
Reply:(CommandType=”+”or“-”)
Name Length ID
Command
Type
CR
Byte Count 1 Byte 2 Byte 1 Byte 1 Byte
Bytes order 1 2~3 4 5
NOTE:
1. The reply for “Power on” command is the exception for VT2405LED-1 and VT3205LED.
It’s 0x322B0D ( 2+<CR>).
2. When PC applies command to all displays (ID=99), only the #1 set needs to reply by the name of ID=1.
Example1: Set Brightness as 76 for TV-02 and this command is valid
Send(HexFormat)
Name Length ID
Command
Type
Command Value1 Value2 Value3 CR
Hex
0x38
0x30
0x32
0x73 0x24 0x30 0x37 0x36 0x0D
Reply(HexFormat)
Name Length ID
Command
Type
CR
Hex
0x34
0x30
0x32
0x2B 0x0D