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12.2.3. Command Message Reference
PC sends to Monitor command packet followed by “CR”. Every time PC sends control command to the
Monitor, the Monitor shall respond as follows:
1. If the message is received correctly it will send “+” (02Bh) followed by “CR” (00Dh)
2. If the message is received incorrectly it will send “-” (02Dh) followed by “CR” (00Dh)
12.3. Protocol
12.3.1. Set-Function Listing
The PC can control the Commercial Display for specic actions. The Set-Function command allows you to
control the Commercial Display 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”.
CD ID Identication for each of Commercial Display (01~98; default is 01)
If we want to set all Commercial Display settings, use the Commercial Display ID “99”,
and it will not have Reply command on this function.
The Commercial Display ID can be set via the OSD menu for each Commercial Display
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 denes 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
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
Example1: Set Brightness as 76 for Commercial Display-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
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