Acer DV433 User Manual - Page 57

Send packet from computer, Return packet from display to computer, Length, bytes, Value >= 3 bytes

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Chapter 3 How to use the LCD Display Monitor 57 Two basic commands are shown here as examples. Note that these commands are used when a single computer connects to a single display. Contact your dealer for advanced command specifications if you want to connect multiple displays, or perform complicated controls using other commands than the basic commands. Example 1: Set display ID-02 brightness to 76; this command is valid. Send packet from computer Byte Name 0 1 2 Length ID (1 byte) (2 bytes) Hex 0x38 0x30 0x32 3 Cmd Type (1 byte) 0x73 4 Cmd Code (1 byte) 0x24 5 6 Value (>= 3 bytes) Byte1 Byte2 0x30 0x37 7 Byte3 0x36 8 CR (1 byte) 0x0D Return packet from display to computer Byte Name 0 Length 1 0x32 Hex 0x34 0x30 2 0x32 3 Cmd Type 0x2B 4 CR 0x0D Example 2: Retrieve brightness value from display ID-02; this command is valid, and the brightenss value is 80. Send packet from computer Byte Name 0 1 2 Length ID (1 byte) (2 bytes) Hex 0x38 0x30 0x32 3 Cmd Type (1 byte) 0x67 4 Cmd Code (1 byte) 0x62 5 6 Value (>= 3 bytes) Byte1 Byte2 0x30 0x30 7 Byte3 0x30 8 CR (1 byte) 0x0D Return packet from display to computer Byte Name 0 1 2 Length ID (1 byte) (2 bytes) Hex 0x38 0x30 0x32 3 Cmd Type (1 byte) 0x72 4 Cmd Code (1 byte) 0x62 5 6 Value (>= 3 bytes) Byte1 Byte2 0x30 0x38 7 Byte3 0x30 8 CR (1 byte) 0x0D

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57
Chapter 3
How to use the LCD Display Monitor
Two basic commands are shown here as examples. Note that these commands are used when a single computer
connects to a single display. Contact your dealer for advanced command specifications if you want to connect multiple
displays, or perform complicated controls using other commands than the basic commands.
Example 1: Set display ID-02 brightness to 76; this command is valid.
Example 2: Retrieve brightness value from display ID-02; this command is valid, and the brightenss value is 80.
Send packet from computer
Byte
0
1
2
3
4
5
6
7
8
Name
Length
(1 byte)
ID
(2 bytes)
Cmd
Type
(1 byte)
Cmd
Code
(1 byte)
Value (>= 3 bytes)
CR
(1 byte)
Byte1
Byte2
Byte3
Hex
0x38
0x30
0x32
0x73
0x24
0x30
0x37
0x36
0x0D
Return packet from display to computer
Byte
0
1
2
3
4
Name
Length
0x32
Cmd
Type
CR
Hex
0x34
0x30
0x32
0x2B
0x0D
Send packet from computer
Byte
0
1
2
3
4
5
6
7
8
Name
Length
(1 byte)
ID
(2 bytes)
Cmd
Type
(1 byte)
Cmd
Code
(1 byte)
Value (>= 3 bytes)
CR
(1 byte)
Byte1
Byte2
Byte3
Hex
0x38
0x30
0x32
0x67
0x62
0x30
0x30
0x30
0x0D
Return packet from display to computer
Byte
0
1
2
3
4
5
6
7
8
Name
Length
(1 byte)
ID
(2 bytes)
Cmd
Type
(1 byte)
Cmd
Code
(1 byte)
Value (>= 3 bytes)
CR
(1 byte)
Byte1
Byte2
Byte3
Hex
0x38
0x30
0x32
0x72
0x62
0x30
0x38
0x30
0x0D