ViewSonic IFP52 Series User Manual page 99

Example 1: Set Brightness as 76 for Display (#02) and this command is valid
Send (Hex Format)
Name Length
Hex 0x38
Reply (Hex Format)
Name
Hex
Example 2: Set Brightness as 75 for Display (#02) and this command is NOT valid
Send (Hex Format)
Name Length
Hex 0x38
Reply (Hex Format)
Name
Hex
ID Command Type Command Value1 Value2 Value3
0x30
0x73
0x32
Length ID
0x30
0x34
0x32
ID Command Type Command Value1 Value2 Value3
0x30
0x73
0x32
Length ID
0x30
0x34
0x32
0x24 0x30
Command Type
0x2B
0x24 0x30
Command Type
0x2D
99
CR
0x37 0x36 0x0D
CR
0x0D
CR
0x0D
0x37 0x35
CR
0x0D