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Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Result code. No error
'0'-'0' (30h, 30h): Operation code page number is 0
'1'-'0' (31h, 30h): Operation code is 10h (in the page 0)
'0'-'0' (30h, 30h): This operation is "Set parameter" type
'0'-'0'-'6'-'4' (30h, 30h, 36h, 34h): Brightness max value is 100(0064h)
'0'-'0'-'3'-'2' (30h, 30h, 33h, 32h): Current Brightness setting is 50(0032h) as 50%
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Step 3. The controller request the monitor to change the Brightness setting
Header
SOH (01h): Start Of Header
'0' (30h): Reserved
'A' (41h): Monitor ID
If the command should be sent to certain monitor only, the either of character ‘A’(41h) to ‘Z’(5Ah)
which is corresponding to monitor ID from No1 to No.26 should be set to this portion. If it is
a broad cast command(only “set command” is available), then the ’*’(2Ah)should be applied.
'0' (30h): Message sender is the controller
'E' (45h): Message Type is "Set parameter command"
'0'-'A' (30h, 41h): Message length is 10 bytes
Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Operation code page number is 0
'1'-'0' (31h, 30h): Operation code is 10h (in the page 0)
'0'-'0'-'5'-'0' (30h, 30h, 35h, 30h): Set Brightness setting 80(0050h) as 80%
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5 “Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
Step 4. The monitor replies with a message for confirmation.
(If command is sent as “Broadcast” then no reply should be sent back.)
Header
SOH (01h): Start Of Header
'0' (30h): Reserved
'0' (30h): Message receiver is the controller
'A' (41h): Monitor ID
This portion should depend on the monitor ID of Monitor.( ’A’(41h)-‘Z’(5Ah))
'F' (46h): Message Type is "Set parameter reply"
'1'-'2' (31h, 32h): Message length is 18 bytes
Header Message
Check
code
Delimiter
SOH-'0'-'A'-'0'-'E'-'0'-'A' STX-'0'-'0'-'1'-'0'-'0'-'0'-'5'-'0'-ETX
BCC
CR
Header Message
Check
code
Delimiter
SOH-'0'-'0'- 'A' -'F'-'1'-'2'
STX-'0'-'0'-'0'-'0'-'1'-'0'—'0'-'0'-'0'
-'0'-'6'-'4'-'0'-'0'-'5'-'0'-ETX
BCC CR
