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12. Serial No. & Model Name Read
12.1 Serial No. Read
This command is used in order to read a serial No.
1) The controller requests the monitor to read a serial No.
Header Message
Check
code
Delimiter
SOH-'0'-'A'-'0'-'A'-'0'-'6' STX-'C'-'2'-'1'-'6'-ETX
BCC
CR
Header
SOH (01h): Start Of Header
'0' (30h): Reserved
'A' (41h): Monit
or 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.
'0' (30h): Message sender is the controller
'A' (41h): Message type is "Command"
'0'-'6'(30h, 36h): Message length.
Message
STX (02h): Start of Message
'C'-'2'-'1'-'6' (43h, 32h, 31h, 36h): Serial No. command
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
2) The monitor replies a data for confirmation.(If command is sent as
“
Broadcast
”
then no reply
should be sent back.).
Header Message
Check
code
Delimiter
SOH-'0'-'0'-'A'-'B'-N-N STX-'C'-'3'-'1'-'6'-
Data(0)-Data(1)---Data(n)-ETX
BCC CR
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)).
'B' (42h): Message type is "Command reply "
N-N: Message length.
Note.) The maximum data length that can be written to the monitor at a time is 32bytes.
Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).
Message
STX (02h): Start of Message
'C'-'3'-'1'-'6' (41h, 33h, 31h, 36h): Serial No. reply command
Data(0)-Data(1)----Data(n):Serial Number
The data must be ASCII characters strings.
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
