NEC RS-232C manual STX-C-3-1-D-ST-EN-ETX

Header		Message	Check code	Delimiter
SOH-'0'-'0'-Monitor ID-'B'-'0'-'A'		STX-'C'-'3'-'1'-'D'-ST-EN-ETX	BCC	CR
Header
SOH (01h): Start of Header
'0' (30h): Reserved
'0' (30h): Message receiver is the controller.
Monitor ID: Indicate a replying Monitor ID.
Ex.)	When this byte is set to 'A', the replying Monitor ID is '1'.
'B' (42h): Message type is "Command reply".
'0'-'A'(30h, 41h): Message length
Message
STX (02h): Start of Message
'C'-'3'-'1'-'D'	(43h, 33h, 31h, 44h): Security Lock Control reply command

ST-EN: Lock condition result data ST: Status

'0'-'0'(30h, 30h): No error

'0'-'1'(30h, 31h): Error

EN: Enable /Disable (Current condition) '0'-'0'(30h, 30h): Disable '0'-'1'(30h, 31h): Enable

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

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