NEC RS-232C manual Header Message Check code Delimiter

Header	Message	Check code	Delimiter
SOH-'0'-Monitor ID-'0'-'A'-'0'-'4'	STX-'0-'C'-ETX	BCC	CR

Header

SOH (01h): Start Of Header

'0' (30h): Reserved

Monitor ID: Specify the Monitor ID which you want to store the setting. Ex.) If Monitor ID is '1', specify 'A'.

'0' (30h): Message sender is the controller.

'A' (41h): Message type is "Command".

'0'-'4' (30h, 34h): Message length is 4 bytes.

Message

STX (02h): Start of Message

'0'-'C' (30h, 43h): Command code is 0Ch as "Save current settings".

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

(22/72)