NEC RS-232C SOH-0-MonitorID-0-A-1-0, STX-C-2-1-D-EN-P1-P2-P3-P4-ETX, SOH-0-0-Monitor ID-B-0-A

1) The controller requests the monitor to set the condition of security lock.

Header	Message	Check	Delimiter
		code
SOH-'0'-MonitorID-'0'-'A'-'1'-'0'	STX-'C'-'2'-'1'-'D'-EN-P1-P2-P3-P4-ETX	BCC	CR

Header

SOH (01h): Start Of Header

'0' (30h): Reserved

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

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

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

'1'-'0'(31h, 30h): Message length

Message

STX (02h): Start of Message

'C'-'2'-'1'-'D' (43h, 32h, 31h, 44h): Security Lock Control command

EN-P1-P2-P3-P4: Lock condition control data EN: Enable /Disable

'0'-'0'(30h, 30h): Disable

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

P1: Security Pass code 1st '0'-'0'(30h, 30h): "0"

'0'-'9'(30h, 39h): "9"

P2: Security Pass code 2nd '0'-'0'(30h, 30h): "0"

'0'-'9'(30h, 39h): "9"

P3: Security Pass code 3rd '0'-'0'(30h, 30h): "0"

'0'-'9'(30h, 39h): "9"

P4: Security Pass code 4th '0'-'0'(30h, 30h): "0"

'0'-'9'(30h, 39h): "9"

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 the result to the controller.

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

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