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Self diagnosis – NEC RS-232C User Manual

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PG-EN: Enable/Disable Schedule data

PG: Program No.

'0'-'0'(30h, 30h): Program No.1
|
'0'-'6'(30h, 36h): Program No.7

EN: Enable /Disable

'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


4) The monitor replies a data for confirmation.

Header

Message

Check code

Delimiter

SOH-'0'-'0'-Monitor ID-'B'-'0'-'C'

STX-'C'-'3'-'1'-'5'-ST-PG-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'-'C' (30h, 43h): Message length

Message

STX (02h): Start of Message

'C'-'3'-'1'-'5' (43h, 33h, 31h, 35h): Enable/Disable Schedule writes reply command
ST: Enable/Disable Schedule Status command

'0'-'0'(30h, 30h): No error
'0'-'1'(30h, 31h): Error

PG-EN: Enable/Disable Schedule data

PG: Program No.

'0'-'0'(30h, 30h): Program No.1
|
'0'-'6'(30h, 36h): Program No.7

EN: Enable /Disable

'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



11. Self diagnosis

11.1 Self-diagnosis status read
This command is used in order to read the Self-diagnosis status.


1) The controller requests the monitor to read Self-diagnosis status.

Header

Message

Check code

Delimiter

SOH-'0'-Monitor ID-'0'-'A'-'0'-'4'

STX-'B'-'1'-ETX

BCC

CR


Header