NEC RS-232C user manual bit 4 Friday bit 5 Saturday bit 6 Sunday EX 0-130h, 31h Monday

bit 4: Friday

bit 5: Saturday

bit 6: Sunday

EX.

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

'0'-'4'(30h, 34h): Wednesday

'0'-'F'(30h, 46h): Monday, Tuesday, Wednesday and Thursday

'7'-'F'(37h, 46h): Monday to Sunday

FL: Option

bit 0: 0:once 1:Everyday

bit 1: 0:once 1:Every week

bit 2: 0:Disable 1:Enable

* When bit 0 and bit 1 are '1', it behaves as Everyday.

EX.

'0'-'1'(30h, 31h): Disable, Everyday

'0'-'4'(30h, 34h): Enable, once

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.

Header	Message	Check code	Delimiter
SOH-'0'-'0'-Monitor ID-'B'-'1'-'8'	STX-'C'-'3'-'1'-'4'-ST-PG-ON HOUR-ON MIN-	BCC	CR

OFF HOUR-OFF MIN-INPUT-WD-FL-ETX

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".

'1'-'8'(31h, 38h): Message length

Message

STX (02h): Start of Message

'C'-'3'-'1'-'4' (43h, 33h, 31h, 34h): Schedule writes reply command

ST: Schedule Status command '0'-'0'(30h, 30h): No error '0'-'1'(30h, 31h): Error

PG-ON HOURS-ON MIN-OFF HOURS-OFF MIN-INPUT-WD-FL: Schedule data PG: Program No.

'0'-'0'(30h, 30h): Program No.1

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

ON_HOUR: Turn on time (hour) '0'-'0'(30h, 30h): 00

'1'-'7'(31h, 37h): 23 (=17h)

'1'-'8'(31h, 38h): ON timer isn't set.

ON_MIN: Turn on time (minute) '0'-'0'(30h, 30h): 0

'3'-'B'(33h, 42h): 59

'3'-'C'(33h, 43h): On timer isn’t set.

OFF_HOUR: Turn off time (hour) '0'-'0'(30h, 30h): 00

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