Mitsubishi QCPU (Q Mode), Руководство пользователя

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MELSEC-Q
7 FUNCTION
7.5 Clock Function
(1) What is Clock Function?
(a) Clock function reads the clock data inside the High Performance model
QCPU with a sequence program and uses the data for clock management.
Also, the time data is used for time maintenance for the High Performance
model QCPU system functions such as those for failure history.
The clock operations are maintained using the battery (Q6BAT) even when
the PLC power is off or when a momentary power failure for longer than the
permitted time occurs.
(b) Clock Data
The following table lists the time data, that are used for the High
Performance model QCPU clock element.
Data Name Contents
Year Four digits in AD (Countable from 1980 to 2079)
Month 1 to 12
Day 1 to 31(Automatic leap year calculation)
Hour 0 to 23 (24 hours)
Minute 0 to 59
Second 0 to 59
0 Sunday
1 Monday
2 Tuesday
3 Wednesday
4 Thursday
5 Friday
Day of the week
6 Saturday
(2) Writing/Reading Time Data To/From Clock Element
(a) The following two methods can be used to write to the time data clock
element.
1) Method to write from GX Developer
The time data is written to the clock element by displaying "Online"
"Set time" window.