Mitsubishi MELSEC Q Series User Manual

4
FUNCTIONS
4.8 Clock Function
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OVERVIEW
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SYSTEM CONFIGURATION
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SPECIFICATIONS
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FUNCTIONS
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SETTING AND PROCEDURES
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I/O NUMBER ASSIGNMENT
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INSTALLING / UNINSTALLING
4.8 Clock Function
(1) What is clock function?
The clock function allows reading of the clock data in the C Controller module by a
user program to use them for time control.
The clock data are mainly used for the time control of the functions performed by the
C Controller module system, such as date and time data saving into the event history.
(2) Clock operation at power-off and momentary stop
Even if the C Controller module is powered off or failed for longer than the permissible
momentary stop time, the clock is kept operated by the battery in the C Controller
module.
(3) Clock data
The following clock data are used in the C Controller module.
Table4.19 Clock data details
Data name Description
Year 4 digits (Available from 2000 to 2099)
Month 1 to 12
Day 1 to 31 (Automatic leap year detection)
Hour 0 to 23 (24-hour system)
Minute 0 to 59
Second 0 to 59
Day of week
0 Sunday
1 Monday
2 Tuesday
3 Wednesday
4Thursday
5Friday
6 Saturday

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English