Clock Function - Mitsubishi Electric MELSEC iQ-F Series Training Manual

CLOCK FUNCTION

The CPU module has an internal clock and is used to manage time in functions performed by the system such as dates of
the event history function and the data logging function. Time operation continues with the large internal capacitor in the
CPU module even though the power in the CPU module is turned OFF or the power failure exceeds the allowable
momentary power failure time. If an optional battery is used, operation continues by the battery.
Setting the clock of the CPU module
2.
Enter!
3.
Click!
The clock data handled in the CPU unit is described below.
Special register
Data name
Year SD210
Month SD211
Day SD212
Hour SD213
Minute SD214
Second
SD215
Day-of-the-week SD216
1.
Click!
4.
Click!
Name
Description
Clock Data (Year) 4 digits in calendar year (1980 to 2079)
Clock Data (Month)
1 to 12
Clock Data (Day)
1 to 31 (Leap year auto detect)
Clock Data (Hour)
0 to 23 (24-hour system)
Clock Data (Minute)
0 to 59
Clock Data (Second)
0 to 59
Clock Data (Day Week)
0: Sunday, 1: Monday, 2: Tuesday, 3: Wednesday, 4: Thursday, 5: Friday, 6: Saturday
24
1.
Click [Online] → [Set Clock] from the menu to
display the "Set Clock" dialog box.
2.
Set a year, month, day, hour, minute, second,
and day of week on the "Set Clock" dialog box.
3.
Click the [Execute] button.
4.
Click the [Close] button.