A-71
Appendices
CP1E CPU Unit Software User’s Manual(W480)
A-2 Auxiliary Area Allocations by Address
App
A-2-2 Read/Write Words
A512
to
A513
(CP1E
N/NA-
type
CPU
Unit
only)
− Power Interruption
Time
These words contain the time at which
the power was interrupted. The con-
tents are updated every time that the
power is interrupted. The data is
stored in BCD.
A512.00 to A512.07: Second (00 to
59)
A512.08 to A512.15: Minute (00 to 59)
A513.00 to A513.07: Hour (00 to 23)
A513.08 to A513.15: Day of month (01
to 31)
Note 1 These words are not cleared
at startup.
2 The data will be unstable if the
capacitor becomes
discharged.
3 In an E-type CPU Unit, or if
the clock data is not set for an
N/NA-type CPU Unit, the data
will be for 1:01.01 on Sunday
January 1, 2001.
See Function col-
umn.
Retained Retained Written at
power
interruption.
A514 − Number of Power
Interruptions
Contains the number of times that
power has been interrupted since the
power was first turned ON. The data is
stored in binary. To reset this value,
overwrite the current value with 0000.
Note The data will be unstable if the
capacitor becomes discharged.
0000 to FFFF hex Retained Retained Refreshed
when power is
turned ON.
A515
to
A517
(CP1E
N/NA-
type
CPU
Unit
only)
− Operation Start Time The time that operation started as a
result of changing the operating mode
to RUN or MONITOR mode is stored
here in BCD.
A515.00 to A515.07: Seconds (00 to
59)
A515.08 to A515.15: Minutes (00 to
59)
A516.00 to A516.07: Hour (00 to 23)
A516.08 to A516.15: Day of month (01
to 31)
A517.00 to A517.07: Month (01 to 12)
A517.08 to A517.15: Year (00 to 99)
Note 1 The previous start time is
stored after turning ON the
power supply until operation is
started.
2 The data will be unstable if the
capacitor becomes
discharged.
3 In an E-type CPU Unit, or if
the clock data is not set for an
N/NA-type CPU Unit, the data
will be for 1:01.01 on Sunday
January 1, 2001.
See at left. Retained Retained See at left.
Address
Name Function Settings
Status
after
mode
change
Status at
startup
Write
timing
Related
flags,
settings
Words Bits
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