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Auxiliary Area Allocations by Function Appendix C
Clock
Clock Information
Note The clock data is stored in the CPU Unit as BCD.
Operation Start and End Times
Option Board Error Flag A315.13 ON when the Option Board is removed while the power is
being supplied.
CPU Unit operation will continue and the ERR/ALM indi-
cator will flash.
OFF when the error has been cleared.
Read-only When an error
occurs
Flash Memory Error Flag A315.15 ON when writing to the internal flash memory fails.
CPU Unit operation will continue and the ERR/ALM indi-
cator will flash.
OFF when the error has been cleared.
Read-only When an error
occurs
Other Fatal Error Flag A402.00 ON when a non-fatal error that is not defined for A402.01
to A402.15 occurs. Detailed information is output to the
bits of A314.
OFF: No other fatal error
ON: Other fatal error
Read-only When an error
occurs
Name Address Description Access Updated
Clock Data The clock data from the clock built into the CPU Unit is stored here in BCD. Read-only
A351.00 to A351.07 Seconds: 00 to 59 (BCD)
A351.08 to A351.15 Minutes: 00 to 59 (BCD)
A352.00 to A352.07 Hour: 00 to 23 (BCD)
A352.08 to A352.15 Day of the month: 01 to 31 (BCD)
A353.00 to A353.07 Month: 01 to 12 (BCD)
A353.08 to A353.15 Year: 00 to 99 (BCD)
A354.00 to A354.07 Day of the week: 00: Sunday, 01: Monday, 02: Tuesday,
03: Wednesday, 04: Thursday, 05: Friday, 06: Saturday
Name Address Description Access Updated
Operation Start Time A515 to
A517
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 The previous start time is stored after turning ON
the power supply until operation is started.
Read/write
Operation End Time A518 to
A520
The time that operation stopped as a result of changing
the operating mode to PROGRAM mode is stored here in
BCD.
A518.00 to A518.07: Seconds (00 to 59)
A518.08 to A518.15: Minutes (01 to 59)
A519.00 to A519.07: Hour (00 to 23)
A519.08 to A519.15: Day of month (01 to 31)
A520.00 to A520.07: Month (01 to 12)
A520.08 to A520.15: Year (00 to 99)
Note If an error occurs in operation, the time of the
error will be stored. If the operating mode is then
changed to PROGRAM mode, the time that PRO-
GRAM mode was entered will be stored.
Read/write
Name Address Description Access Updated
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