APPX
Appendix 5 List of Special Register Areas
693
A
Latch area
The following is the list of special register areas relating to the latch area.
No. Name Data stored Details Set by (setting
timing)
SD944 CPU module data
backup/restoration
function
Backup function
*1
Backup function setting Set the backup function using the following bit pattern. (Off: Disabled,
On: Enabled)
b0: Automatic backup setting by specification of day and time
b1: Automatic backup setting by specification of time and day of the
week
b5: Upper limit value status for the number of the CPU module
backup data
b10: Retry execution for the automatic backup
b15: Automatic backup setting at occurrence of the CPU stop error
U
SD947 Day and time setting for
automatic backup (day)
Store the day when the automatic backup on the specified day and time
is executed using the BIN code.
• Day (1 to 31)
U
SD948 Day and time setting for
automatic backup (hour)
Store the hour when the automatic backup on the specified day and
time is executed using the BIN code.
•Hour (0 to 23)
U
SD949 Day and time setting for
automatic backup
(minute)
Store the minute when the automatic backup on the specified day and
time is executed using the BIN code.
• Minute (0 to 59)
U
SD950 Time and day of the
week setting for
automatic backup (hour)
Store the hour when the automatic backup on the specified day of the
week and time is executed using the BIN code.
•Hour (0 to 23)
U
SD951 Time and day of the
week setting for
automatic backup
(minute)
Store the minute when the automatic backup on the specified day of the
week and time is executed using the BIN code.
• Minute (0 to 59)
U
SD952 Time and day of the
week setting for
automatic backup (day
of the week)
Set the day of the week when the automatic backup is executed using
the following bit pattern. (Off: Disabled, On: Enabled)
b0: Sunday, b1: Monday, b2: Tuesday, b3: Wednesday, b4: Thursday,
b5: Friday, b6: Saturday
U
SD953 Backup error cause • The cause of an error that occurred during the CPU module data
backup is stored.
0H: No error
Other than 0H: For details on the values stored when an error occurs,
refer to the list of error codes. ( Page 552 List of Error Codes)
• "0" is set at the start of the CPU module data backup.
S (Error)
b15 b1b2b3b4b5b6
b0
0
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