Mitsubishi Electric Q26UD(E)HCPU User Manual page 548

Number Name Meaning
Status of
latch data
SD671 Status display
backup
function
Backup time
SD672 (Year and
month)
Backup time
SD673 (Day and
hour)
Backup
Backup time
information
SD674 (Minute and
second)
Backup time
SD675 (Year and day
of week)
546
Explanation
This register stores the execution status of latch data backup
in the following bit pattern.
Presence/
Status absence of
backup data
0 No backup data Absent
Restore ready
1
completion
Restore execution
2
*1
completion
Present
*2
3 Backup execution wait
Restore repeated
4
execution ready
completion
*1 Indicates status immediately after restoration.
*2 Indicates status after the CPU module is powered off
and then on while the CPU module is in the "2: Restore
execution completion" status.
This register stores the year (last two digits) and the month
when data were backed up in 2-digit BCD.
b15 to b12 b11 to b8 b7 to b4 b3
Year
Month
This register stores the day and the hour when data were
backed up in 2-digit BCD.
b15 to b12 b11 to b8 b7 to b4 b3
Day Hour
This register stores the minute and the second when data
were backed up in 2-digit BCD.
b15 to b12 b11 to b8 b7 to b4 b3
Minute Second Second
This register stores the year (first two digits) and the day of
the week when data were backed up in BCD.
b15 to b12 b11 to b8 b7 to b4 b3
Higher digits of year (0 to 99)
Set by
(When Set)
Restoration at turning
ON power supply in and
after the next time
Restoring not executed
Restoring executed in
the next time power
supply is turned ON
S (Status
Restoring not executed
change)
Restoring not executed
Restoring executed
whenever power supply
is turned ON
Example:
to b0
July, 1993
9307
H
Example:
to b0
31st, 10 a.m.
3110
H
S (At write)
Example:
to b0
35 min., 48 sec.
3548
H
to b0
Example:
1993, Friday
1905
H
Day of the week
0
Sunday
1
Monday
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
Corresponding
Corresponding
ACPU
CPU
D9
QnU
New
LCPU
QnU
New
LCPU