Mitsubishi Melsec-Q Series User Manual page 545

Number Name Meaning
Restore time
SD676
(Year and month)
Restore time (Day
SD677
and time)
Restore time
Backup data
SD678 (Minute and
restration
second)
information
Restore time
SD679 (Year and day of
week)
Program Write (transfer)
SD681 memory write status display
(transfer) status (percentage)
SD682
Program
Write count index
memory write
up to present
SD683
count index
Standard ROM Write (transfer)
SD686 write (transfer) status display (per-
status centage)
SD687
Standard ROM Write count index
write count index up to present
SD688
Backup error Backup error
SD689
factor factor
SD690 Backup status Backup status
*1: The module whose first 5 digits of serial No. is "10102" or later. (Except the Q00UJCPU, Q00UCPU, and Q01UCPU)
Explanation
• Stores the last 2 digits of year and month when data is restored in 2-digit
BCD code.
b15 to b12 b11 to b8 b7 to b4 b3
Year Month
• Stores the day and time when data is restored in 2-digit BCD code.
b15 to b12 b11 to b8 b7 to b4 b3
Day Hour
• Stores the minute and second when data is restored in 2-digit BCD
code.
b15 to b12 b11 to b8 b7 to b4 b3
Minute Second Second
• Stores the first 2 digits of year and day of week when data is restored in
BCD code.
b15 to b12 b11 to b8 b7 to b4 b3
Higher digits of year (0 to 99)
Displays the status of writing (transferring) the program memory (flash
ROM) in percentage. (0 to 100%) "0" is set when the write direction is set.
• Stores the index value for the number of write operations to the program
memory (flash ROM) up to the present in BIN 32-bit value.
When the index value exceeds 100 thousand times, "FLASH ROM
ERROR" (error code: 1610) occurs. (The index value is calculated even
when exceeding 100 thousand times.)
Note) The write count does not equal to the index value.(Since a flash
ROM write life is prolonged by the system, 1 is added to the write count
index when writing is performed twice or so.).
Displays the status of writing (transferring) the standard ROM (flash ROM)
in percentage. (0 to 100%) "0" is set when the write direction is set.
• Stores the index value for the number of write operations to the standard
ROM (flash ROM) up to the present in BIN 32-bit value.
When the index value exceeds 100 thousand times, "FLASH ROM
ERROR" (error code: 1610) occurs. (The index value is calculated even
when exceeding 100 thousand times.)
Note) The write count does not equal to the index value. (Since a flash
ROM write life is prolonged by the system, 1 is added to the write count
index when the total write capacity after the previous count up reaches
about 1M byte.)
Stores the factor of the error that occurred in the backup.
0 : No error
H
100 : Memory card not inserted
H
200 : Size of backup target data exceeded
H
300 : Memory card write inhibit setting
H
400 : Memory card write error
H
500 : Backup target data read error (from program memory)
H
503 : Backup target data read error (from standard RAM)
H
504 : Backup target data read error (from standard ROM)
H
510 : Backup target data read error (from system data)
H
Stores the current backup status.
0 : Before backup start
1 : Backup start prepared
2 : Backup start preparation completed
3 : Backup in execution
4 : Backup completed
FF: Backup error
CHAPTER12 TROUBLESHOOTING
Set by
(When Set)
Example:
to b0
July, 1993
9307
H
Example:
to b0
31st, 10 a.m.
3110
H
Example:
to b0
35 min., 48 sec.
S (Initial)
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
S (At write)
S (At write)
S (At write)
S (At write)
S (Backup error
occurrence)
S (Status
change)
Corres-
ponding
Corresponding
ACPU
CPU
D9
New
QnU
New
New
New
New
New
*1
QnU
New
12 - 250
1
2
3
12
6
7
8