598
Auxiliary Area Appendix C
A099 A09900 UM Read Pro-
tection Status
Indicates whether the entire user program in the PLC
is read-protected.
0: UM not read-protected.
1: UM read-protected.
Retained Retained When protection is set
or cleared
CPU Unit with unit ver-
sion 2 or later
A09901 Task Read
Protection
Status
Indicates whether read protection is set for individual
tasks.
0: Tasks not read-protected.
1: Tasks read-protected.
Retained Retained When protection is set
or cleared
CPU Unit with unit ver-
sion 2 or later
A09902 Program Write
Protection
Status when
Read Protec-
tion Is Set
Indicates whether the program is write-protected.
0: Write-enabled.
1: Write-protected.
Retained Retained When protection is set
or cleared
CPU Unit with unit ver-
sion 2 or later
A09903 Enable/Dis-
able Status for
Backing Up
the Program
to a Memory
Card
Indicates whether creating a backup program file
(.OBJ) is enabled or disabled.
0: Enabled.
1: Disabled.
Retained Retained When protection is set
or cleared
CPU Unit with unit ver-
sion 2 or later
A09914 IR/DR Opera-
tion between
Tasks
Turn ON this bit to share index and data registers
between all tasks. Turn OFF this bit to use separate
index and data registers between in each task.
0: Independent
1: Shared (default)
Retained Retained Not supported by
CJ1@-CPU@@ CPU
Units
A09915 Timer/Counter
PV Refresh
Mode Flag
Indicates whether the CPU Unit is operating in BCD
mode or binary mode.
0: BCD mode
1: Binary mode
Retained Retained Not supported by
CJ1@-CPU@@ CPU
Units
A100 to
A199
All Error Log
Area
When an error has occurred, the error code, error
contents, and error’s time and date are stored in the
Error Log Area. Information on the 20 most recent
errors can be stored.
Each error record occupies 5 words; the function of
these 5 words is as follows:
1) Error code (bits 0 to 15)
2) Error contents (bits 0 to 15)
Error contents:
Address of Aux. Area word with details or 0000.
3) Minutes (bits 8 to 15), Seconds (bits 0 to 7)
Seconds: 00 to 59, BCD
Minutes: 00 to 59, BCD
4) Day of month (bits 8 to 15), Hours (bits 0 to 7)
Hours: 00 to 23, BCD
Day of month: 01 to 31, BCD
5) Year (bits 8 to 15),
Month (bits 0 to 7)
Year: 00 to 99, BCD
Month: 00 to 12, BCD
Errors generated by FAL(006) and FALS(007) will
also be stored in this Error Log.
The Error Log Area can be reset from a Program-
ming Device.
If the Error Log Area is full (20 records) and another
error occurs, the oldest record in A100 to A104 will
be cleared, the other 19 records are shifted down,
and the new record is stored in A195 to A199.
Retained Retained Refreshed when error
occurs.
A50014
A300
A400
Address Name Function Status
after
mode
change
Status
at star-
tup
Write timing/
Related flags,
settings
Words Bits
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