Omron CP1E CPU UNIT SOFTWARE User Manual page 413

Address
Name
Words Bits
A295 10 Illegal Access Error
Flag
11 No END Error Flag
12 Task Error Flag
13 Differentiation Over-
flow Error Flag
14 Illegal Instruction Error
Flag
15 UM Overflow Error
Flag
A298 Program Address
Where Program
Stopped
(Lower digits)
A299 Program Address
Where Program
Stopped
(Upper digits)
CP1E CPU Unit Software User's Manual(W480)
Function
This flag and the Access Error Flag
(AER) will be turned ON when an ille-
gal access error has occurred and the
PLC Setup has been set to stop opera-
tion an illegal access error. (This error
occurs when a region of memory is
accessed illegally.) CPU Unit opera-
tion will stop and the ERR/ALM indica-
tor will light when this flag goes ON.
The following operations are consid-
ered illegal access:
• Reading/writing the system area
• Indirect DM BCD error (in BCD
mode)
Note The task number where the error
occurred will be stored in A294
and the program address will be
stored in A298 and A299.
ON when there isn't an END instruction
in each program within a task.
CPU Unit operation will stop and the
ERR/ALM indicator will light when this
flag goes ON.
Note The task number where the error
occurred will be stored in A294
and the program address will be
stored in A298 and A299.
ON when a task error has occurred. A
task error will occur when there is no
program allocated to the task.
Note The task number where the error
occurred will be stored in A294
and the program address will be
stored in A298 and A299.
The allowed value for Differentiation
Flags which correspond to differentia-
tion instructions has been exceeded.
CPU Unit operation will stop and the
ERR/ALM indicator will light when this
flag goes ON.
Note The task number where the error
occurred will be stored in A294
and the program address will be
stored in A298 and A299.
ON when a program that cannot be
executed has been stored. CPU Unit
operation will stop and the ERR/ALM
indicator will light when this flag goes
ON.
ON when the last address in UM (User
Memory) has been exceeded. CPU
Unit operation will stop and the
ERR/ALM indicator will light when this
flag goes ON.
These words contain the program
address of the instruction where pro-
gram execution was stopped due to a
program error.
Note A294 contains the task number of
the task where program execu-
tion was stopped.
Status
after
Settings
mode
change
ON: Illegal access Cleared Cleared
occurred
OFF: Normal condi-
tion
ON: No END Cleared Cleared
OFF: Normal condi-
tion
ON: Error Cleared Cleared
OFF: Normal
ON: Error Cleared Cleared
OFF: Normal
ON: Error Cleared Cleared
OFF: Normal
ON: Error Cleared Cleared
OFF: Normal
Lower digits of the Cleared Cleared
program address
Upper digits of the Cleared Cleared
program address
Appendices
Related
Status at Write
flags,
startup timing
settings
When pro- A294,
gram error A298/
occurs. A299
PLC
Setup
(Opera-
tion when
instruc-
tion error
has
occurred)
A294,
A298/
A299
A294,
A298/
A299
A294,
A298/
A299
A294,
A298/
A299
A294,
A298/
A299
A294
A-59