Omron CJ2 User Manual page 326

Appendices
Error Error flag
Error code (Auxiliary
(inA400)
Program Error 0x80F0 A401.09: Pro-
gram Error Flag
A-96
Flag and
word data
Area)
A294 to A299: The program is incorrect. See the fol-
Program Error lowing rows of this table for details.
Information The address at which the program
stopped will be output to A298 and
A299.
A295.11: No END error
A295.15: UM overflow error
The last address in UM (user pro-
gram memory) has been exceeded.
A295.13: Differentiation overflow
error Too many differentiated instruc-
tions have been inserted or deleted
during online editing.
A295.12: Task error
A task error has occurred. The follow-
ing conditions will generate a task
error.
1. There is no executable cyclic
task.
2. There is no task that corre-
sponds to the interrupt that was
input. (Only when the Stop CPU
on Instruction Error parameter in
the PLC Setup is set to Stop.)
A295.10: Illegal access error
An illegal access error has occurred
and the PLC Setup has been set to
stop operation for an instruction error.
The following are illegal access
errors:
1. Reading/writing a parameter
area.
2. Writing memory that is not
installed.
3. Writing an EM bank that is EM
file memory.
4. Writing to a read-only area.
5. Indirect DM/EM address that is
not in BCD when BCD mode is
specified.
A295.09: Indirect DM/EM BCD error
An indirect DM/EM BCD error has
occurred and the PLC Setup has
been set to stop operation for an
instruction error.
A295.08: Instruction error
An instruction processing error has
occurred and the PLC Setup has
been set to stop operation for an
instruction error.
A295.14: Illegal instruction error
The program contains an instruction
that cannot be executed.
Probable cause
Check A295 to determine the type of error that
occurred and check A298/A299 to find the program
address where the error occurred. Correct the pro-
gram and then clear the error.
Be sure that there is an END(001) instruction at the
end of the task specified in A294 (program stop task
number).
Transfer the program again.
Return to PROGRAM mode and transfer the pro-
gram again.
Check the startup cyclic task attributes. Check the
execution status of each task as controlled by
TKON(820) and TKOF(821).Make sure that all of the
task numbers specified in TKON(820), TKOF(821),
and MSKS(690) instructions have corresponding
tasks. Use MSKS(690) to mask any I/O or sched-
uled interrupt tasks that are not being used and that
do not have programs set for them.
Find the program address where the error occurred
(A298/A299) and correct the instruction.
Find the program address where the error occurred
(A298/A299) and correct the indirect addressing or
change to binary mode.
Find the program address where the error occurred
(A298/A299) and correct the instruction.
Retransfer the program to the CPU Unit.
CJ2 CPU Unit Hardware User's Manual
Possible remedy