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Auxiliary Area Section 9-11
Error Information
■ Error Log, Error Code
■ FAL/FALS Error Information
Instruction Processing Error
Flag
A29508 This flag and the Error Flag (ER) will be turned ON when an
instruction processing error has occurred and the PLC
Setup has been set to stop operation for an instruction error.
Read-only
Indirect DM/EM BCD Error
Flag
A29509 This flag and the Access Error Flag (AER) will be turned ON
when an indirect DM/EM BCD error has occurred and the
PLC Setup has been set to stop operation an indirect DM/
EM BCD error.
Read-only
Illegal Access Error Flag A29510 This flag and the Access Error Flag (AER) will be turned ON
when an illegal access error has occurred and the PLC
Setup has been set to stop operation an illegal access error.
Read-only
No END Error Flag A29511 ON when there isn’t an END(001) instruction in each pro-
gram within a task.
Read-only
Task Error Flag A29512 ON when a task error has occurred. The following conditions
will generate a task error.
1) There isn’t an executable cyclic task.
2) There isn’t a program allocated to the task.
Read-only
Differentiation Overflow Error
Flag
A29513 ON when the specified Differentiation Flag Number exceeds
the allowed value.
Read-only
Illegal Instruction Error Flag A29514 ON when a program that cannot be executed has been
stored.
Read-only
UM Overflow Error Flag A29515 ON when the last address in UM (user program memory)
has been exceeded.
Read-only
Program Address Where Pro-
gram Stopped
A298 and
A299
These words contain the 8-digit hexadecimal program
address of the instruction where program execution was
stopped due to a program error.
(A299 contains the leftmost digits.)
Read-only
Name Address Description Access
Error Log Area A100 to
A199
When an error has occurred, the error code, error contents,
and error’s time and date are stored in the Error Log Area.
Read-only
Error Log Pointer A300 When an error occurs, the Error Log Pointer is incremented
by 1 to indicate the location where the next error record will
be recorded as an offset from the beginning of the Error Log
Area (A100).
Read-only
Error Log Pointer Reset Bit A50014 Turn this bit ON to reset the Error Log Pointer (A300) to 00. Read/write
Error Code A400 When a non-fatal error (user-defined FALS(006) or system
error) or a fatal error (user-defined FALS(007) or system
error) occurs, the 4-digit hexadecimal error code is written to
this word.
Read-only
Name Address Description Access
FAL Error Flag
(Non-fatal error)
A40215 ON when a non-fatal error is generated by executing
FAL(006).
Read-only
Executed FAL Number Flags A360 to
A391
The flag corresponding to the specified FAL number will be
turned ON when FAL(006) is executed. Bits A36001 to
A39115 correspond to FAL numbers 001 to 511.
Read-only
FALS Error Flag
(Fatal error)
A40106 ON when a fatal error is generated by the FALS(007)
instruction.
Read-only
FAL/FALS Number for Sys-
tem Error Simulation
(Not supported by CJ1@-
CPU@@ CPU Units.)
A529 Set a dummy FAL/FALS number to use to simulate the sys-
tem error using FAL(006) or FALS(007).
0001 to 01FF hex: FAL/FALS numbers 1 to 511
0000 or 0200 to FFFF hex: No FAL/FALS number for system
error simulation. (No error will be generated.)
Read/write
Name Address Description Access
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