Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 436

Error Processing
Error Program- Error
ming flags in
Console Auxiliary
display Area
Program PRO- A40109:
GRAM Program
error
ERR Error Flag
Cycle CYCLE A40108:
Time TIME ERR Cycle
Overrun Time
error Overrun
Flag
System SYS FAIL A40106:
FALS FALS FALS
error Error Flag
400
Error Flags Probable cause
code (in and
A400) word
data
A294 to A29514: Illegal instruction
80F0
error
A299:
Program The program contains an
instruction that cannot be exe-
error
cuted.
informa-
tion
A29515: UM overflow error
The last address in UM (user
program memory) has been
exceeded.
809F --- The cycle time has exceeded
the maximum cycle time
(watch cycle time) set in the
PLC Setup.
C101 to --- FALS(007) has been executed
C2FF in the program.
The error code in A400 will
indicate the FAL number. The
leftmost digit of the code will
be C and the rightmost 3 digits
of the code will be from 100 to
2FF hex and will correspond to
FAL numbers 001 to 511.
Section 10-2
Possible remedy
If the error has occurred in both the active
and standby CPU Units, retransfer the pro-
gram to the CPU Unit.
If the error has occurred in both the active
and standby CPU Units, use a Programming
Device to transfer the program again.
If the error has occurred in both the active
and standby CPU Units, change the pro-
gram to reduce the cycle time or change the
maximum cycle time setting.
The cycle time can be reduced by dividing
unused parts of the program into tasks,
jumping unused instructions in tasks, and
disabling cyclic refreshing of Special I/O
Units that don't require frequent refreshing.
If the error occurred in only one of the CPU
Units, use one of the following methods.
• Toggle the USE/NO USE switch for the
CPU Unit with the error to NO USE and
back to USE and then press the initializa-
tion button.
• If the automatic recovery setting has been
enabled in the PLC Setup, use the auto-
matic recovery function to restart.
• If operation still cannot be recovered,
replace the CPU Unit.
If the error has occurred in both the active
and standby CPU Units, correct according
to cause indicated by the FAL number (set
by user).
If the error occurred in only one of the CPU
Units, use one of the following methods.
• Toggle the USE/NO USE switch for the
CPU Unit with the error to NO USE and
back to USE and then press the initializa-
tion button.
• If the automatic recovery setting has been
enabled in the PLC Setup, use the auto-
matic recovery function to restart.
• If operation still cannot be recovered,
replace the CPU Unit.