Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 563

Auxiliary Area Allocations
Address Name
Words Bits
A401 A40106 FALS
Error Flag
(Error
causing
switch to
simplex
operation)
A40108 Cycle
Time
Overrun
Flag
(Error
causing
switch to
simplex
operation)
A40109 Program
Error Flag
(Error
causing
switch to
simplex
operation)
A40110 I/O Set-
ting Error
Flag
(Fatal
error)
Function
ON when a non-fatal error is gener-
ated by the FALS(006) instruction.
The ERR/ALM indicator will flash.
The corresponding error code will be
written to A400. Error codes C101 to
C2FF correspond to FALS numbers
001 to 511.
With a Single CPU System, CPU
Unit operation will stop. With a
Duplex CPU System in Duplex
Mode, operation will switch to the
standby CPU Unit and operation will
continue. With a Duplex CPU Sys-
tem in Simplex Mode, CPU Unit
operation will stop.
This flag will be turned OFF when
the FALS errors are cleared.
ON if the cycle time exceeds the
maximum cycle time set in the PLC
Setup (the cycle time monitoring
time). The ERR/ALM indicator will
light.
With a Single CPU System, CPU
Unit operation will stop. With a
Duplex CPU System in Duplex
Mode, operation will switch to the
standby CPU Unit and operation will
continue. With a Duplex CPU Sys-
tem in Simplex Mode, CPU Unit
operation will stop.
This flag will be turned OFF when
the error is cleared.
ON when program contents are
incorrect. The ERR/ALM indicator
will light.
The task number where the error
occurred will be stored in A294 and
the program address will be stored
in A298 and A299.
The type of program error that
occurred will be stored in bits 8 to 15
of A295. Refer to the description of
A295 or to 2-3 Checking Programs
of CS/CJ Series Programmable
Controllers (W394) for more details
on program errors.
With a Single CPU System, CPU
Unit operation will stop. With a
Duplex CPU System in Duplex
Mode, operation will switch to the
standby CPU Unit and operation will
continue. With a Duplex CPU Sys-
tem in Simplex Mode, CPU Unit
operation will stop.
This flag will be turned OFF when
the error is cleared.
ON when an Input Unit has been
installed in an Output Unit's slot or
vice versa, so the Input and Output
Units clash in the registered I/O
table.
CPU Unit operation will stop and the
ERR/ALM indicator on the front of
the CPU Unit will light.
This flag will be turned OFF when
the error is cleared.
Settings Status
after
mode
change
ON: FALS(006) Cleared
executed
OFF: FALS(006)
not executed
ON: Cycle time Cleared
over max.
OFF: Cycle time
under max.
ON: Error Cleared
OFF: No error
ON: Error Cleared
OFF: No error
Appendix B
Status at Timing Related
startup flags,
settings
Cleared When A400
error
occurs
Cleared When PLC
cycle time Setup
exceeds (Cycle
max. time
monitor-
ing time)
Cleared --- A294,
A295,
A298
and
A299
Cleared --- ---
527