Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 549

Auxiliary Area Allocations
Address Name
Words Bits
A272 A27215 Online
Addition
Failed Flag
A273 --- Online
Addition
Failure
Cause
Flags
A27300
A27301
A27302
A27303
A27304
A27305
A27306
A27307
A27308
A27309
A294 All Task Num-
ber when
Program
Stopped
A295 A29508 Instruc-
tion Pro-
cessing
Error Flag
A29509 Indirect
DM/EM
BCD Error
Flag
Function
ON: An error occurred that pre-
vented a Backplane and Unit from
being added online.
When an error occurred that pre-
vented a Backplane and Unit from
being added online, the relevant flag
will be turned ON.
Transmitted I/O tables are invalid
(changed or deleted).
Basic I/O Unit mounted in an invalid
slot.
No Unit mounted in the added slot.
Specified an Expansion Backplane
addition to an earlier CPU Back-
plane version.
A CPU Bus Unit was added.
The added Unit's model is different
from the Unit that was specified to
be mounted.
The added Basic I/O Unit's allocated
words duplicate the words of an
existing Unit.
The added unit number duplicates
an existing unit number.
The number of I/O points exceeds
the maximum (5,120 I/O points).
There is an error in the added
Expansion Backplane (power supply
OFF).
This word contains the task number
of the task that was being executed
when program execution was
stopped because of a program error.
(A298 and A299 contain the pro-
gram address where program exe-
cution was stopped.)
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.
CPU Unit operation will stop and the
ERR/ALM indicator will light when
this flag goes ON.
(The task number where the error
occurred will be stored in A294 and
the program address will be stored
in A298 and A299.)
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 indi-
rect DM/EM BCD error. (This error
occurs when the content of an indi-
rectly addressed DM or EM word is
not BCD although BCD mode has
been selected.) CPU Unit operation
will stop and the ERR/ALM indicator
will light when this flag goes ON.
(The task number where the error
occurred will be stored in A294 and
the program address will be stored
in A298 and A299.)
Settings Status
after
mode
change
OFF ON: Cleared
An error pre-
vented a Back-
plane or Unit
from being
added online.
OFF ON: Cleared
The correspond-
ing error pre-
vented a
Backplane or
Unit from being
added online.
Normal tasks: Cleared
0000 to 001F
(task 0 to 31)
ON: Error Flag Cleared
ON
OFF: Error Flag
OFF
ON: Not BCD Cleared
OFF: Normal
Appendix B
Status at Timing Related
startup flags,
settings
Cleared Each ---
cycle
Cleared Each ---
cycle
Cleared --- A298/
A299
Cleared --- A294,
A298/
A299
PLC
Setup
(Opera-
tion
when in-
struction
error has
oc-
curred)
Cleared --- A294,
A298/
A299
PLC
Setup
(Opera-
tion
when in-
struction
error has
oc-
curred)
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