Omron CP1L-EL20DR-D, Operation Manual

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718
Auxiliary Area Allocations by Address Appendix D
A401 11 Too Many I/O
Points Flag
(fatal error) ON when the number of Expansion
Units and Expansion I/O Units
exceeds the limit, when the number
of words allocated to these Units
exceeds the limit, are mounted.
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. ON: Error
OFF: No error Cleared Cleared Refreshed
when error
occurs. A407
14 I/O Bus Error
Flag
(fatal error) ON in the following cases:
• When an error occurs in a data
transfer between the CPU Unit
and a Expansion Unit or Expan-
sion I/O Unit. If this happens,
0A0A hex will be output to A404.
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.)
ON: Error
OFF: No error Cleared Cleared Refreshed
when error
occurs. A404
15 Memory Error
Flag
(fatal error) ON when an error occurred in mem-
ory or there was an error in auto-
matic transfer from the Memory
Cassette when the power was turned
ON.
CPU Unit operation will stop and the
ERR/ALM indicator on the front of
the CPU Unit will light.
The location where the error
occurred is indicated in A403.00 to
A403.08, and A403.09 will be turned
ON if there was an error during auto-
matic transfer at startup.
This flag will be turned OFF when
the error is cleared. (The automatic
transfer at startup error cannot be
cleared without turning OFF the
PLC.) ON: Error
OFF: No error Cleared Cleared Refreshed
when error
occurs. A403.00
to
A403.08,
A403.09,
A403.11,
A403.12
A402 00 Other Fatal
Error Flag ON when a non-fatal error that is not
defined for A402.01 to A402.15
occurs. Detailed information is output
to the bits of A315.
There are no errors that affect this
flag at this time. This flag is reserved
by the system. OFF: No
other fatal
error
ON: Other
fatal error Cleared Cleared Refreshed
when error
occurs. A315
04 Battery Error
Flag
(non-fatal
error) ON if the CPU Unit’s battery is dis-
connected or its voltage is low and
the Detect Battery Error setting has
been set in the PLC Setup.
The CPU Unit will continue operating
and the ERR/ALM indicator on the
front of the CPU Unit will flash.
This flag can be used to control an
external warning light or other indica-
tor to indicate that the battery needs
to be replaced.
(This flag will be turned OFF when
the error is cleared.) ON: Error
OFF: No error Cleared Cleared Refreshed
when error
occurs. PLC
Setup
(Detect
Battery
Error)
10 PLC Setup
Error Flag
(non-fatal
error) ON when there is a setting error in
the PLC Setup. The CPU Unit will
continue operating and the ERR/
ALM indicator on the front of the
CPU Unit will flash. The location of
the error will be written to A406.
(This flag will be turned OFF when
the error is cleared.) ON: Error
OFF: No error Cleared Cleared Refreshed
when error
occurs. A406
Address Name Function Settings Status
after
mode
change
Status
at star-
tup
Write
timing
Related
flags, set-
tings
Words Bits