Omron CP1L Operation Manual page 679

Auxiliary Area Allocations by Address
Address Name
Words Bits
A401 A401.11 Too Many I/O
Points Flag
(fatal error)
A401.14 I/O Bus Error
Flag
(fatal error)
A401.15 Memory Error
Flag
(fatal error)
A402 A402.00 Other Fatal
Error Flag
A402.04 Battery Error
Flag
(non-fatal
error)
A402.10 PLC Setup
Error Flag
(non-fatal
error)
Function
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 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 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 when a non-fatal error that is not
defined for A402.01 to A402.15
occurs. Detailed information is output
to the bits of A314.
There are no errors that affect this
flag at this time. This flag is reserved
by the system.
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 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.)
Settings Status
after
mode
change
ON: Error Cleared
OFF: No error
ON: Error Cleared
OFF: No error
ON: Error Cleared
OFF: No error
OFF: No Cleared
other fatal
error
ON: Other
fatal error
ON: Error Cleared
OFF: No error
ON: Error Cleared
OFF: No error
Appendix D
Status Write Related
at star- timing flags, set-
tup tings
Cleared Refreshed A407
when error
occurs.
Cleared Refreshed A404
when error
occurs.
Cleared Refreshed A403.00
when error to
occurs. A403.08,
A403.09
Cleared Refreshed A315
when error
occurs.
Cleared Refreshed PLC
when error Setup
occurs. (Detect
Battery
Error)
Cleared Refreshed A406
when error
occurs.
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