Omron CP1L CPU UNIT - 03-2009, Operation Manual

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Auxiliary Area Allocations by Address Appendix D
A274 A274.00 High-speed
Counter 0
Range 1 Com-
parison Condi-
tion Met Flag
These flags indicate whether the PV
is within the specified ranges when
high-speed counter 0 is being oper-
ated in range-comparison mode.
Cleared at beginning of operation.
Cleared when range comparison
table is registered.
OFF: PV not in range
ON: PV in range --- --- Cleared Refreshed
each cycle
during
oversee
process.
Refreshed
when
PRV(881)
instruction
is exe-
cuted. ---
A274.01 High-speed
Counter 0
Range 2 Com-
parison Condi-
tion Met Flag
A274.02 High-speed
Counter 0
Range 3 Com-
parison Condi-
tion Met Flag
A274.03 High-speed
Counter 0
Range 4 Com-
parison Condi-
tion Met Flag
A274.04 High-speed
Counter 0
Range 5 Com-
parison Condi-
tion Met Flag
A274.05 High-speed
Counter 0
Range 6 Com-
parison Condi-
tion Met Flag
A274.06 High-speed
Counter 0
Range 7 Com-
parison Condi-
tion Met Flag
A274.07 High-speed
Counter 0
Range 8 Com-
parison Condi-
tion Met Flag
A274 A274.08 High-speed
Counter 0
Comparison
In-progress
Flag
This flag indicates whether a com-
parison operation is being executed
for high-speed counter 0.
Cleared at beginning of operation.
OFF: Stopped.
ON: Being executed. --- --- Cleared Refreshed
when com-
parison
operation
starts or
stops. ---
A274.09 High-speed
Counter 0
Overflow/
Underflow
Flag
This flag indicates when an overflow
or underflow has occurred in the
high-speed counter 0 PV. (Used with
the linear mode counting range only.)
Cleared when operation starts.
Cleared when PV is changed.
OFF: Normal
ON: Overflow or underflow --- --- Cleared Refreshed
when an
overflow or
underflow
occurs. ---
A274.10 High-speed
Counter 0
Count Direc-
tion
This flag indicates whether the high-
speed counter is currently being
incremented or decremented. The
counter PV for the current cycle is
compared with the PLC in last cycle
to determine the direction.
OFF: Decrementing
ON: Incrementing --- --- Cleared Setting
used for
high-speed
counter,
valid dur-
ing counter
operation. Read only
Address Name Function Settings Status
after
mode
change
Status
at star-
tup
Write
timing
Related
flags, set-
tings
Words Bits