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4. A2CCPU
MELSEC-A
~
A2C Operation
Sequence Program
Data Memory
Processing
External Output
A2C State
<,
Operation
(M, l, S, T, C, D)
RUN
~
STOP
Stopped
Output status is saved
by
the
as
Status at the time of STOP
is
and all outputs switched off.
retained.
STOP
~
RUN
Started
Depends on the STOP .. RUN
Operation is resumed in the status
output mode set in the parameter.
at the tima of STOP.
RUN
~
PAUSE
Stoppad
Output status is retained.
Status at the time of PAUSE is
retained.
PAUSE
~
RUN
Started
Operation resumes In the PAUSE
Operation resumes in the status at
output status.
the time of PAUSE.
(4) The relationship between the A2CCPU operation state and operation
processing is indicated in Table 4.3.
I
Table 4.3 A2C Operation Processing
(5) Processing while sequence program operation processing is stopped
is indicated in Table 4.4.
Table 4.4 Processing During Program Operation Stop
Processing
Timer!
Constant
Counter
Scan
CPU Error
Present
Processing
Link
Sampling
Operation
I/O Refresh
Check
Value and
(with
Refresh
Trace
State Check
Contact
constant
Processing
Processing
Statu.
scan set)
A2C State
Update
RUN (END
Executed
Executed
Executed
Executed
Enable
Executed
Executed
processing)
STOP
Executed
Executed
-
-
Enable
-
Executed
PAUSE
Executed
Executed
-
-
Enable
-
Executed
4-17

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