Mitsubishi Q series Programming Manual page 70

4 SFC PROGRAM CONFIGURATION
(6) Parallel transition operation flowchart
Initial step
Transition
condition "a"
Step 1
Transition
condition "b"
Step 2 Step 3
Transition Transition
condition "c" condition "d"
Waiting Waiting
step step
Transition
condition "f"
Step 5
Transition
condition "g"
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Initial step operation output
Step 4
Transition
condition "e"
Initial step operation output
Waiting
step
Step 1 operation output
Step 1 operation output
Step 2 operation output
Parallel processing
Step 2 operation output
Waiting step executed.
NO
Step 5 operation output
Step 5 operation output
Operation status
executed.
NO
Transition condition
"a" satisfied?
YES
1
deactivated.
executed.
NO
Transition condition
"b" satisfied?
YES 1
deactivated.
Step 3 operation output
executed.
NO
Transition condition Transition condition
"c" satisfied?
1
YES
Step 3 operation output
deactivated.
Waiting step executed.
All waiting steps
executed?
YES
NO
Transition condition
"f" satisfied?
YES
executed.
NO
Transition condition
"g" satisfied?
YES
1
deactivated.
Step 4 operation output
executed. executed.
NO
Transition condition
"d" satisfied? "e" satisfied?
1
YES
Step 4 operation output
deactivated. deactivated.
Waiting step executed.
END step executed,
operation completed.
1 For steps with attribute designations,
processing occurs in accordance with
the attributes.
MELSEC-Q
NO
1
YES
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