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4 SFC PROGRAM CONFIGURATION
MELSEC-Q
(4) Selection transition operation flowchart
St ep 2 Step 4 St ep 6
Step 1
Transition
condit ion “b”
Transition
condit ion “e”
Transition
condit ion “h”
St ep 3 Step 5
Transition
condit ion “c”
Transition
condit ion “f”
Transition
condit ion “d”
Transition
condit ion “g”
Transition
condit ion “i”
Step 7
Transition
condit ion “j”
Initial step
Transition
condit ion “a”
Is transition condition
a satisfied?
Operation output of
initial step 0 is executed.
YES
YES
YES
YES
NO
Operation output of initial
step 0 is deactivated.
YESYES
YES
YES
NO
NO
NO
NO
NO
NO
YES
YES
NO
NO
NO
Operation status
Operation output of initial
step 1 is executed.
Is transition condition
b satisfied?
Operation output of initial
step 1 is deactivated.
Operation output of initial
step 2 is executed.
Is transition condition
c satisfied?
Operation output of initial
step 2 is deactivated.
Operation output of initial
step 3 is executed.
Is transition condition
d satisfied?
Operation output of initial
step 3 is deactivated.
Operation output of initial
step 7 is executed.
Is transition condition
j satisfied?
Operation output of initial
step 7 is deactivated.
Block is ended since end
step is reached.
Is transition condition
e satisfied?
Operation output of initial
step 1 is deactivated.
Operation output of
initial step 4 is executed.
Is transition condition
f satisfied?
Operation output of initial
step 4 is deactivated.
Operation output of initial
step 5 is executed.
Is transition condition
g satisfied?
Operation output of initial
step 5 is deactivated.
Is transition condition
h satisfied?
Operation output of initial
step 1 is deactivated.
Operation output of initial
step 6 is executed.
Is transition condition
i satisfied?
Operation output of initial
step 6 is deactivated.
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