
10.STEP SEQUENCE FUNCTION B-63983EN/02
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10.3.7 Convergence of Simultaneous Sequence
It combines two or more divergent paths to the main sequence.
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· A convergence of simultaneous sequence is processed as
follows.
· Wait processing is processed as follows.
Case 1)
S10
P120
S21
When the transition P120 evaluates true,
step S10 and S20 are terminated and step
S21 is activated.
S20
S10
P109
S20
When the transition P109 evaluates true
unless both of step S11 and S16 are
active, control does not pass to step S20.
When the transition P109 evaluates true
while both of S11 and S16 are active, S11
and S16 are terminated and S20 is
activated. In the case, P109 provides the
termination conditions for both S11 and
S16.
P110
S11
S15
P115
S16