
3.CREATING AND EDITING SEQUENCE PROGRAMS B-63484EN/05
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Beginning of selective branch
A branch occurs from one step to two or more steps, passing control to
a step below a transition where the condition is satisfied.
• A transition is placed below a branch.
• A step leading to the first transition where the transition
condition is satisfied becomes active.
• If transition conditions for more than one step are satisfied
simultaneously, transition occurs to the leftmost step.
• A branch can occur to up to 16 flows.
End of selective branches
Two or more flows that branched out gather back into one flow.
• The number of branching flows must match that of the gathering
flows.
Beginning of parallel branch
A branch occurs from one step to two or more steps, which become
active simultaneously.
• A transition is placed above a branch.
• After branching, all steps become active simultaneously and are
executed.
• A branch can occur to up to 16 flows.