Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 113

• The selective sequence allows branching to up to 32 transition.
• If multiple transitions become TRUE simultaneously, the condition to the left will take precedence.
(1)
(3)
• An SFC diagram in which the numbers of branches and convergences of a selective sequence do not match can also be
created. However, in an SFC diagram, a selection branch and parallel convergence or a parallel branch and selective
convergence cannot be combined.
• In a selective transition, a convergence can be omitted by a jump transition or end transition.
When transition (2) becomes TRUE during action of step (1), step (3) and step (4) are sequentially executed. When the transition
(5) becomes TRUE, a jump sequence to step (1) occurs.
(1)
(2)
(3)
(4)
(5)
The above program can be created by changing the step other than those at the left end of selective branches
to the end step and changing the end step at the left end of the selective branch to a jump sequence.
For the operation method for changing steps, refer to the following.
 GX Works3 Operating Manual
(2)
If transition (1) and (2) become TRUE simultaneously, the action of step
(3) will be executed.
8 SFC PROGRAM
111
8.2 Structure
8