Mitsubishi Electric FR - F700 Programming Manual page 79

Programming languages
(2) Sequence program operation method
Sequence program operation repeats execution from a ladder block at step 0 to
an END instruction.
In a single ladder block, operation is performed from the left hand side vertical
bus to the right, and from the top to the bottom.
Beginning of one
ladder block
Operation
from top
to bottom
Beginning of
one ladder block
Execution
returns to
step 0 when
Operation
END
from top
instruction is
to bottom
executed.
* 1) to 17) indicate the sequence of program operation.
72
Operation from left to right
1) 2)
3) 4)
6)
11) 13)
12)
END
Fig 3.3 Operation Processing Sequence
7) 8) 9)
5)
Operation from left to right
14)
10)
End of one
ladder block
15)
16)
End of one
17)
ladder block