Справочник Пользователя для Mitsubishi Electronics 700 Series

(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.

Fig 3.3 Operation Processing Sequence

Beginning of one 
ladder block

Operation from left to right

End of one 
ladder block

Operation from left to right

Execution 
returns to 
step 0 when 
END 
instruction is 
executed.

* 1) to 17) indicate the sequence of program operation.

1)

2)

7)

8)

9)

10)

3)

4)

5)

6)

11)

13)

14)

12)

15)

16)

17)

Operation 
from top 
to bottom

Operation 
from top 
to bottom

END

End of one 
ladder block

Beginning of 
one ladder block