Sequential Function Chart
Sequential Function Chart is one of the graphical languages. It can be regarded as a structuring
tool with which the sequential execution of processes can be represented clearly and compre
-
hensible.
The only possible program organisation unit in SFC is the program.
Sequential Function Chart has two basic elements, Steps and Transitions. A sequence consists
of a series of steps, each step separated from the next by a transition. Only one step in the
sequence can be active at any one time. The next step is not activated before the previous step
has been completed and the transition is satisfied.
Programming Languages Programming
3-14 MITSUBISHI ELECTRIC
Example for Sequential Function Chart
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