In a sequential function chart, you program steps and transitions that are arranged like a flowchart and when executed, control your system in a proscribed order.

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Sequential Function Chart (SFC) is a graphical programming language, used for programmable logic controllers (PLCs), that organizes the program into steps and transitions arranged in a flowchart-like manner, controlling the execution order of the system operations.

In a Sequential Function Chart, You Program Steps and Transitions