This program flow nature of Sequential Function Chart is why it’s so often used. “It’s great for stepped or discrete sequencing. A classic example would be a batching engine where you might have, say, ...

The differences among and preferences for Instruction List, Structured Text, Ladder Diagram, Function Block Diagram, and Sequential Function Chart PLC programming languages, as well as C and C+, are ...

Each language also uses an organization language commonly known as Sequential Function Chart. This language helps organize the sequences of functions in a PLC program.

Figure 6: FBD for program ScanInput. D. Function and Function blocks. These are the basic building blocks, containing a data-structure and an algorithm. For our study example, 1) The required function ...