In industrial automation, the five IEC 61131-3 languages are pivotal tools for control system programming. Among these, Sequential Function Chart (SFC) language, often called GRAPH in the Siemens environment, plays a significant role. SFC provides a graphical representation of sequential control logic, breaking it down into Steps (actions) and Transitions (conditions). These visual elements offer a powerful way to design and implement sequential control logic for industrial automation tasks.
This is a companion discussion topic for the original entry at https://www.solisplc.com/tutorials/an-introduction-to-the-graph-language-in-tia-portal-sequential-function-chart