The SFC editor is available for programming objects in the IEC 61131-3 programming language SFC - Sequential Function Chart. Choose the language when you add a new POU object to the project.
The SFC editor is a graphical editor. Perform general settings concerning behavior and display in the Options > SFC editor dialog box.
The SFC editor is available in the lower part of the window which opens when you edit an SFC POU object. This window also includes the Declaration Editor in the upper part.
SFC editor
The elements used in an SFC diagram are available in the SFC menu. The menu is available as soon as the SFC editor is active. Arrange them in a sequence or in parallel sequences of steps which are connected by transitions. For further information, refer to Working in the SFC Editor.
You can edit the properties of steps in a separate properties window. Among others, you can define the minimum and maximum time of activity for each step.
You can access implicit variables for controlling the processing of an SFC (for example, step status, timeout analyzation, reset).
