SFC Editor¶

The SFC editor is graphical editor. A new SFC POU includes an Init step and a subsequent transition.

In the SFC editor, you can insert individual elements into the diagram by means of commands in the SFC menu, the context menu, or the ToolBox view.

When inserting by means of a menu command, the elements that can be inserted at the currently selected position are available.

Before inserting branches parallel to multiple actions and transitions, you must highlight these actions and transitions in a multiple selection.

You can also drag SFC elements from the ToolBox view to the diagram. When you drag an element over the editor, CODESYS marks all possible insertion points with gray boxes. If you move the mouse over a gray box, then the color of the box changes to green. When you release the mouse button, the object is inserted at that location.

If you drag a branch into the diagram, then you must set the beginning and the end of the branch using the mouse pointer. You set the beginning of the branch by releasing the mouse button at an insertion point. The color of the box then changes to red. You set the end of the branch by clicking the second insertion point. Then CODESYS inserts a branch around the objects between the beginning and end markers.

For copying step and transition elements that call action objects or transition objects, two different duplication modes can be set. Either the references are copied at the same time, or the referenced objects are embedded and duplicated when copying.

You define the look and feel of the editor in the CODESYS options (SFC editor).