Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 589)

L-force | PLC Designer
General Editors

DMS 4.1 EN 03/2011 TD29 587
13.2.1 CFC - Continuous Function Chart - Language
The Continuous Function Chart in extension to the IEC 61131-3 standard is a graphical
programming language basing on the Function Block Diagram language. However in
contrast to that no networks are used but free positioning of graphic elements, which
for example allows feedback loops.
For creating CFC programming objects in »PLC Designer« see: CFC Editor.
Abb. 313 Example of a CFC network
13.2.2 Cursor positions in CFC
A possible cursor position in a CFC program is indicated by default by a grey shadow
when moving with the cursor over the elements.
As soon as you click on one of these shadowed areas, still before you are leaving the
mouse-button, the area will change color to red. As soon as you leave the pressed
mouse-button, this will become the current cursor position, the respective element or
text being selected and displayed red-colored.
There are three categories of cursor positions. See the possible positions indicated by a
grey shaded area as shown in the following pictures:
1. If the cursor is positioned on a text, this will be displayed blue-shaded and can be
edited. The
button is available for opening the input assistant. Primarily after
having inserted an element "???" is displayed and must be replaced by a valid
identifier.
Abb. 314 Possible cursor positions and two examples of selected texts