→SFC - sequential function chart

according to →IEC-standard: An additional set of ... textual elements named sequential Function Chart (SFC) is defined for structuring the internal organization of programmable controller →programs and →function blocks. ... Subclause 6.7 defines sequential function chart (SFC) elements for use in structuring the internal organization of a →programmable controller organization unit, written in one of the languages defined in this standard, for the purpose of performing sequential control functions. ... The SFC elements provide means of partitioning a programmable controller program organization unit into a set of →steps and →transitions interconnected by directed links. Associated with each step is a set of →actions, and with each transition is associated a transition condition. ... If any part of a program organization unit is partitioned into SFC elements, the entire program organization unit shall be so partitioned.

In logi.CAD 3 you are able to use the SFC elements within the following editors in order to create step sequences: