SFC elements in drawing field
Moreover, the drawing field of the →graphical FBD-editor displays the following SFC elements as graphical symbols:
Enhancement to IEC-standard The parallel usage of SFC elements and FBD-elements within the same POU, such as steps and parallel assignments by calls of blocks or value fields, is an enhancement to the →IEC-standard. According to the IEC standard, it is not possible to combine SFC elements with other FBD logic within the same POU. |
Using/Creating SFC networks efficiently and correctly
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Example for an FBD-logic with a step sequence:
See under "Creating SFC networks in FBD" for information how to create the respective SFC-element. See "Creating step sequences in FBD" for more examples of step sequences.