The Function Block Network diagram editor
A graphical user friendly editor for the the construction  and  editing of Function Block network diagrams.

Using specific toolbars the engineer can easily create in the design model FB instances of pre-defined FB types and data and event connections between  them and to the industrial process terminators (IPTs)

Event FBs and SIFBs are supported (optional feature) in more flexible manner that results in simplified FB diagrams and improves the performance of the corresponding control application.

Event FBs such as "event splitter", "event merger", "event rendezvous", etc. are provided as icons and an event-API has been defined that should be provided by an IEC-compliant device.