Discrete event control with CFC

Abstract

[Abstrac] In this paper it is proposed a discrete event control system representation methodology to design, implement and operate sequential systems, as an alternative to the sequential function chart (SFC) description method. Such method uses the standard language ST (structured text) of the IEC 61131-3 associated to the standard language developed by the Foundation Fieldbus, by associating ST based descriptions language to some function blocks on the basis of a continuous function charts (CFC) or function block diagrams (FBD)