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The OMAC Packaging Machine Language Working Group has published a recommendation of a uniform state model for managing the different operation states and the user actions with packaging machinery. This proposed state model with well-defined states and transitions shall overcome the integration problems of the past and present concerning the different semantics of software and user interfaces of packaging...
We defined the so-called "handler-based execution model" as a real-time capable execution model for CNet [H. Wurmus, 2002] [N. Hagge and B. Wagner, 2005]. Traditional controller implementations typically consist of big loops with a fix sequential execution scan order. This was not appropriate for Petri-net based CNet that is characterized by a high degree of concurrency and locality. Our...
As an alternative to Statecharts and IEC 61499, which usually support implementations in C or IEC 61131, respectively, we have defined CNet to allow Petri net based graphical design and generation of Java code. CNet is a component-based conception for designing modular, concurrent and distributed control systems. The components can be reused and their event-discrete behavior is described by a special...
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