Abstract

This paper deals with the modeling of control systems based on the standard for industrial communications MMS [ISO-9506]. This model captures the machine’s main struaural characteristics in industrial communications environments, but lacks formal semantics describing device programs. In order to define the device program semantics Colored Timed Petri Nels are used. In its interpretation we include MMS service calls referencing MMS model objects. The object model definitions are constructed in EXPRESS, [IOS-10303 part 11] language. Man-machine interfaces are built using an iconic paradigm and Motif widgets. The model is stored in standard format STEP[IOS-10303, Part 21]. This model is then specialized for industrial network design based on fieldbus PROFIBUS (DIN-19245].

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