Abstract
The paper illustrates a novel methodology which formally structures design processes associated with distributed machine control systems. Particular difficulties are experienced if the control software needs to concurrently control the operation of a variety of mechanisms and processes in real-time. The approach, combines a reference architecture with a Petri net modelling technique for simulation and design of machine control systems which led to a new Modular Petri net approach. The approach promotes software reuse and reliability and helps solve problems of deadlock and conflict which are common in machine systems. The paper demonstrates the sequential and concurrent operation of Petri nets and discuss difficulties in enabling their interaction with real-time machine control systems. This is to provide the creators of machine control systems with a structured way of using distributed control techniques, leading to solutions which are modular, concurrent, reusable and extendable.
Published Version
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