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An experiment in distributed manufacturing control

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<mark>Journal publication date</mark>1/07/1992
<mark>Journal</mark>The International Journal of Advanced Manufacturing Technology
Issue number4
Number of pages7
Pages (from-to)231-237
Publication StatusPublished
<mark>Original language</mark>English


Local area networks are used in industrial control applications that require the digital interconnection of low-level devices such as transducers, actuators and simple controllers. It is possible to use such interconnections solely as a wiring alternative to the traditional star-connected computer controllers and to leave the control of the application with one ‘central’ computer. However, using a local area network to connect intelligent low-level devices opens up the possibility of applying a distributed control methodology to the application. This paper describes the application of a distributed control approach to a work cell previously based around a single, large programmable logic controller. Comparisons of the two approaches are made in an attempt to quantify the effect of this new approach on the metrics of the work cell.