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An Automatic-Controller Description Language

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1 Author(s)
H. Takahashi ; Department of Mathematics, College of Science and Engineering, Nihon University

This paper proposes a control-oriented Algol-like nonprocedural language called Condor. Automatic controller theory, in company with computer science, underlies many industrial fields. Sequential control is especially important. So far, sequential-controller description methods have by and large been lmited to graphic ones, which are unreadable in the case of large controllers. A higher-level linguistic approach has been considered unlikely. This paper proposes a language widely suitable for controller architecture description. A controller, in its nature, consists of many subsystems which work in a parallel manner, interacting with one another. This paper deems that a basic component is not a process, but a response. A controller is considered to be a responding system in which every reactor works together, having a relation and communication to one another. A Condor program is a role assignment list for the reactors; it is Algol-like and nonprocedural. All the statements work at all times, interacting with one another.

Published in:

IEEE Transactions on Software Engineering  (Volume:SE-6 ,  Issue: 1 )