Basic Principles of Advanced Process Control System Structures and a Realization with Distributed Microcomputers

Abstract

The usual centralized structure of process computer systems cannot sufficiently use the progress of very large-scale integrated semiconductor technology with respect to the increasing demands for reliability and performance and to the decrease of the expenses of control panels, process peripherals, cables included. It is theoretically established, that distributed microcomputer systems allow a very favourable problem solving, so far as a specified minimum amount of requirements is fulfilled. To this a principle of duality, the cancelling of the Gross’s theorem and optimizing methods for cable expenses, system communication, availability, programming language and system as well as control-panel are treated. A completely developed system to applicate for steel industry processes is described.