Исследование влияния временных параметров шины Profibus на качество процессов управления в распределенных системах автоматизации

Abstract

Chervinsky V.V., Bessarab V.I., Zhukova N.V. Examination of influence of time parameters of the Profibus on quality of a control processes in distributed systems of automation. In article the description of complex switching model of interaction of builders of distributed system of automation on an example of installation on processing coal in pyrolysis gas designed. The model operation of processes of information exchange between builders of system of automation by means of the fieldbus is conducted, in result the timing diagrams per control cycle are obtained. The delays imported on an input and an output of a control system are spotted. The guidelines of the choice of velocity of the fieldbus providing execution of all indispensable evaluations and information exchange, with given permissible influence to quality of a control system are designed.