PROCESS-CONTROL CONSIDERING ENVIRONMENTAL ASPECTS

The preconditions for controling process plants under consideration of environmental and ecological aspects are met by the projects first ph ase - the phase of planning. Describing the process under an ''integra ted view'' guarentees the fulfilment of economical as well as environm ental requirements. The design of a so-called ''information model'' is assigned to process control engineering. The information model is bas ed om the process structure itself. The different demands of process c ontrol are represented by different, related points of view in the inf ormation model. One of todays most important points of view considers environmental demands. In this paper the so-called ''phase model of pr oduction'' is introduced as a semantic tool for modelling processes - in short an information model for processes. Its use is demonstrated f or waste water treatment. Based on the elaborated information model, d ifferent engineering applications, as determining the plants instrumen tation devices (sensors, actuators) or the requirements for field comm unications, are pointed out. Concerning concepts for man-process-commu nication, some perspectives for process control under consideration of environmental aspects are presented.