Abstract

For process control, it is important for operators to understand and trust the messages. To enable this, it is important to understand not only the content but also the logic, behind the message. Similarly, to develop feed-forward controls that achieve some level of production line integration, the logic for the controls must be adapted to local conditions. The logic may also have to be adapted for different products and for other factors such as seasonal changes and even day-night changes. These sorts of changes can only be managed on the shop floor. The presentation will discuss how expert systems, desk-top publishing and object orientation can be combined to develop a shared understanding of the logic of the process control system and its component parts, so that people from operations, including supervisors on the shop floor, can be involved in managing and adapting the logic to local requirements.

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