Sources of Disturbances in a Closed-loop Control System using Fieldbus

The goal of the paper is to investigate the sources of disturbances in a closed-loop system implemented with fieldbuses. The influence of the fieldbus in the closed-loop control system is mentioned. The integration of the communication system in the closed-loop system and the modes of it communication system are described. Finally, the sources of delay and loss of data because of the faults in the communication system are given.