Based On Profibus And As-i Field Bus Control System Design And Research

Fieldbus technology is a digital, distributed, open and inter-operational technology, which represents the development trend of industrial control system. In the paper, we first analyzed the birth of fieldbus and its characteristic and excellences, then we thoroughly studied the network architecture and communication protocol of PROFIBUS and AS-i .On the foundation of above works, we designed a small but applied fieldbus monitoring and control network, which provides a ideal study and experiment platform for the application of PROFIBUS and AS-i technology. We thoroughly discussed the architecture and design process of the fieldbus monitoring and control network, and we also studied the DP interface programming according to the problem met in the design process. We also designed a fieldbus control system which is applied to cigarette making machinery with the reconstruct project of cigarette factory as its background. In addition, we discussed PROFInet and the development of industrial control network. In the end, we studied and developed a PLC simulation and debugging system based on personal computer according to the experience in the design of fieldbus control system.