Dissertation > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system

Research on Real-time Performance of Mono-Master PLC Control System Based on PROFIBUS

Author LiuSuYing
Tutor MaBoYuan
School Xi'an University of Electronic Science and Technology
Course Control Theory and Control Engineering
Keywords PLC PROFIBUS fieldbus Response time Monitoring and control cycle
Type Master's thesis
Year 2009
Downloads 328
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Involved in research projects in this paper comes from the actual needs of the projects , as real-time the underlying industrial control network performance analysis system constructed to provide a theoretical basis for the user . Automation Engineering PLC and PROFIBUS master control system for the study of the background , a detailed analysis of the PLC cycle scan mechanism and PROFIBUS bus data link layer data transmission services and the MAC sub-layer protocol and other key technologies . Given on the basis of the normal operation of the system , the main measurement and control cycle from the data exchange between stations , and further draw the master with simple communication response time from the station from the station and intelligent . Next, the analysis of the PROFIBUS DP / PA hybrid network delay characteristics , and insert additional idle time to improve the response speed of the DP segment master and PA segment from the information between stations . Finally, a project application system , consider the delay characteristics of the PLC I / O response lag and hybrid networks , real-time performance analysis of the system . The application of engineering case proved that the real-time performance analysis study has great value in engineering .

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