Research Of Supervisory Control System Based On IPC And PLC

With the development of computer technology, automation technology, micro-electronics technology, modern measurement and sense technology, Industry Computer Supervisory Control system is gradually developed during the interpenetration of multiple technologies, which is primarily based on mechanics, electronics, aeronautics and astronautics. Especially,the interpenetration of automation and computer technology, which are developing industry control system to become the Computer Supervisory Control system that has advanced automation degree. At the same time of rapid development of mechatronics, Supervisory Control Technology also has attained the unprecedented development that is the important constitution part. Computer Supervisory Control is the core of mechanical and electronic system, which is developing in the direction of network, integration, intelligence and so on.Firstly, the presently researchful and developing state of Supervisory Control system is analyzed in the paper. Then we introduce in detail the class, constitution, configuration, control arithmetic, design approach and system platform of the Computer Supervisory Control system. The hardware module and software structure of Supervisory Control system based on IPC and PLC is discussed. We used advanced technology of PC software and hardware to construct a Computer Supervisory Control system platform with IPC, PLC, A/D card, D/A card, DI/O card and so on. We plenty consider not only system expansion but also the control capability. With the structure of host-client, i.e. superior machine adopt IPC and junior machine adopt PLC, the system has not only expandability, interlink ability, full development tool but also high real time ability and high precision, thus it may satisfy all kinds of control environmental requirement.We take example for Supervisory Control system of aviation organic glass stretcher in the paper. Stretcher Supervisory Control system is analyzed, the hardware and software platform and the result of testing and debugging is introduced. We primarily expound the software design course of the Supervisory Control system. Namely, we adopt the method of module designment. It consists of five functional modules and then it depicts the particular design consideration and method of the five functional modules. Ultimately, the configuration and program moduledesign of the Supervisory Control system is accomplished. During the development of the supervisory control software, we used some new technology and solved many key problems, establishing the basement for the run of the whole system.On the basis of the simulation result and the testing result, it is proved that the control strategy is accomplished with very fast convergence of the supervisory control system, the control system design is successful. It has the important actual significance of advancement of production efficiency and quality of stretching glass.