The Design Of Monitoring System Of Pulsed High Magnetic Field Facility Based On PLC

As one of the most important extreme condition in modern scientific research, pulsed high magnetic field provides a significant platform for scientific experiment of physics, materials science, life science and so on. Due to demand of scientific research, pulse high magnet technology has caused more and more attention of researcher. While Control and measuring system plays an important role in pulse high magnetic field technology.In this thesis, a monitoring system of Pulsed High Magnetic Field Facility based on PLC is designed, and the functions of charging, discharge are achieved.PLC is as the core local controller, and SIMATIC WINCC is as the platform for Upper Layer Software design. And OPC technology is applied to design upper layer software as another scheme, based on the OPC Server provided by SIMATIC NET. The main work of this thesis is as follows:Firstly, it briefly describes the role of monitoring system in pulsed high magnetic field facility, analyzes the characteristics of control and measurement systems of pulsed high magnetic field facility at home and abroad and illustrates a scheme of monitoring system based on PLC.Secondly, it introduces the structure and working principle of pulsed high magnetic field facility, and on this basis it focuses on designing the hardware and software of the monitoring system. PLC hardware configuration and electrical connection are described in detail, and the program of PLC control and the remote operation is also illustrated.Thirdly, it describes a solution of upper layer software based on OPC technology, introducing the background of OPC, principle, architecture and OPC client program design.