The Platform Migration of EAST Vacuum Control System

Experimental Advanced Superconducting Tokamak (EAST) is the world's first fully superconducting tokamak with non-circular cross-section. Vacuum system is one of the most important parts of the EAST. With the continuous expansion of the vacuum system in recent years, the current control system has been unable to fully meet the requirement of multi-protocol and multi-device. Therefore, How to achieve reliable protocol conversion and data exchange between different intelligent devices and data sources becomes a significant and urgent problem that must to be solved for vacuum control system. Additionally, queryable and releasable data storage is also important for physics research and user experience. In this paper, the seamless connection between the host and slave Siemens equipments is completed by using Siemens WINCC. Multi-level framework of display station, operator station, engineer station, archive station and vacuum server are achieved by system extending longitudinally. In addition, local controlling, control room scheduling and data sharing are also achieved independently. The migrated platform will integrate OPC server developed by VC++ to build the channel of permission among serial devices, in order to achieve unimpeded conversion among communication protocols. By this way, deep integration of vacuum control system including the master station and sub station can be reached. Besides, the platform migration of vacuum control system will conduce the publication and sharing of vacuum data, with enhancing the stability of vacuum system at the same times. Therefore, the new vacuum control system would provide a guarantee for the next campaign of EAST.