北京放射性核素装置在线同位素分离器(BRISOL)是串列加速器升级工程项目中放射性核束的产生与注入部分。它是质量分辨率为1/20000，能够产生多种放射性核素的物理实验终端。该装置的电源控制系统是在PLC(Programmable Logic controller)框架下构建的基于以太网的分布式控制系统。详细介绍了控制系统的基本结构和工作原理、各种电源的控制方案、安全连锁设计、解决干扰的措施、图形化控制界面的软件设计和数据存储方法。该控制系统已经投入使用，工作稳定可靠。
The Beijing Radioactive Isotope Separator On-Line(BRISOL) is a part of the HI-13 tandem upgrade project, mainly for the production of radioactive nuclear beam, identification of radioactive nuclide and injection into the HI-13 tandem. And the mass resolution of BRISOL is 20 000. The distributed Ethernet architecture based on PLC was used for the power supply control system of BRISOL. This paper introduces the basic principle of the control system, the control schemes of various power supply, the measures to solve the interference and data storage, and also some consideration of design, including safety interlock, graphical control interface. Now, the control system has been put into use, and its performance is stable and reliable.
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