【摘要】 中国散裂中子源(CSNS)的磁铁电源全面采用数字化技术。磁铁电源是由电源内部的数字电源控制器DPSCM来进行电压电流回路的调节,其主要是由CYCLONE Core+NIOS-II系统组成,它具有RS-232通信(MODBUS协议)接口。为此,远程控制系统制定了基于Modbus/RS232的DPSCM的通讯规约,并使用MOXA嵌入式串口设备DA682开发了基于Modbus/RS232的EPICS IOC和实时数据库,并与DPSCM及RCS动态电源进行了现场联调。调试结果表明,使用DA682完全能够实现对RCS磁铁电源的远程控制,系统稳定可靠易扩展,满足物理要求。更多还原

【Abstract】 All of the magnet power supply of the China Spallation Neutron Source(CSNS) intends to use digital technology.The magnet power supply is controlled by an internal intelligent controller Digital Power Supply Control Module(DPSCM),which can regulate the current and voltage circuit.The DPSCM consists of CYCLONE core and NIOS-II system,it has RS232 communication interface with Modbus protocol.So,the remote control system made the communication protocol based on Modbus/RS232.We design EPICS IOC application and real-time database on MOXA embedded serial device DA682 based on Modbus/RS232.The EPICS IOC can communicate well with DPSCM by Modbus RTU protocol by the testing.The test result shows the EPICS IOC is stable and easy to expand,and it can meet the physical demand.更多还原