基于EPICS的J-TEXT CODAC系统

J-TEXT装置是华中科技大学恢复建造的中型托卡马克装置，已于2007年放电运行，其控制系统采用分布式结构，由多个子系统组成。为提高子系统集成、维护和更新的效率，并有效地管理各子系统、控制装置的运行状态及保障设备和人员安全，J-TEXT装置参考ITER CODAC的设计思路，结合J-TEXT装置的需求设计了J-TEXT CODAC系统。J-TEXT CODAC系统为装置各子系统提供统一的设计模型和相关设计标准，使用EPICS软件作为通讯中间层，设计了全局控制系统、时序和同步控制系统、联锁保护系统，并将原有控制系统改造、集成到J-TEXT CODAC系统中。目前该系统已部署在J-TEXT装置上，在2012年春季以来的多轮实验中运行良好。

J-TEXT CODAC System Based on EPICS

The J-TEXT device is a medium-sized Tokamak which was reconstructed in Huazhong University of Science and Technology, and it has been operating since 2007. J-TEXT is a distribute control system including various plant systems. In order to improve the efficiency of plant system integration, maintenance and upgrade, and to manage each plant system, control operation status, guarantee security of devices and operators, J-TEXT CODAC system was designed according to the design idea of ITER CODAC. J-TEXT CODAC system provided a unified design model and relevant design standards for plant system, adopted EPICS software as the communication layer, and developed global control plant system, timing and synchronization plant system and global interlock plant system. The old subsystems in J-TEXT were reformed and integrated in J-TEXT CODAC system. J-TEXT CODAC system was deployed in J-TEXT recently, and it has been operating properly in the experiments since the spring of 2012.