关键词: 国产操作系统, SylixOS, EPICS, EtherCAT, 控制系统

Abstract: Chinese control systems have been able to replace foreign overall solutions in most industrial sites such as thermal power，chemicals and nuclear power. But as the control system core，the operating system of controller mainly depends on imports. A development method of Experimental Physics and Industrial Control System（EPICS）based on the EtherCAT protocol on SylixOS was introduced，which is a 100% autonomous real-time operating system. The communication between EPICS IOCs was implemented by creating a socket server. Besides，through the underlying protocol stack of IgH EtherCAT Master，the communication between EPICS IOCs and EtherCAT slave was realized. Then EPICS asynchronous drive mechanism was used to realize asynchronous communication between socket server and EPICS IOCs. The open source EPICS and IgH EtherCAT Master，and dls epics ethercat were ported to the SylixOS，the EtherCAT master function （EtherCAT input and output device communication）and the EPICS real-time database function were realized together in the controller，and the EPICS process control logic was implemented based on it. The application on nuclear energy comprehensive utilization ultra-light water project shows that the system is stable and reliable，and can meet the control system requirements of the project’s 10 ms sampling rate. This work improves the autonomy of the control system，realizes a more compact architecture based on EtherCAT，which can be expanded to the field of motion control with higher synchronization and sampling rates，and greatly reduces the cost of the control system.

Key words: domestic operating system, SylixOS, EPICS, EtherCAT, control system