Application Research Of PROFINET In Accelerator Control System

The accelerator control system is generally a network-based distributed control system.It follows the "standard model" and consists of 3 parts:the Operator Interface,Data Communication,and the Front-end Computers.Data communication is the tie in the accelerator control system.As the scale of the accelerator increases,the requirements for data communication performance become higher and higher.Reliability and real-time performance are the key factors affecting the performance of accelerator control system.PROFINET is the most widely used industrial Ethernet in the field of industrial control and it is the leader in redundant technical support presently which can provide mature commercial solutions.PROFINET has also been used widely in accelerator control system.EPICS is the most widely used development tool and operating environment in the field of accelerator control.This thesis integrates PROFINET technology into EPICS environment and conducts a series of application research.First,this thesis analyses and tests the PROFINET Real-Time(RT)and Isochronous Real-Time(IRT)communication protocols.The RT and IRT communication frames are grabbed and parsed by the Ethernet analyser netANALYZER and Wireshark software,the frames structures and characteristics are grasped.Secondly,this thesis designs a fully redundant EPICS control system architecture based on PROFINET.The architecture consists of the EPICS IOC layer,PROFINET 10 controller layer,PROFINET IO device layer and the PROFINET communication network layer.The layers are independent and can be configured separately for redundancy.Based on VMware FT(Fault Tolerance)technology,Phoenix redundant PLC and PROFINET technology,the prototype system is developed.The test shows that the redundancy performance of the system meets the design requirements,and it has a wide range of engineering application prospects.Third,the interlock system of Tunable Infrared Laser for Fundamental of Energy Chemistry(FELiChEM)facility is designed by using the fully redundant EPICS control system architecture.In addition,this thesis designs an EPICS control system structure solution based on Siemens PROFINET communication board CP1616.This solution supports PROFINET IRT communication and the EPICS IOC can double as the PROFINET IO controller,simplifying the control system structure.Finally,this thesis designs and develops a new Hefei Light Source-?(HLS-?)Personnel Safety System(PSS)based on PROFINET technology according to the operation requirements of HLS-II.The new PSS integrated PROFINET technology and redundant PLC into EPICS environment,which can be fully compatible with the HLS-II control system for easy information and software sharing.In the design of the new PSS,the personnel classification management is realized by the classification management of the access card,and the query and statistics of the card swipe event can be performed through the web-based personnel management system.In order to shorten the system debugging time,a complete offline test platform is established,and the comprehensive functions and performance tests are carried out.The test results show that the new PSS has reached the design goal.