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Abstract:
A superconducting cryogenic system has been designed and deployed in the Beijing Electron-Positron Collider Upgrade Project (BEPCⅡ). The system consists of a Siemens PLC (S7-PLC, Programmable Logic Controller) for the compressor control, an Allen Bradley (AB) PLC for the cryogenic equipments, and the Experimental Physics and Industrial Control System (EPICS) that integrates the PLCs. The system fully automates the superconducting cryogenic control with process control, PID (Proportional-Integral-Differential) control loops, real-time data access and data storage, alarm handler and human machine interface. It is capable of automatic recovery as well. This paper describes the BEPCⅡ cryogenic control system, data communication between S7-PLC and EPICS Input/Output Controllers (IOCs), and the integration of the flow control, the low level interlock, the AB-PLC, and EPICS.
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References
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. ZHANG Chuang. Introduction of the Project BEPCⅡ,IMAC05. Beijing, 20052. Kraimer M R. EPICS IOC Application Developer's Guide, ANL/APS Report. 1998. 5-113. ZHAO Ji-Jiu. BEPCⅡ Design Report: Control System.Beijing: Institute of High Energy Physics, CAS. 2002 (in Chinese)4. XU Feng-Yu. The Cryogenics Control System of BEPCⅡ.Institute of Cryogenics and Superconducitivity Technology,HIT, 2004 (in Chinese)5. Matthias C. Review Summary. BEPCⅡCryogenic Control Seminar, Beijing, 20056. JIN Yi-Hui. Process Control. Beijing: Tsinghua University Press, 1993 (in Chinese)7. SONG Bo-Sheng. The Program Theory, Arithmetic and Tip of PLC. Beijing: China Machine Press, 2005 (in Chinese) |
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, XIONG Yong-Qian
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, YANG Jun
, LI Dong
, YU Tiao-Qin
, FAN Ming-Wu
, YANG Bo
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2014, 38(10): 107008.
doi: 10.1088/1674-1137/38/10/107008
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, SUN Jian
, ZHAO Guang-Yuan
, SHI Cai-Tu
. Principle and Software Design of Helmhotz Coil Measurement System. Chinese Physics C,
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