Author: Wu, X.
Paper Title Page
TUPV021
 Application Research of Inovance Plc in Accelerator Control System  
 
  • Y.C. He
    Institute of High Energy Physics, CAS, Guangdong, People’s Republic of China
  • X. Wu
    IHEP CSNS, Guangdong Province, People’s Republic of China
  • Y.L. Zhang
    IHEP, Beijing, People’s Republic of China
  
  In order to make the system stable and reliable, Programmable Logic Controllers (PLCs) are widely used to realize the slow control and interlock control of the accelerator control system. EPICS is a set of software tools used to build control systems for large scientific instruments such as particle accelerators. A prototype of communication between Inovance PLC and EPICS IOC was built by using a Inovance AC812 PLC controller. In order to simplify the system structure and reduce the development cost, the EPICS IOC was run in the AC812 PLC controller while running standard PLC program. The PLC program running in the AC812 PLC controller communicates with the EPICS IOC through the Modbus protocol, so as to integrate the data from the AC812 PLC controller into the EPICS IOC. Based on the brief introduction of EPICS, AC812 PLC controller and EPICS Modbus driver, the communication between the AC812 PLC controller and the EPICS IOC using EPICS Modbus drivers was tested. The test results show that the communication between the AC812 PLC controller and the EPICS IOC using the EPICS Modbus driver is smooth.  
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WEAL03 The Status of Fast Obit Feedback System of HEPS 540
 
  • P. Zhu, Y.C. He, D.P. Jin, L. Zeng, Y.L. Zhang
    IHEP, Beijing, People’s Republic of China
  • D.Y. Wang
    DNSC, Dongguan, People’s Republic of China
  • L. Wang, X. Wu, Z.X. Xie, K. Xue
    IHEP CSNS, Guangdong Province, People’s Republic of China
  
  In order to further meet the needs of major national strategies and basic scientific research, High Energy Photon Source (HEPS) will be a high-performance fourth-generation synchrotron radiation source in Beijing, which will build more than 90 high-performance beamline stations. In order to ensure the high-performance operation of each beam line, the stability of the beam orbit near the light source output point is extremely important. As one of the key guarantees for the stability of the electron beam orbit, The FOFB system can suppress the beam orbit disturbance within a certain bandwidth to an acceptable range. This article introduces the currently progress of the FOFB system, including: the overall architecture scheme and key technical routes; the substation design following the ATCA mechanical architecture; the BPM data acquisition and high-speed transmission using high-performance Rocket I/O transmission Mechanism; embedded high-performance DSP for fast multiplication calculation to realize SVD, etc. The entire system design is progressing in an orderly manner.  
slides icon Slides WEAL03 [40.593 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2021-WEAL03  
About • Received ※ 19 October 2021       Revised ※ 22 October 2021       Accepted ※ 21 November 2021       Issue date ※ 23 February 2022
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