The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Zheng, H. AU - Cao, H. AU - Chen, Y.X. ED - Cheng, Yung-Sen ED - Schaa, Volker RW ED - Chiu, Pei-Chen ED - Li, Lu ED - Liu, Yung-Hui ED - Petit-Jean-Genaz, Christine TI - Design of PLC Temperature Flow Acquisition System Based on EPICS J2 - Proc. of PCaPAC2018, Hsinchu, Taiwan, 16-19 October 2018 CY - Hsinchu, Taiwan T2 - International Workshop on Emerging Technologies and Scientific Facilities Controls T3 - 12 LA - english AB - In the design of the ADS injector II, the RFQ cavity holds a supreme status, and the RFQ temperature and flow information are the key parameters for the cavity frequency tuning. To ensure the long-term, stable and accurate acquisition of temperature flow data is the core task of control. In this paper, the PLC temperature flow acquisition system which is based on EPICS design was described, and the EPICS driver of this PLC was developed independently. The driver uses TCP/IP connection to EPICS IOC, and the communication protocol uses the "data block overall transmission protocol", to ensure the stability of the device’s data communications. After 3 months of long-term operation inspection, this acquisition system can ensure long-term and stable acquisition of real-time temperature and flow data of the equipment, and be able to send control information to related controlled equipment. In addition, redundant PLCs and redundant IOCs were adopted in this acquisition system to make the switch to alternate channels within milliseconds once a channel fails. PB - JACoW Publishing CP - Geneva, Switzerland SP - 109 EP - 110 KW - rfq KW - PLC KW - EPICS KW - interface KW - controls DA - 2019/01 PY - 2019 SN - 978-3-95450-200-4 DO - DOI: 10.18429/JACoW-PCaPAC2018-WEP31 UR - http://jacow.org/pcapac2018/papers/wep31.pdf ER -