The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Kamikubota, N. AU - Aoyama, T. AU - Iitsuka, T. AU - Nemoto, H. AU - Sato, K.C. AU - Yamada, S. AU - Yamamoto, N. AU - Yoshida, S.Y. ED - Schaa, Volker RW TI - Operation Experience and Migration of I/O Controllers for J-PARC Main Ring J2 - Proc. of PCaPAC2016, Campinas, Brazil, October 2528, 2016 C1 - Campinas, Brazil T2 - International Workshop on Personal Computers and Particle Accelerator Controls T3 - 11 LA - english AB - The control system for J-PARC Main Ring (MR) was constructed in 2007-2008, followed by the first beam in May, 2008. In 2007, the VME-bus computers were selected as I/O controllers (Epics IOC). The number of them in 2008 was about 80. In 2016, addition to the VME controller, we have non-VME controllers: a) Yokogawa F3RP61 (Linux-based controller with PLC IO modules), b) vioc (Epics IOC on a virtual machine), and c) commercial micro-server (Pinon Type-P). The total number of controllers in 2016 has reached 170. Based on operation experience since 2008, following issues are discussed. (1) We decided to use VME-bus computers as highly reliable front-end controllers. Failures of them are reviewed, and judge to the past decision is given. (2) Specific characteristics of three non-VME controllers, proper use of them, and present status in the MR controls, are explained. (3) Recently, a few pieces of commercial micro-server have been introduced and inspected. It is compact, low-cost, but seems reliable enough as an I/O controller. Details are shown. Finally, future perspective of I/O controllers for J-PARC MR will be given. PB - JACoW CP - Geneva, Switzerland SP - 101 EP - 104 KW - ion KW - controls KW - PLC KW - EPICS KW - operation DA - 2017/09 PY - 2017 SN - 978-3-95450-189-2 DO - 10.18429/JACoW-PCaPAC2016-THPOPRPO09 UR - http://jacow.org/pcapac2016/papers/thpoprpo09.pdf ER -