Operation Experience and Migration of I/O Controllers for J-PARC Main Ring
| Autor: | Kamikubota, Norihiko, Aoyama, Toshiaki, Iitsuka, Takao, Nemoto, Hiroyuki, Sato, Kenichi, Yamada, Shuei, Yamamoto, Noboru, Yoshida, Susumu |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| DOI: | 10.18429/jacow-pcapac2016-thpoprpo09 |
| Popis: | 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. Proceedings of the 11st Int. Workshop on Personal Computers and Particle Accelerator Controls, PCaPAC2016, Campinas, Brazil |
| Databáze: | OpenAIRE |
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