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- A. Uchiyama
SHI Accelerator Service ltd., Tokyo
- K. Furukawa, N. Kamikubota, H. Nakagawa, T. T. Nakamura, J.-I. Odagiri, M. Tomizawa, N. Yamamoto
KEK, Ibaraki
- K. Kameda, T. Natsui, H. Shiratsu
Yokogawa, Tokyo
- M. Komiyama
RIKEN Nishina Center, Wako, Saitama
- T. Nakamura
MELCO SC, Tsukuba
- M. Takagi
Kanto Information Service (KIS), Accelerator Group, Ibaraki
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Control systems of modern accelerators, such as RIBF, KEKB and J-PARC, adopt many programmable Logic controllers (PLCs). They are supervised by Input/Output controllers (IOCs) of Experimental and Industrial Control System (EPICS) with being controlled and monitored through Ethernet connections. In this type of control system, the adoption of Ethernet as a field-bus reduces the work load for the development of device/driver support modules of EPICS. On the other hand, having controllers (PLCs) under yet another controllers (IOCs) doubles the work load for the implementation of the front-end software. In order to solve the problem, we developed an embedded EPICS on F3RP61-2L, a CPU module running Linux that can work with a base module and I/O modules for FA-M3 PLC. We found that the IOC program can run without any modifications on the CPU module. This paper describes the details of the embedded EPICS system and the application of the new type of IOC for the control systems in operation and under construction.
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