| Paper |
Title |
Page |
| WEP070 |
Data Acquisition System of Beam Loss Monitors of the J-PARC Main Ring
|
537 |
| |
- S. Motohashi, M. Takagi
Kanto Information Service (KIS), Accelerator Group, Ibaraki
- D. A. Arakawa, Y. Hashimoto, N. Kamikubota, H. Nakagawa, J.-I. Odagiri, T. Toyama, S. Yamada, N. Yamamoto
KEK, Ibaraki
|
|
| |
Beam loss monitors are essential diagnostic devices for the operation of J-PARC Main Ring, which aims at the acceleration of the world-highest-power proton beams. The data acquisition system of the beam loss monitors is required to measure the time structure of the output signal integrated during the acceleration cycle. The repetition rate of the measurement in the duration needs to reach at a level of tens of Hertz with time jitters less than a few milliseconds. In addition, the measured data must be accessible by the EPICS-based control system, which manages the whole accelerator control. In order to satisfy the requirement, a new type of Input / Output Controller (IOC), which runs Linux on a CPU module of FA-M3 Programmable Logic Controller (PLC), has been adopted. To execute the data acquisition, the CPU module functions with high speed data acquisition modules of FA-M3 on the PLC-bus. We found that the IOC could meet the requirements and the development and maintenance of the software for the IOC was considerably efficient.
|
|
| THD005 |
Application of EPICS on F3RP61 to Accelerator Control
|
916 |
| |
- J.-I. Odagiri, S. Araki, K. Furukawa, N. Kamikubota, A. Kiyomichi, K. Mikawa, S. Murasugi, H. Nakagawa, T. T. Nakamura, S. Yamada, N. Yamamoto
KEK, Ibaraki
- K. Kameda, T. Natsui, H. Shiratsu
Yokogawa, Tokyo
- M. Komiyama
RIKEN Nishina Center, Wako
- S. Motohashi, M. Takagi
Kanto Information Service (KIS), Accelerator Group, Ibaraki
- N. Nagura
Nippon Advanced Technology Co. Ltd., Ibaraki-prefecture
- T. Nakamura
MELCO SC, Tsukuba
- A. Uchiyama
SHI Accelerator Service ltd., Tokyo
|
|
| |
A new type of Input / Output Controller (IOC) has been developed based on F3RP61, a CPU module of FA-M3 Programmable Logic Controller (PLC). Since the CPU module runs Linux as its operating system, it takes no special effort to run EPICS IOC core program on the CPU module. With the aid of wide variety of I/O modules of FA-M3 PLC, the F3RP61-based IOC has various applications in accelerator control, such as magnet power supply control, monitoring interlock system, stepping motor control, data acquisition from beam monitors and so forth. The adoption of the new IOC makes the architecture of accelerator control systems simpler by unifying the two layers of front-end computers, i.e., the IOC layer and the PLC layer, into one layer. We found that the simplification of the control system architecture helps us to reduce the time and cost for the development and maintenance of the application software.
|
|