ICALEPCS2013 - List of Authors (Odagiri, J.-I.)

Paper

Title

Page

Design and Status of the SuperKEKB Accelerator Control System

4

M. Iwasaki, A. Akiyama, K. Furukawa, H. Kaji, T. Naito, T.T. Nakamura, J.-I. Odagiri, S. Sasaki
KEK, Ibaraki, Japan
T. Aoyama, M. Fujita, T. Nakamura, N. Tanaka, K. Yoshii
Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
M. Hirose, K. Iwase
KIS, Ibaraki, Japan
T. Okazaki, N. Yoshifuji
EJIT, Hitachi, Ibaraki, Japan

SuperKEKB is the upgrade of the KEKB asymmetric energy e⁺e⁻ collider, for the B-factory experiment in Japan, designed to achieve a 40-times higher luminosity than the world record by KEKB. The KEKB control system was based on EPICS at the equipment layer and scripting languages at the operation layer. The SuperKEKB control system continues to employ those features, while we implement additional technologies for the successful operation at such a high luminosity. In the accelerator control network system, we introduce 10GbE for the wider bandwidth data transfer, and redundant configurations for reliability. The network security is also enhanced. For the SuperKEKB construction, the wireless network is installed into the beamline tunnel. In the timing system, the new configuration for positron beams is required. We have developed the faster response beam abort system, interface modules to control thousands magnet power supplies, and the monitoring system for the final focusing superconducting magnets to assure stable operations. We introduce the EPICS embedded PLC, where EPICS runs on a CPU module. The design and status of the SuperKEKB accelerator control system will be presented.

Slides MOCOAAB02 [5.930 MB]

MOCOBAB02

Integration of PLC with EPICS IOC for SuperKEKB Control System

31

J.-I. Odagiri, K. Furukawa, T.T. Nakamura
KEK, Ibaraki, Japan

Recently, more and more PLCs are adopted for various frontend controls of　accelerators. It is common to connect the PLCs with higher level control layers by the network. As a result, control logic becomes dispersed over separate layers, one of which is implemented by ladder programs on PLCs, and the other is implemented by higher level languages on frontend computers. EPICS-based SuperKEKB accelerator control system, however, take a different approach by using FA-M3 PLCs with a special CPU module (F3RP61), which runs Linux and functions as an IOC. This consolidation of PLC and IOC enables higher level applications to directly reach every PLC placed at frontends by Channel Access. In addition, most of control logic can be implemented by the IOC core program and/or EPICS sequencer to make the system more homogeneous resulting in easier development and maintenance of applications. This type of PLC-based IOCs are to be used to monitor and control many subsystems of SuperKEKB, such as personnel protection system, vacuum system, RF system, magnet power supplies, and so on. This paper describes the applications of the PLC-based IOCs to the SuperKEKB accelerator control system.

Slides MOCOBAB02 [1.850 MB]

Paper	Title	Page
MOCOAAB02	Design and Status of the SuperKEKB Accelerator Control System	4
	M. Iwasaki, A. Akiyama, K. Furukawa, H. Kaji, T. Naito, T.T. Nakamura, J.-I. Odagiri, S. Sasaki KEK, Ibaraki, Japan T. Aoyama, M. Fujita, T. Nakamura, N. Tanaka, K. Yoshii Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan M. Hirose, K. Iwase KIS, Ibaraki, Japan T. Okazaki, N. Yoshifuji EJIT, Hitachi, Ibaraki, Japan
	SuperKEKB is the upgrade of the KEKB asymmetric energy e⁺e⁻ collider, for the B-factory experiment in Japan, designed to achieve a 40-times higher luminosity than the world record by KEKB. The KEKB control system was based on EPICS at the equipment layer and scripting languages at the operation layer. The SuperKEKB control system continues to employ those features, while we implement additional technologies for the successful operation at such a high luminosity. In the accelerator control network system, we introduce 10GbE for the wider bandwidth data transfer, and redundant configurations for reliability. The network security is also enhanced. For the SuperKEKB construction, the wireless network is installed into the beamline tunnel. In the timing system, the new configuration for positron beams is required. We have developed the faster response beam abort system, interface modules to control thousands magnet power supplies, and the monitoring system for the final focusing superconducting magnets to assure stable operations. We introduce the EPICS embedded PLC, where EPICS runs on a CPU module. The design and status of the SuperKEKB accelerator control system will be presented.
	Slides MOCOAAB02 [5.930 MB]

MOCOBAB02	Integration of PLC with EPICS IOC for SuperKEKB Control System	31
	J.-I. Odagiri, K. Furukawa, T.T. Nakamura KEK, Ibaraki, Japan
	Recently, more and more PLCs are adopted for various frontend controls of　accelerators. It is common to connect the PLCs with higher level control layers by the network. As a result, control logic becomes dispersed over separate layers, one of which is implemented by ladder programs on PLCs, and the other is implemented by higher level languages on frontend computers. EPICS-based SuperKEKB accelerator control system, however, take a different approach by using FA-M3 PLCs with a special CPU module (F3RP61), which runs Linux and functions as an IOC. This consolidation of PLC and IOC enables higher level applications to directly reach every PLC placed at frontends by Channel Access. In addition, most of control logic can be implemented by the IOC core program and/or EPICS sequencer to make the system more homogeneous resulting in easier development and maintenance of applications. This type of PLC-based IOCs are to be used to monitor and control many subsystems of SuperKEKB, such as personnel protection system, vacuum system, RF system, magnet power supplies, and so on. This paper describes the applications of the PLC-based IOCs to the SuperKEKB accelerator control system.
	Slides MOCOBAB02 [1.850 MB]