ICALEPCS1991 - List of Authors (Yoshikawa, H.)

Paper	Title	Page
S03SRD13	Design of a Control System of the Linac for SPring-8	154
	H. Yoshikawa, Y.I. Itoh, T. Kumahara JAERI, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
	The design of a control system of the linac which is a large scale system including many unstable components like klystrons and modulatora. The linac for SPring-8 requires to be operated automatically for injection to the synchrotron. Under these conditions, we chose a distributed control system architecture of a single layer net-work to simplify the protocol of the net-work between the linac, the booster synchrotron and the storage ring. A VME computer of 68030 is put in every modulator of the linac, and all control signals are gathered to the nearest VME computer. OS-9 and OS-9000 are on trial for investigation of the performances. TCP/IP is tentatively chosen as a protocol of the net-work, but we expect that MAP/MMS makes a high performance, and we are preparing a test of it.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD13
About •	Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

S03SRD12	Design of SPring-8 Control System	151
	T. Wada, T. Kumahara, H. Yonehara, H. Yoshikawa, T. Masuda, W. Zhen JAERI-RIKEN/Spring-8 Project Team, Tokyo, Japan
	The control system of SPring-8 facility is designed. A distributed computer system is adopted with a three-hierarchy levels. All the computers are linked by computer networks. The network of upper level is a high-speed multi-media LAN such as FDDI which links sub-system control computers, and middle are Ethernet or MAP networks which link front end processors (FEP) such as VME system. The lowest is a field level bus which links VME and controlled devices. Workstations (WS) or X-terminals are useful for man-machine interfaces. For operating system (OS), UNIX is useful for upper level computers, and real-time OS’s for FEP’s. We will select hardwares and OS of which specifications are close to international standards. Since recently the cost of software has become higher than that of hardware, we introduce computer aided tools as many as possible for program developments.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD12
About •	Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Design of a Control System of the Linac for SPring-8

154

H. Yoshikawa, Y.I. Itoh, T. Kumahara
JAERI, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan

The design of a control system of the linac which is a large scale system including many unstable components like klystrons and modulatora. The linac for SPring-8 requires to be operated automatically for injection to the synchrotron. Under these conditions, we chose a distributed control system architecture of a single layer net-work to simplify the protocol of the net-work between the linac, the booster synchrotron and the storage ring. A VME computer of 68030 is put in every modulator of the linac, and all control signals are gathered to the nearest VME computer. OS-9 and OS-9000 are on trial for investigation of the performances. TCP/IP is tentatively chosen as a protocol of the net-work, but we expect that MAP/MMS makes a high performance, and we are preparing a test of it.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD13

About •

Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

S03SRD12

Design of SPring-8 Control System

151

T. Wada, T. Kumahara, H. Yonehara, H. Yoshikawa, T. Masuda, W. Zhen
JAERI-RIKEN/Spring-8 Project Team, Tokyo, Japan

The control system of SPring-8 facility is designed. A distributed computer system is adopted with a three-hierarchy levels. All the computers are linked by computer networks. The network of upper level is a high-speed multi-media LAN such as FDDI which links sub-system control computers, and middle are Ethernet or MAP networks which link front end processors (FEP) such as VME system. The lowest is a field level bus which links VME and controlled devices. Workstations (WS) or X-terminals are useful for man-machine interfaces. For operating system (OS), UNIX is useful for upper level computers, and real-time OS’s for FEP’s. We will select hardwares and OS of which specifications are close to international standards. Since recently the cost of software has become higher than that of hardware, we introduce computer aided tools as many as possible for program developments.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD12

About •

Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)