ICALEPCS1991 - List of Authors (Shering, G.)

Paper	Title	Page
S03SRD01	Controls for the CERN Large Hadron Collider (LHC)	100
	K.H. Kissler, F. Perriollat, M. Rabany, G. Shering CERN, Meyrin, Switzerland
	CERN’s planned large superconducting collider project presents several new challenges to the Control System. These are discussed along with current thinking as to how they can be met. The high field superconducting magnets are subject to "persistent currents" which will require real time measurements and control using a mathematical model on a 2-10 second time interval. This may be realised using direct links, multiplexed using TDM, between the field equipment and central servers. Quench control and avoidance will make new demands on speed of response, reliability and surveillance. The integration of large quantities of industrially controlled equipment will be important. Much of the controls will be in common with LEP so a seamless integration of LHC and LEP controls will be sought. A very large amount of new high-tech equipment will have to be tested, assembled and installed in the LEP tunnel in a short time. The manpower and cost constraints will be much tighter than previously. New approaches will have to be found to solve many of these problems, with the additional constraint of integrating them into an existing framework.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD01
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)

S04SRS02	A PC Based Control System for the CERN ISOLDE Separators	162
	R. Billinge, A. Bret, I. Deloose, A. Pace, G. Shering CERN, Meyrin, Switzerland
	The control system of the two isotope separators of CERN, named ISOLDE, is being completely redesigned with the goal of having a flexible, high performance and inexpensive system. A new architecture that makes heavy use of the commercial software and hardware available for the huge Personal Computer (PC) market is being implemented on the 1700 geographically distributed control channels of the separators. 8 MS-DOS™ i386-based PCs with about 80 acquisition/control boards are used to access the equipments while 3 other PCs running Microsoft Windows™ and Microsoft Excel™ are used as consoles, the whole through a Novell™ Local Area Network with a PC Disk Server used as a database. This paper describes the interesting solutions found and discusses the reduced programming workload and costs that are expected to build the system before the start of the separators in March 1992.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS02
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)

S13MMI03	The Replacement of Touch-Terminal Consoles of the CERN Antiproton Accumulator Complex (AAC) by Office PCs As Well as X-Windows Based Workstations	456
	V. Chohan, I. Deloose, G. Shering CERN, Geneva, Switzerland
	With aging hardware and expensive maintenance and replacement possibilities, it was decided to upgrade the CERN Antiproton Accumulator Complex (AAC) touch terminal consoles with modern hardware. With significant amount of operational application software developed with touch terminals over 10 years, the philosophy adopted was to attempt a total emulation of these console functions of touch actions, graphics display as well as simple keyboard terminal entry onto the front-end computer controlling the AAC. The PC based emulation by mouse and multiple windows under MS-DOS and later, under the Windows 3 environment was realized relatively quickly; the next stage was therefore to do the same on the Unix platform using software based on X-Windows. The communications channel was established using the TCP/IP socket library. This paper reviews this work up to the operational implementation for routine control room usage for both these solutions.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI03
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

Controls for the CERN Large Hadron Collider (LHC)

100

K.H. Kissler, F. Perriollat, M. Rabany, G. Shering
CERN, Meyrin, Switzerland

CERN’s planned large superconducting collider project presents several new challenges to the Control System. These are discussed along with current thinking as to how they can be met. The high field superconducting magnets are subject to "persistent currents" which will require real time measurements and control using a mathematical model on a 2-10 second time interval. This may be realised using direct links, multiplexed using TDM, between the field equipment and central servers. Quench control and avoidance will make new demands on speed of response, reliability and surveillance. The integration of large quantities of industrially controlled equipment will be important. Much of the controls will be in common with LEP so a seamless integration of LHC and LEP controls will be sought. A very large amount of new high-tech equipment will have to be tested, assembled and installed in the LEP tunnel in a short time. The manpower and cost constraints will be much tighter than previously. New approaches will have to be found to solve many of these problems, with the additional constraint of integrating them into an existing framework.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD01

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)

S04SRS02

A PC Based Control System for the CERN ISOLDE Separators

162

R. Billinge, A. Bret, I. Deloose, A. Pace, G. Shering
CERN, Meyrin, Switzerland

The control system of the two isotope separators of CERN, named ISOLDE, is being completely redesigned with the goal of having a flexible, high performance and inexpensive system. A new architecture that makes heavy use of the commercial software and hardware available for the huge Personal Computer (PC) market is being implemented on the 1700 geographically distributed control channels of the separators. 8 MS-DOS™ i386-based PCs with about 80 acquisition/control boards are used to access the equipments while 3 other PCs running Microsoft Windows™ and Microsoft Excel™ are used as consoles, the whole through a Novell™ Local Area Network with a PC Disk Server used as a database. This paper describes the interesting solutions found and discusses the reduced programming workload and costs that are expected to build the system before the start of the separators in March 1992.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS02

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)

S13MMI03

The Replacement of Touch-Terminal Consoles of the CERN Antiproton Accumulator Complex (AAC) by Office PCs As Well as X-Windows Based Workstations

456

V. Chohan, I. Deloose, G. Shering
CERN, Geneva, Switzerland

With aging hardware and expensive maintenance and replacement possibilities, it was decided to upgrade the CERN Antiproton Accumulator Complex (AAC) touch terminal consoles with modern hardware. With significant amount of operational application software developed with touch terminals over 10 years, the philosophy adopted was to attempt a total emulation of these console functions of touch actions, graphics display as well as simple keyboard terminal entry onto the front-end computer controlling the AAC. The PC based emulation by mouse and multiple windows under MS-DOS and later, under the Windows 3 environment was realized relatively quickly; the next stage was therefore to do the same on the Unix platform using software based on X-Windows. The communications channel was established using the TCP/IP socket library. This paper reviews this work up to the operational implementation for routine control room usage for both these solutions.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI03

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)