| Paper | Title | Other Keywords | Page |
|---|---|---|---|
| S01SRA01 | A Users View of the SPS and LEP Control Systems | controls, operation, network, MMI | 1 |
|
|||
| Every accelerator has a control system; at present the SPS has two, both of which are needed to run the machine. Consequently a user of the SPS I LEP complex has to be concurrently familiar with three control systems. While this situation brings problems it allows, even forces, comparison between the different systems, which in tum enriches the user viewpoint. This paper assesses the SPS and LEP control systems from the point of view of the user, who may be an equipment specialist, operator, accelerator physicist or combinations thereof. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S01SRA01 | ||
| 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) | ||
| S01SRA07 | The GSI Control System | controls, interface, operation, status | 27 |
|
|||
| The GSI accelerator facility consists of an old linac and two modern machines, a synchrotron and a storage ring. It is operated from one control room. Only three operators at a time have to keep it running with only little assistance from machine specialists in daytime. So the control tools must provide a high degree of abstraction and modeling to relieve the operators from details on the device level. The program structures to achieve this are described in this paper. A coarse overview of the control architecture is given. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S01SRA07 | ||
| 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) | ||
| S01SRA09 | Accelerator Control Systems in China | controls, operation, interface, status | 35 |
|
|||
| Three accelerator facilities were built in the past few years, the 2.8 GeV electron positron collider BEPC, the heavy ion SSC cyclotron accelerator HIRFL and the 800 MeV synchrotron radiation storage ring HESYRL. Aimed at different research areas, they represent a new generation of accelerator in China. This report describes the design philosophy, the structure, performance as well as future improvements of the control systems of the these facilities. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S01SRA09 | ||
| 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) | ||
| S01SRA12 | Control System for a Heavy-Ion Accelerator Complex K4 - K10 | controls, real-time, interface, hardware | 47 |
|
|||
| Control systems for newly created accelerators, perhaps for the first time, may be designed almost only around international standards for communication and control techniques. This is also true for the project of a control system for the accelerator complex K4-K10 at the Joint Institute for Nuclear Research Dubna. Nevertheless, open systems architecture with construction principles being essential for modem systems of such big devices as particle accelerators leaves designers enough possibilities for solving even very sophisticated problems. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S01SRA12 | ||
| 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) | ||
| S02SRU01 | Future Directions in Controlling the LAMPF-PSR Accelerator Complex at Los Alamos National Laboratory | controls, interface, hardware, network | 50 |
|
|||
|
Funding: Work supported by the US Department of Energy. Four interrelated projects are underway whose purpose is to migrate the LAMPF-PSR Accelerator Complex control systems to a system with a common set of hardware and software components. Project goals address problems in performance, maintenance and growth potential. Front-end hardware, operator interface hardware and software, computer systems, network systems and data system software are being simultaneously upgraded as part of these efforts. The efforts are being coordinated to provide for a smooth and timely migration to a client-server model-based data acquisition and control system. An increased use of distributed intelligence at both the front-end and the operator interface is a key element of the projects. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU01 | ||
| 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) | ||
| S02SRU02 | Common Control System for the CERN Accelerators | controls, interface, network, operation | 54 |
|
|||
| The PS and SPS Accelerator Control Systems are becoming obsolete and need urgent rejuvenation. After a control users forum, where users expressed their needs, two main Working Groups were set up, consisting of Control and Equipment Specialists and experienced Machine Operators. One Working Group studied the architecture and the front-end processing and the other a common approach to the application software needed to run the CERN accelerator complex. The paper presents the technical conclusions of their work and the policy to implement it, taking into account the necessity to operate both machines without interruption of the Physics Program. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU02 | ||
| 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) | ||
| S02SRU03 | New Control Architecture for the SPS Accelerator at CERN | controls, network, real-time, interface | 59 |
|
|||
| The Control System for the 450 GeV proton accelerator SPS at CERN was conceived and implemented some 18 years ago. The 16 Bit minicomputers with their proprietary operating system and interconnection with a dedicated network do not permit the use of modern workstations, international communication standards and industrial software packages. The upgrading of the system has therefore become necessary. After a short review of the history and the current state of the SPS control system, the paper describes how CERN’s new control architecture, which will be common to all accelerators, will be realized at the SPS. The migration path ensuring a smooth transition to the final system is outlined. Once the SPS upgrade is complete and following some enhancements to the LEP control system, the operator in the SPS/LEP control center will be working in a single uniform control environment. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU03 | ||
| 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) | ||
| S02SRU04 | The Next Generation Control System of GANIL | controls, operation, real-time, database | 65 |
|
|||
| The existing computer control system of GANIL is being renewed to fulfil the increasing requirements of the accelerator operation. This medium term major improvement is aiming at providing the physicists with a wider range of ion beams of higher quality under more flexible and reliable conditions. This paper gives a short description of the new control system envisioned. It consists of a three layer distributed architecture federating a VAX6000-410NMS host computer, a real time control system made up of a dual host VAX3800 and workstation based operator consoles, and at the frontend segment: VME and CAMAC processors running under the VAXELN operating system, and programmable logic controllers for local controls. The basic issues with regard to architecture, human interface, information management, etc. are discussed. Lastly, first implementations and operation results are presented. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU04 | ||
| 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) | ||
| S02SRU05 | Replacement of the ISIS Control System | controls, hardware, Ethernet, interface | 71 |
|
|||
| In operation since 1985, ISIS is the world’s most powerful pulsed spallation neutron source. The decision has been taken to replace the existing ISIS control system, which has been in use for over ten years. The problems of such a project, given the legacy of processor specific hardware and software are discussed, along with the problems associated with incorporating existing interface hardware into any new system. Present progress using commercial workstation based control software is presented with, an assessment of the benefits and pitfalls of such an approach. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU05 | ||
| 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) | ||
| S02SRU06 | Upgrading the Control System for the Accelerators at The Svedberg Laboratory | controls, cyclotron, interface, hardware | 78 |
|
|||
| Two accelerators at The Svedberg Laboratory in Uppsala, the Gustaf Werner cyclotron and the CELSIUS ring, will get a new control system. At present both the cyclotron and the ring have their own control systems based on S99 and PDP11 minicomputers respectively. There are also a number of subsystems which are controlled separately from the standalone PC based consoles (ECR ion source, electron cooler, vacuum system). The goal of the rejuvenation is to integrate all existing control systems and provide the new system with an uniform operators interface based on workstations. The obsolete S99 microcomputers will be substituted with a VME system and all subsystems will be connected to the Ethernet. The upgrade strategy enabling the transformation of the system without any long shut-down period is discussed. Hardware and software planned for the upgrade is presented together with a discussion of expected problems. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU06 | ||
| 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) | ||
| S02SRU07 | Upgrading the BEPC Control System | controls, power-supply, operation, distributed | 82 |
|
|||
| The BEPC control system has been put into operation and operated normally since the end of 1987. Three years’s experience shows this system can satisfy basically the operation requirements, also exhibits some disadvantages a raised from the original centralized system architecture based on the VAX-VCC-CAMAC, such as slow response, bottle neck of VCC, less CPU power for control etc. This paper describes the method and procedure for upgrading the BEPC control system which will be based on DECnet and DEC-WS, and thus intend to upgrade the control system architecture from the centralized to the distributed and improve the integral system performance. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU07 | ||
| 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) | ||
| S02SRU08 | The Rejuvenation of TRISTAN Control System | controls, hardware, real-time, operation | 85 |
|
|||
| The current TRISTAN accelerator control system uses CAMAC as a front end electronics, and they are controlled by twenty five Hitachi minicomputer HIDIC 80’s which are linked with an N-to-N token ring network. After five years from now, these computers must be replaced. This is because of the life time of control system and we have to cope with the requirements imposed by our future project such as the KEK B-Factory and the main ring photon factory projects. The rejuvenation of this control has to be done under some constraints such as the lack of manpower, limited time and financing. First we review the problems of current control system, then the philosophy of the new generation control system is presented. Finally it is discussed how to move to the new generation control system from the current TRISTAN control system. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU08 | ||
| 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) | ||
| S02SRU09 | Upgrade Plan for the Control System of the KEK e⁻/e⁺ Linac | controls, network, linac, operation | 89 |
|
|||
| The KEK 2.5-GeV linac has been operating since 1982. However, in order to maintain reliable operation, the control system should be upgraded within a few years. We plan to replace the minicomputers and the main network connecting them. Thus, the architecture of the control software will also be revised. In the new system we should adopt software and hardware standards. In the next control system we will employ the TCP/IP (DARPA) protocol suite for the main network and Unix workstations to replace the minicomputers. For connections to the local controllers, VME bus (IEEE 1014) will be utilized. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU09 | ||
| 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) | ||
| S02SRU11 | A New Architecture for Fermilab’s Cryogenic Control System | controls, cryogenics, interface, network | 96 |
|
|||
|
In order to achieve design energy in the Tevatron, the magnet system will be operated at lower temperatures. The increased requirements of operating the Tevatron at lower temperatures necessitated a major upgrade to the both the hardware and software components of the cryogenic control system. The new architecture is based on a distributed topology which couples Fermilab designed I/O subsystems to high performance, 80386 execution processors via a variety of networks including: Arcnet, iPSB, and token ring.
Operated by the Universities Research Association Inc., under contract with the U.S. Dept. of Energy. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU11 | ||
| 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) | ||
| S03SRD01 | Controls for the CERN Large Hadron Collider (LHC) | controls, injection, database, power-supply | 100 |
|
|||
| 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) | ||
| S03SRD04 | Standards and the Design of the Advanced Photon Source Control System | controls, network, interface, linac | 116 |
|
|||
|
Funding: Work supported by U.S. Department of Energy, Office of Basic Energy Sciences under Contract No. W-31-109-ENG-38. The Advanced Photon Source (APS), now under construction at Argonne National Laboratory (ANL), is a 7 GeV positron storage ring dedicated to research facilities using synchrotron radiation. This ring, along with its injection accelerators is to be controlled and monitored with a single, flexible, and expandable control system. In the conceptual stage the control system design group faced the challenges that face all control system designers: (1) to force the machine designers to quantify and codify the system requirements, (2) to protect the investment in hardware and software from rapid obsolescence, and (3) to find methods of quickly incorporating new generations of equipment and replace obsolete equipment without disrupting the existing system. To solve these and related problems, the APS control system group made an early resolution to use standards in the design of the system. This paper will cover the present status of the APS control system as well as discuss the design decisions which led us to use industrial standards and collaborations with other laboratories whenever possible to develop a control system. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD04 | ||
| 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) | ||
| S03SRD06 | Centralized Multiprocessor Control System for the Frascati Storage Rings DA{Φ}NE | controls, interface, LabView, hardware | 128 |
|
|||
| We describe the status of the DANTE (DA¿NE New Tools Environment) control system for the new DA{Φ}NE {Φ}-factory under construction at the Frascati National Laboratories. The system is based on a centralized communication architecture for simplicity and reliability. A central processor unit coordinates all communications between the consoles and the lower level distributed processing power, and continuously updates a central memory that contains the whole machine status. We have developed a system of VME Fiber Optic interfaces allowing very fast point to point communication between distant processors. Macintosh II personal computers are used as consoles. The lower levels are all built using the VME standard. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD06 | ||
| 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) | ||
| S03SRD07 | The Operator View of the Superconducting at LNS Catania | controls, hardware, cyclotron, network | 131 |
|
|||
| The upper level of a distributed control system designed for the superconducting Cyclotron (SC), will be discussed. In particular, we will present a detailed description of the operator view of this accelerator along with the tools for I/O points management, data rappresentations, data archiving and retrieval. A dedicated program, developed by us, working under X-Window will be described as a starting point for a new man-machine interface approach in small laboratories opposed to the first industrial available packages. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD07 | ||
| 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) | ||
| S03SRD08 | The UNK Control System | controls, cryogenics, network, interface | 134 |
|
|||
| The IHEP proton Accelerating and Storage Complex (UNK) includes in its first stage a 400 GeV conventional and a 3000 GeV superconducting ring placed in the same underground tunnel of 20.7 km circumference. The beam will be injected into UNK from the existing 70 GeV accelerator U-70. The experimental programme which is planned to start in 1995, will include 3000 GeV fixed target and 400-3000 GeV colliding beams physics. The size and complexity of the UNK dictate a distributed multiprocessor architecture of the control system. About 4000 of 8/16 bit controllers, directly attached to the UNK equipment will perform low level control and data acquisition tasks. The equipment controllers will be connected via the MIL-1553 field bus to VME based 32-bit front end computers. The TCP/IP network will interconnect front end computers in the UNK equipment buildings with UNIX workstations and servers in the Main Control Room. The report presents the general architecture and current status of the UNK control. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD08 | ||
| 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) | ||
| S03SRD09 | Moscow University Race-Track Microtron Control System: Ideas and Development | controls, network, interface, microtron | 140 |
|
|||
| Moscow University race-track microtron (RTM) control system is a star-shape network of LSI-11 compatible microcomputers. Each of them is connected with RTM systems via CAMAC; optical fiber coupling is also used. Control system software is designed on Pascal-1, supplemented with real time modules and Macro. A unified real time technique and re-enterable data acquisition drivers allow to simplify development of control drivers and algorithms. Among the latter three main types are used: DDC methods, those, based on optimization technique and algorithms, applying models of microtron’s systems. Man-machine interface is based on concept of the "world of accelerator". It supports means to design, within hardware possibilities, various computer images of the RTM. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD09 | ||
| 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) | ||
| S03SRD10 | Present Status of Control System at the SRRC | controls, database, synchrotron, interface | 143 |
|
|||
| The modern control technique was used to design and set up a control system for the synchrotron radiation facilities at the synchrotron radiation research center (SRRC). This control system will be finally to operate the dedicated machine to provide the 1.3 GeV synchrotron radiation light. The control system will control and monitor the components of storage ring, beam transport and injector system. The concept of the philosophy is to design a unique, simple structure and object-oriented graphic display control system. The SRRC control system has the major features such as two level architecture, high speed local area network with high level protocol, high speed microprocessor based VME crate, object-oriented high performance control console and graphic display. The computer hardware system was set up and tested. The software in top level computers which include database server, network server, upload program, data access program, alarm checking and display, as well as graphics user interface (GUI) program were developed and tested. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD10 | ||
| 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) | ||
| S03SRD11 | Status Report on Control System Development for PLS | controls, database, network, interface | 147 |
|
|||
|
Funding: Work supported by Pohang Iron & Steel Co., Ltd. (POSCO) and Ministry of Science and Technology (MOST), Government of Republic of Korea. Emphasizing reliability and flexibility, hierarchical architecture with distributed computers have been designed into the Pohang Light Source (PLS) computer control system. The PLS control system has four layers of computer systems connected via multiple data communication networks. This paper presents an overview of the PLS control system. The accelerator control system provides means for accessing all machine components so that the whole system could be monitored and controlled remotely. These tasks include setting magnet currents, collecting status data from the vacuum subsystem, taking orbit data with beam position monitors, feedback control of electron beam orbit, regulating the safety interlock monitors, and so forth. To design a control system which can perform these functions satisfactorily, certain basic design requirements must be fulfilled. Among these are reliability, capability, expa.nsibility, cost control, and ease of operation. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD11 | ||
| 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) | ||
| S03SRD13 | Design of a Control System of the Linac for SPring-8 | linac, controls, network, synchrotron | 154 |
|
|||
| 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) | ||
| S04SRS01 | Digital Control of the Superconducting Cavities for the LEP Energy Upgrade | cavity, controls, operation, klystron | 159 |
|
|||
| The superconducting (SC) cavities for the LEP200 energy upgrade will be installed in units of 16 as for the present copper cavity system. Similar equipment will be used for RF power generation and distribution, for the low level RF system and for digital control. The SC cavities and their associated equipment however require different interface hardware and new control software. To simplify routine operation control of the SC cavity units is made to resemble as closely as possible that of the existing units. Specific controls for the SC cavities at the equipment level, the facilities available and the integration of the SC cavity units into the LEP RF control system are described. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS01 | ||
| 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) | ||
| S04SRS04 | Magnet Test Facility Control System for Superconducting Magnets of UNK | controls, MMI, cryogenics, dipole | 171 |
|
|||
| An UNK Magnet Test Facility (MTF) is being constructed to provide cryogenic, electrical and magnet tests of superconducting (SC) magnets of UNK. The main parts of it are: The cryogenic system consisting in its turn of the central liquefier, ten satellite refrigerators, two compressors, purification system and transfer lines. The central liquefier supplies the satellite refrigerators with liquid helium. The liquefier is manufactured according to the scheme incorporating re-cooling by liquid nitrogen, two turbine expanders and a wet expander, - Four 8 kA, 24 V, ramped Power Supplies (PS) for cold testing of SC magnets, two 3 kA PS’s for instrumentation testing and calibration. Test facility in its turn consisting of: a) two dipoles and one quad benches for warm measurements; b) eight dipoles and two quad benches for cold measurements; c) two benches for instrumentation. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS04 | ||
| 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) | ||
| S04SRS06 | Instrumentation & Control System For PLS-IM-T 60 MeV LINAC | controls, linac, klystron, interface | 177 |
|
|||
| The PLS/ MT is a 60 MeV LINAC as a preinjector for 2 GeV LINAC of PLS project. The instrumentation and control system have been designed under the institutional collaboration between the IHEP (Beijing, China) and POSTECH (Pohang, Korea). So far, the I&C system are being set up nowadays at the POSTECH of Pohang. This paper describes its major characteristics and present status. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS06 | ||
| 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) | ||
| S04SRS07 | Multi-Microprocessor Control of the Main Ring Magnet Power Supply of the 12 GeV KEK Proton Synchrotron | controls, power-supply, injection, operation | 180 |
|
|||
| A general description of the computer control system of the KEK 12 GeV PS main ring magnet power supply is given, including its peripheral devices. The system consists of the main HIDIC-V90/2S CPU and of the input and output controllers HISEC-04M. The main CPU, supervised by UNIX, provides the man-machine interfacing and implements the repetitive control algorithm to correct for any magnet current deviation from reference. Two sub-CPU’s are linked by a LAN and supported by a real time multi-task monitor. The output process controller distributes the control patterns to 16-bit DAC’s, at 1.67 ms clock period in synchronism with the 3-phase ac line systems. The input controller logs the magnet current and voltage, via 16-bit ADC’s at the same clock rate. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS07 | ||
| 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) | ||
| S05SRN01 | A Control System for a Free Electron Laser Experiment | controls, experiment, data-acquisition, operation | 195 |
|
|||
| The general layout of a control and data acquisition system for a Free Electron Laser experiment will be discussed. Some general considerations about the requirements and the architecture of the whole system will be developed. The aim or the ELFA (Electron Laser Facility) experiment is to study the physics of a single pass FEL amplifier operating in the high gain Compton regime using a short electron pulse beam. The experimental purpose is the production of high peak power (0.3-1 GW) of microwave radiation, with a basic wavelength of λr=3 mm, and the possibility of tuning from λr= 1 cm to λr=0.1 mm. In order to achieve this goal an electron beam of very high current (400 A) in short pulses (6 cm) and with a maximum energy around 10 MeV will be injected into the wiggler midplane. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN01 | ||
| 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) | ||
| S05SRN03 | Control Software for the ESO VLT | controls, distributed, operation, database | 202 |
|
|||
| The Very Large Telescope (VLT) project of ESO consists of an array of four optical telescopes of 8 m diameter, to be installed at a new site in the Atacama desert in Chile starting in 1995. The control software is completely distributed, being based on LANs interconnecting microprocessors and workstations, where several users and operators will be active at the same time. Microprocessors are used in a variety of control functions, including the active control of the shape of the main mirror and compensation for atmospheric turbulence. Dedicated links and antennas are planned for direct communication and remote observation from various European centers. The main concepts and novelties of the software design are explained. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN03 | ||
| 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) | ||
| S05SRN04 | Distributed Control and Data Acquisition for the EUROGAM Gamma Ray Spectrometer | controls, detector, interface, data-acquisition | 208 |
|
|||
| EUROGAM is an Anglo/French Gamma Ray Detector which will alternate between the Tandem Van der Graaf at Daresbury and the Vivitron at Strasbourg. Because of the need to conform to the standards of Laboratories in two different countries, and the very sensitive nature of electronics for Germanium Gamma Ray telescopes. the newly emerging VXIbus (VMEbus EXtensions for Instrumentation) was chosen as the basis for control and data acquisition. This entailed a major programme of development for both the signal processing front end modules for Germanium and Bismuth Germanate detectors, and also for the hardware and software management of resources from within the VXI environment. The paper will concentrate mainly on the latter areas. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN04 | ||
| 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) | ||
| S05SRN05 | A Control System of the Nobeyama Millimeter Array | controls, interface, status, Ethernet | 214 |
|
|||
| We have developed a control system of the Nobeyama Millimeter Array which is a radio interferometer for astronomical observations at millimeter wavelengths. The system consists of three sub-systems (MANAGER, ENGINE, and STATUS CONTROLLER). Observers conduct their observations with MANAGER sub-system, which run on a UNIX workstation. ENGINE is a rigid system on an IBM compatible mainframe. It controls the accurate tracking of astronomical radio objects, and acquires a large amount of observed data from a receiver backend. STATUS CONTROLLER consists of several personal computers which control and monitor the receiver system. These sub-systems are connected with an ethernet. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN05 | ||
| 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) | ||
| S05SRN10 | Hard-and Software for Measurement and Control of the Pulse Thermonuclear Installation | controls, hardware, experiment, Ethernet | 235 |
|
|||
| This paper describes control and measuring systems of the pulse thermonuclear installation "Angara-5". The "Angara-5" operates in a monopulse mode. It takes a long time to prepare the installation to the work shot. The main information flow about the installation output parameters and the target processes comes for 10-7-10-8 sec. The measuring-control equipment has a multi-level hierarchy structure where the lower level is local systems controlled by own computers. Measuring systems contain waveform digitizers of different types. The supervisor console system realizes the communications with the local systems, as well as the data acquisition, processing and storage. Hardware and software structures are given. Careful equipment shielding and grounding have provided level of noise 30 mV. Fast signals processing features are discussed. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN10 | ||
| 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) | ||
| S05SRN11 | A Control & Data Acquisition System for Photoelectron Spectroscopy Experiment Station at Hefei National Synchrotron Radiation Laboratory | interface, experiment, controls, electron | 239 |
|
|||
| The paper describes system configuration and software design. The system has the following features: flexible user interface, succinct control levels, strict protection and high intelligence. It can run EDC, CFS, CIS experiment modes very conveniently with SR light source, Its construction and design idea of the system can be applied to other data acquisition systems. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN11 | ||
| 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) | ||
| S06SA02 | Ideas on a Generic Control Systems Based on the Experience on the 4 LEP Experiments Control System | controls, database, experiment, detector | 246 |
|
|||
| Most of the large slow control systems in the LEP collider experiments are distributed heterogeneous and multi-standard. But in spite of the appearances, they have a lot in common. From our direct experience on the L-3 slow control system and from the informations we obtained on the 3 other LEP experiments control systems we have come to the conclusion that it should be possible to build a Generic Control Package from which any control system could be derived. This software package is entirely based on relational databases and is intended to provide all the necessary tools to build a modular, coherent, easy to update and to maintain control system. Among other things this package should include user friendly interfaces, expert systems, and powerful graphic monitoring and control tools. This paper will present our general ideas about the realization of such a package. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S06SA02 | ||
| 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) | ||
| S06SA03 | The LEP Alarm System | controls, database, interface, operation | 254 |
|
|||
| Unlike alarm systems for previous accelerators, the LEP alarm system caters not only for the operation of the accelerator but also for technical services and provides the direct channel for personnel safety. It was commissioned during 1989 and has seen a continued development up to the present day. The system, comprising over 50 computers including 5 different platforms and 4 different operating systems, is described. The hierarchical structure of the software is outlined from the interface to the equipment groups, through the front end computers to the central server, and finally to the operator consoles. Reasons are given for choosing a conventional, as opposed to a ’knowledge based’ approach. Finally, references are made to a prototype real time expert system for surveying the power converters of LEP, which was conducted during 1990 as part of the alarm development program. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S06SA03 | ||
| 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) | ||
| S06SA04 | The Software for the CERN LEP Beam Orbit Measurement System | pick-up, operation, network, hardware | 260 |
|
|||
| The Beam Orbit Measurement (BOM) system of LEP consists of 504 pickups, distributed all around the accelerator, that are capable of measuring the positions of the two beams. Their activity has to be synchronised, and the data produced by them have to be collected together, for example to form a "closed orbit measurement" or a "trajectory measurement". On the user side, several clients can access simultaneously the results from this instrument. Au automatic acquisition mode, and an "on request" one, can run in parallel. This results in a very flexible and powerful system. The functionality of the BOM system is fully described, as well as the structure of the software processes which constitute the system, and their interconnections. Problems solved during the implementation are emphasized. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S06SA04 | ||
| 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) | ||
| S07IC01 | Interfacing Industrial Process Control Systems to LEP/LHC | controls, cryogenics, interface, operation | 269 |
|
|||
| Modern industrial process control systems have developed to meet the needs of industry to increase the production while decreasing the costs. Although particle accelerators designers have pioneered in control systems during the seventies, it has now become possible to them to profit of industrial solutions in substitution of, or in complement with the more traditional home made ones. Adapting and integrating such industrial systems to the accelerator control area will certainly benefit to the field in terms of finance, human resources and technical facilities offered off-the-shelf by the widely experienced industrial controls community; however this cannot be done without slightly affecting the overall accelerator control architecture. The paper briefly describes the industrial controls arena and takes example on an industrial process control system recently installed at CERN to discuss in detail the related choices and issues. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S07IC01 | ||
| 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) | ||
| S07IC02 | SPS/LEP Beam Transfer Equipment Control Using Industrial Automation Components | controls, hardware, interface, electron | 274 |
|
|||
| Several control systems for SPS and LEP beam transfer equipment have to be commissioned in the near future. Tools for fast software development, easy maintenance and modifications, compliance with industrial standards, and independence of specific suppliers are considered to be essential. A large fraction of the systems can be realized using off-the-shelf industrial automation components like industrial I/O systems, programmable logic controllers, or diskless PCs. Specific electronics built up in G-64 can be integrated. Diskless systems running UNIX and X Windows are foreseen as process controllers and local access media. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S07IC02 | ||
| 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) | ||
| S07IC04 | A Front-End System for Industrial Type Controls at the SSC | controls, interface, hardware, database | 283 |
|
|||
|
The SSC control system is tasked with coordinating the operation of many different accelerator subsystems, a number of which use industrial type process controls. The design of a high-performance control system front end is presented which serves both as a data concentrator and a distributed process controller. In addition it provides strong support for a centra1ized control system architecture, allows for regional control systems, and simplifies the construction of inter-subsystem controls. An implementation of this design will be discussed which uses STD-Bus for accelerator hardware interfacing, a time domain multiplexing (TDM) communications transport system, and a modified reflective memory interface to the rest of the control system.
Operated by the Universities Research Association, Inc., for the U.S. Department of Energy under Contract No. DE-AC02-89ER40486. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S07IC04 | ||
| 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) | ||
| S07IC05 | The Influence of Industrial Applications on a Control System Toolbox | database, controls, hardware, network | 287 |
|
|||
| V system is as an open, advanced software application toolbox for rapidly creating fast, efficient and cost-effective control and data-acquisition systems. V system’s modular architecture is designed for single computers, networked computers and workstations running under VAX/VMS or VAX/ELN. At the heart of Vsystem lies Vaccess, a user extendible real-time database and library of access routines. The application database provides the link to the hardware of the application and can be organized as one database or separate databases installed in different computers on the network. Vsystem has found application in charged particle accelerator control, tokamak control, and industrial research. as well as its more recent industrial applications. This paper describes the broad features of Vsystem and the influence that recent industrial applications have had on the software. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S07IC05 | ||
| 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) | ||
| S08NC01 | ARCNET as a Field Bus in the Fermilab Linac Control System | network, controls, linac, hardware | 291 |
|
|||
|
Funding: Work supported by the U.S. Department of Energy under contract No. DE-AC02-76CHO3000 Data acquisition hardware in accelerator control systems is connected by a field bus to networked computers that supply data to consoles. Industry attempts to standardize on a low level field bus have not succeeded in providing a single well supported bus. This paper describes a data acquisition chassis that connects to VMEbus computers using ARCNET, a full featured token-passing local area network, as the field bus. The performance of this technique as implemented in the control system for the Fermilab Linac is given. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC01 | ||
| 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) | ||
| S08NC02 | Multi-Processor Network Implementations in Multibus II and VME | network, controls, distributed, interface | 295 |
|
|||
|
ACNET (Fermilab Accelerator Controls Network), a proprietary network protocol, is implemented in a multi-processor configuration for both Multibus II and VME. The implementations are contrasted by the bus protocol and software design goals. The Multibus II implementation provides for multiple processors running a duplicate set of tasks on each processor. For a network connected task, messages are distributed by a network round-routed for each task by user-callable commands. The VME implementation provides for multiple processors running one task across all processors. The process can either be fixed to a particular processor or dynamically allocated to an available processor depending on the scheduling algorithm of the multi-processing operating system.
Operated by Universities Research Association for the Department of Energy. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC02 | ||
| 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) | ||
| S08NC03 | A Distributed Design for Monitoring Logging and Replaying Device Readings at LAMPF | controls, network, interface, distributed | 299 |
|
|||
|
Funding: Work supported by the U.S. Department of Energy As control of the Los Alamos Meson Physics linear accelerator and Proton Storage Ring moves to a more distributed system, it has been necessary to redesign the software which monitors, logs, and replays device readings throughout the facility. The new design allows devices to be monitored and their readings logged locally on a network of computers. Control of the monitoring and logging process is available throughout the network from user interfaces which communicate via remote procedure calls with server processes running on each node which monitors and records device readings. Similarly, the logged data can be replayed from anywhere on the network. Two major requirements influencing the final design were the need to reduce the load on the CPU of the control machines, and the need for much faster replay of the logged device readings. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC03 | ||
| 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) | ||
| S08NC06 | Time and Load Measuring in the SPS/LEP Control System | network, controls, timing, hardware | 310 |
|
|||
| This paper describes the experiences with the SPS/LEP Control System during its first operational days from the communication point of view. The results show difference between hardware possibility of the local communication based on the modem technology and the possibility to use it by PC machines. There is also several figures describing the activity on the communication lines. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC06 | ||
| 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) | ||
| S08NC07 | The ELETTRA Field Highway System | controls, interface, network, hardware | 313 |
|
|||
| ELETTRA is a third generation Synchrotron Light Source under construction in Trieste (Italy); it consists of a full energy linac injector and a storage ring with beam energies between 1.5 and 2 GeV. The ELETTRA control system has a distributed architecture, hierarchically divided into three layers of computers; two network levels provide communication between the adjacent computer layers. The field highway adopted for the connection of the middle-layer local process computers with the bottom-layer equipment interface units is the MIL-1553B multidrop highway. This paper describes the hardware configuration and the main communication services developed on the MIL-15538 field highway for accelerator control. As an additional feature, typical LAN utilities have been added on top of the basic MIL-15538 communication software allowing remote login and file transfer; these tools are currently used for software development in our laboratory. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC07 | ||
| 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) | ||
| S08NC10 | Network Performance for Graphical Control Systems | network, database, controls, real-time | 326 |
|
|||
| Vsystem is a toolbox for building graphically-based control systems. The real-time database component, Vaccess, includes all the networking support necessary to build multi-computer control systems. Vaccess has two modes of database access, synchronous and asynchronous. Vdraw is another component of Vsystem that allows developers and users to develop control screens and windows by drawing rather than programming. Based on Xwindows, Vsystem provides the possibility of running Vdraw either on the workstation with the graphics or on the computer with the database. We have made some measurements on the cpu loading, elapsed time and the network loading to give some guidance in system configuration performance. It will be seen that asynchronous network access gives large performance increases and that the network database change notification protocol can be either more or less efficient than the X-window network protocol, depending on the graphical representation of the data. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC10 | ||
| 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) | ||
| S08NC11 | A New Approach in Development of Data Flow Control and Investigation System for Computer Networks | network, controls, experiment, database | 329 |
|
|||
| Seven years ago we started the development of a new control system for an experimental electron accelerator in our institute. This paper describes a new approach in development of data flow control and investigation system for computer networks. This approach was developed and applied in the Moscow Radiotechnical Institute for control and investigations of Institute computer network. It allowed us to solve our network current problems successfully. Description of our approach is represented below along with the most interesting results of our work. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC11 | ||
| 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) | ||
| S10TS07 | The Timing System of the RFX Nuclear Fusion Experiment | timing, hardware, experiment, operation | 367 |
|
|||
| The RFX Nuclear Fusion Experiment in Padova, Italy, employs a distributed system to produce precision trigger signals for the fast control of the experiment and for the experiment-wide synchronization of data acquisition channels. The hardware of the system is based on a set of CAMAC modules. The modules have been integrated into a hardware/software system which provides the following features: # generation of pre-programmed timing events, # distribution of asynchronous (not pre-programmed) timing events, # gating of timing event generation by Machine Protection System, # automatic stop of timing sequence in case of highway damage, # dual-speed timebase for transient recorders, # system-wide precision of ¿3 ¿s, time resolution ¿ l0 ¿s. The operation of the timing system is fully integrated into the RFX data acquisition system software. The Timing System Software consists of three layers: the lowest one corresponds directly to the CAMAC modules, the intermediate one provides pseudo-devices which essentially correspond to specific features of the modules (e.g. a dual frequency clock source for transient recorders), the highest level provides system set-up support. The system is fully operational and was first used during the commissioning of the RFX Power Supplies in spring ’91. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS07 | ||
| 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) | ||
| S11LLC01 | Replacing PS Controls Front End Minicomputers by VME Based 32-bit Processors | controls, interface, network, real-time | 375 |
|
|||
| The PS controls have started the first phase of system rejuvenation, targeted towards the LEP Preinjector Controls. The main impact of this phase is in the architectural change, as both the front-end minicomputers and the CAMAC embedded microprocessors are replaced by microprocessor based VME crates called Device Stub Controllers (DSC). This paper discusses the different steps planned for this first phase, i.e: - implementing the basic set of CERN Accelerator common facilities for DSCs (error handling, system surveillance, remote boot and network access); - porting the equipment access software layer; ¿ applying the Real-time tasks to the LynxOS operating system and J/O architecture, conforming to the real-time constraints for control and acquisition; - defining the number and contents of the different DSC needed, according to geographical and cpu-load constraints; - providing the general services outside the DSC crates (file servers, data-base services); - emulating the current Console programs onto the new workstations. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC01 | ||
| 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) | ||
| S11LLC02 | Device Controllers Using an Industrial Personal Computer of the PF 2.5-GeV Electron Linac at KEK | controls, linac, electron, gun | 378 |
|
|||
| Device controllers for electron guns and slits using an industrial personal computer have been designed and installed in the Photon Factory 2.5-Ge V Electron Linac at KEK. The design concept of the controllers is to realize a reliable system and good productivity of hardware and software by using an industrial personal computer and a programmable sequence controller. The device controllers have been working reliably for several years. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC02 | ||
| 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) | ||
| S11LLC04 | Driving Serial CAMAC Systems from VME Crates | controls, operation, status, hardware | 386 |
|
|||
| Large control systems in the 80’s were often based on Serial CAMAC loops driven by 16 bit minicomputers. These 16 bit computers, becoming obsolete in the 90’s, are advantageously replaced by VME crates. To maintain the investment in Serial CAMAC hardware and software, an inexpensive Serial Highway Driver has been developed which operates in a VME crate as simple I/O module. With this system, both classical configurations, i.e. the Highway Driver on the I/O bus of the minicomputer and the Highway Driver in a so-called CAMAC mother crate, can be replaced with minimal costs and improved performance. This paper presents a VME Serial CAMAC Driver and compares the performance of the VME driven Serial Highway to the ones driven by minicomputers. The comparison is based on the experience gained with the beginning of the replacement of Norsk Data minicomputers by VME crates in the CERN/PS control system as described by A. Gagnaire et al. in "Replacing PS Controls front end minicomputers by VME based 32-bit processors" in S11LLC01, this conference. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC04 | ||
| 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) | ||
| S11LLC06 | Beam Position Monitor Multiplexer Controller Upgrade at the LAMPF Proton Storage Ring | controls, diagnostics, timing, interface | 393 |
|
|||
|
Funding: Work supported by the U.S. Department of Energy The beam position monitor (8PM) is one of the primary diagnostic tools used for the tuning of the proton storage ring (PSR) at the Clinton P. Anderson Meson Physics Facility (LAMPF). A replacement for the existing, monolithic, wire-wrapped microprocessor-based BPM multiplexer controller has been built. The controller has been redesigned as a modular system retaining the same functionality of the original system built in 1981. Individual printed circuit cards are used for each controller function to insure greater maintainability and ease of keeping a spare parts inventory. Programmable logic device technology has substantially reduced the component count of the new controller. Diagnostic software was written to support the development of the upgraded controller. The new software actually uncovered some flaws in the original CAMAC interface. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC06 | ||
| 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) | ||
| S12FC01 | Feedback – Closing the Loop Digitall | controls, feedback, LLRF, cavity | 408 |
|
|||
|
Many feedback and feedforward systems are now using microprocessors within the loop. We describe the wide range of possibilities and problems that arise. We also propose some ideas for analysis and testing, including examples of motion control in the Flying Wire systems in Main Ring and Tevatron and Low Level RF control now being built for the Fermilab Linac upgrade. The standard techniques used to design and analyze analog feedback systems can also be applied to digital systems. It is desirable to consider frequency response, maximum tolerable error, and stability questions for systems controlled by processors. In modern digital systems a considerable amount of software not only replaces analog circuit functions but also allows additional features to be built into the system.
Operated by Universities Research Association for the Department of Energy. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S12FC01 | ||
| 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) | ||
| S12FC02 | Generalized Fast Feedback System in the SLC | feedback, controls, database, linac | 414 |
|
|||
|
Funding: Work supported by Department of Energy contract DE-AC03-76SF00515. A generalized fast feedback system has been developed to stabilize beams at various locations in the SLC. The system is designed to perform measurements and change actuator settings to control beam states such as position, angle and energy on a pulse to pulse basis. The software design is based on the state space formalism of digital control theory. The system is database-driven, facilitating the addition of new loops without requiring additional software. A communications system, KISNet, provides fast communications links between microprocessors for feedback loops which involve multiple micros. Feedback loops have been installed in seventeen locations throughout the SLC and have proven to be invaluable in stabilizing the machine. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S12FC02 | ||
| About • | Received ※ 10 October 1991 — Accepted ※ 02 January 1992 — Issued ※ 04 December 1992 | ||
| Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||
| S12FC03 | Smart Machine Protection System | controls, interface, Ethernet, operation | 420 |
|
|||
|
Funding: Work supported by Department of Energy contract DE-AC03-76SF00515. A Machine Protection System implemented on the SLC automatically controls the beam repetition rates in the accelerator so that radiation or temperature faults slow the repetition rate to bring the fault within tolerance without shutting down the machine. This process allows the accelerator to aid in the fault diagnostic process, and the protection system automatically restores the beams back to normal rates when the fault is diagnosed and corrected. The user interface includes facilities to monitor the performance of the system, and track rate limits, faults, and recoveries. There is an edit facility to define the devices to be included in the protection system, along with their set points, limits, and trip points. This set point and limit data is downloaded into the CAMAC modules, and the configuration data is compiled into a logical decision tree for the 68030 processor. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S12FC03 | ||
| About • | Received ※ 02 December 1991 — Accepted ※ 02 January 1992 — Issued ※ 04 December 1992 | ||
| Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||
| S12FC09 | Very Fast Feedback Control of Coil-Current in JT-60 Tokamak | controls, power-supply, real-time, plasma | 442 |
|
|||
| A direct digital control (DDC) system is adopted for controlling thyristor converters of power supplies in the JT-60 tokamak built in 1984. Microcomputers of the DDC were 5 MHz i8086 microprocessor and programs were written by assembler language and the processing time was under l ms. They were, however, too old in hardware and too complicated in software. New DDC system has been made in the JT-60 Upgrade (JT-60U) to control the power supplies more quickly under 0.25 and 0.5 ms of the processing time and also to write the programs used by high-level language. The new system consists of a host computer and five microcomputers with microprocessor on VMEbus system. The host computer AS3260 performs on-line processing such as setting the DDC under the discharge conditions and so on. Functions of the microcomputers with a 32-bit, 20 MHz microprocessor MC68030, whose OS are VxWorks and programs are written by C language, are real-time processing such as taking in instructions from a ZENKEI computer and in feedback control of currents and voltages of coils every 0.25 and 0.5 ms. The system is now operating very smoothly. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S12FC09 | ||
| About • | Received ※ 02 December 1991 — Accepted ※ 02 January 1992 — Issued ※ 04 December 1992 | ||
| Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||
| S13MMI01 | Workstations as Consoles for the CERN-PS Complex, Setting-Up the Environment | controls, interface, hardware, MMI | 446 |
|
|||
| Within the framework of the rejuvenation project of the CERN control systems, commercial workstations have to replace existing home-designed operator consoles. RISC-based workstations with UNIX®, X-window¿ and OSF/Motif¿ have been introduced for the control of the PS complex. The first versions of general functionalities like synoptic display, program selection and control panels have been implemented and the first large scale application has been realized. This paper describes the different components of the workstation environment for the implementation of the applications. The focus is on the set of tools which have been used, developed or integrated, and on how we plan to make them evolve. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI01 | ||
| 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 | controls, Windows, proton, antiproton | 456 |
|
|||
| 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) | ||
| S13MMI04 | The Elettra Man-Machine Interface | controls, interface, database, GUI | 460 |
|
|||
| ELETTRA is a third generation Synchrotron Light Source under construction in Trieste (Italy), with beam energies between 1.5 and 2 GeV. Two networks connect three layers of computers in a fully distributed architecture. An ergonomic and unified approach in the realization of the human interface for the ELETTRA storage ring has led to the adoption of artificial reality criteria for the definition of the system synoptic representation and user interaction. Users can navigate inside a graphic database of the whole system and interactively edit specific virtual control panels to operate on the controlled equipment. UNIX workstations with extended graphic capabilities as operator consoles are used in the implementation of the PSI (Programmable Synoptic Interface), that was developed on top of X11 and the Programmer’s Hierarchical Interactive Graphics System (PHIGS) standards. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI04 | ||
| 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) | ||
| S13MMI05 | Exploiting the X-Window Environment to Expand the Number, Reach, and Usefulness of Fermilab Accelerator Control Consoles | controls, network, operation, Windows | 464 |
|
|||
|
The Fermilab accelerator operator workstation of choice is now the Digital VAXstation running VMS and X-Window software. This new platform provides an easy to learn programming environment while support routines are expanding in number and power. The X-Window environment is exploited to provide remote consoles to users across long haul networks and to support multiple consoles on a single workstation. The integration of imaging systems, local datalogging, commercial and Physics community’s software, and development facilities on the operator workstation adds functionality to the system. The locally engineered knob/pointer/keyboard interface solves the multiple keyboard and mouse problems of a multi-screen console. This paper will address these issues of Fermilab’s accelerator operator workstations.
Operated by Universities Research Association for the Department of Energy |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI05 | ||
| 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) | ||
| S13MMI06 | A Virtual Control Panel Configuration Tool for the X-Window System | controls, interface, EPICS, network | 468 |
|
|||
|
Funding: Work supported and funded under the Department of Defense, US Army Strategic Defense Command, under the auspices of the Department of Energy. Computer Graphics Workstations are becoming increasingly popular for use as virtual process control and read back panels. The workstation’s CRT, keyboard, and pointing device are used in concert to produce a display that is in essence a control panel, even if actual switches and gauges are not present. The code behind these displays is most often specific to one display and not reusable for any other display. Recently, programs have been written allowing many of these virtual control panel displays to be configured without writing additional code. This approach allows the initial programming effort to be reapplied to many different display instances with minimal effort. These programs often incorporate many of the features of a graphics editor, allowing a pictorial model of the process under control to be incorporated into the control panel. We have just finished writing a second generation software system of this type for use with the X-Window system and the Experimental Physics and Industrial Control System (EPICS). This paper describes the primary features of our software, the framework of our design, and our observations after initial installation. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI06 | ||
| 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) | ||
| S13MMI08 | An Open Software System Based on X Windows for Process Control and Equipment Monitoring | controls, interface, Windows, target | 475 |
|
|||
| The construction and application of a configurable open software system for process control and equipment monitoring can speed up and simplify the development and maintenance of equipment specific software as compared to individual solutions. The present paper reports the status of such an approach for the distributed control systems of SPS and LEP beam transfer components, based on X Windows and the OSF/Motif tool kit and applying data modeling and software engineering methods. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI08 | ||
| 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) | ||
| S13MMI09 | Porting Linac Applieation Programs to a Windowing Environment | controls, linac, optics, interface | 479 |
|
|||
| We report our experience in porting Linac application programs written for CAMAC controlled hardware consoles to an X·Windows/Motif based workstation environment. Application programs acquire their parameter values from a front end computer (FEC), controlling the acceleration process, via a local area network. The timing for data acquisition and control is determined by the particle source timing. Two server programs on the FEC for repetitive acquisition and command-response mode will be described. The application programs on the workstations access a common parameter access server who establishes the necessary connection to the parameters on the FEC. It displays the parameter’s current values and allows control through Motif interactive synoptics editor and its corresponding driver program allow easy generation of synoptics displays and interaction through command panels. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI09 | ||
| 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) | ||
| S13MMI11 | A Flexible Graphic Display System for Accelerator Control | controls, network, factory, storage-ring | 487 |
|
|||
| A flexible graphic display system for controlling the KEK Photon Factory storage ring has been developed. A VME computer locally controls the graphic display system and communicates with the host control computer through a RS-232C link. Graphic pictures are prepared in the local system by an interactive operation using either a tablet or a keyboard. The host control computer is free from any load due to graphics processing. In an on-line operation, pictures are displayed and modified by simple command strings from the host computer. A "picture stack" method has been developed for this graphics system. The latest demanded picture always has top priority to be presented on each display monitor. Previous pictures are saved in a stack and can reappear when the current picture has been freed. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI11 | ||
| 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) | ||
| S13MMI12 | Human-Machine Interface Software Package | controls, MMI, operation, linac | 490 |
|
|||
| The Man-Machine Interface software Package (MMISP) is designed to configure the console software of PLS 60 Mev LINAC control system. The control system of PLS 60 Mev LINAC ia a distributed control system which includes the main computer (Intel 310) four local station, and two sets of industrial level console computer. The MMISP provides the operator with the display page editor, various I/0 configuration such as digital signals In/Out, analog signal In/Out, waveform TV graphic display, and interactive with operator through graphic picture display, voice explanation, and touch panel. This paper describes its function and application. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI12 | ||
| 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) | ||
| S13MMI13 | Correlation Plot Facility in the SLC Control System | controls, klystron, interface, feedback | 493 |
|
|||
|
Funding: Work supported by Department of Energy contract DE-AC03-76SF00515. The Correlation Plot facility is a powerful interactive tool for data acquisition and analysis throughout the SLC. This generalized interface allows the user to perform a range of operations or machine physics experiments without the need for any specialized analysis software. The user may step one or more independent parameters, such as magnet or feedback setpoints, while measuring or calculating up to 160 other parameters. Measured variables include all analog signals available to the control system, as well as calculated parameters such as beam size, luminosity, or emittance. Various fitting algorithms and display options are provided. A software-callable interface has been provided so that a host of applications can call this package for analysis and display. Such applications regularly phase klystrons, measure emittance and dispersion, minimize beam size, and maintain beam collisions at the interact ion point. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI13 | ||
| 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) | ||
| S14OOP01 | Object-Oriented Programming Techniques for the AGS Booster | controls, booster, MMI, interface | 500 |
|
|||
|
Funding: Work performed under the auspices of the U.S. Department of Energy. The applications software developed for the control system of the AGS Booster Project was written in the object-oriented language, C++. At the start of the Booster Project, the programming staff of the AGS Controls Section comprised some dozen programmer/analysts, all highly fluent in C but novices in C++. During the course of this project, nearly the entire staff converted to using C++ for a large fraction of their assignments. Over 100 C++ software modules are now available both for Booster and general AGS use, of which a large fraction are broadly applicable tools. The transition from C to C++ from a managerial perspective is discussed and an overview is provided of the ways in which object classes have been applied in Booster software development. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S14OOP01 | ||
| 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) | ||
| S14OOP02 | A Simplified Approach to Control System Specification and Design Using Domain Modelling and Mapping | controls, kaon, factory, interface | 505 |
|
|||
| Recent developments in the field of accelerator-domain and computer-domain modelling have led to a better understanding of the "art" of control system specification and design. It now appears possible to "compile" a control system specification to produce the architectural design. The information required by the "compiler" is discussed and one hardware optimization algorithm presented. The desired characteristics of !he hardware and software components of a distributed control system architecture are discussed and the shortcomings of some commercial products. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S14OOP02 | ||
| 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) | ||
| S14OOP03 | The Direct Manipulation Shell: Creating Extensible Display Page Editors | interface, MMI, software-component, controls | 511 |
|
|||
|
Accelerator controls systems provide parameter display pages which allow the operator to monitor and manipulate selected control points in the system. Display pages are generally implemented as either hand-crafted, purpose-built programs; or by using a specialized display page layout tool. These two methods of display page development exhibit the classic trade-off between functionality vs. ease of implementation. In the Direct Manipulation Shell we approach the process of developing a display page in a manifestly object-oriented manner. This is done by providing a general framework for interactively instantiating and manipulating display objects.
Operated by the Universities Research Association, Inc., for the U.S. Department of Energy under Contract No. DE-AC02-89ER40486. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S14OOP03 | ||
| 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) | ||
| S15CSE01 | CASE in CERN’s Accelerator Sector | controls, database, real-time, survey | 528 |
|
|||
| As in the software industry where computer aided software engineering (CASE) methodologies and tools are commonly used, CERN endeavours to introduce this technology to improve the efficiency of designing, producing and maintaining software. A large project is currently under development in the administrative area whereas a dedicated group has been set up to evaluate state of the art techniques for software development relating to physics experiments. A similar activity, though on a smaller scale, has been initiated in the accelerator sector also in view of the large amount of software that will be required by the LEP200 and the LHC projects. This paper briefly describes this technology and gives an account of current experience with the use of CASE methods and tools for technical projects in the accelerator sector at CERN. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S15CSE01 | ||
| 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) | ||
| S15CSE02 | Automation from Pictures: Producting Real Time Code from a State Transition Diagram | controls, database, real-time, interface | 535 |
|
|||
|
Funding: Work supported and funded under the Department of Defense, US Army Strategic Defense Command, under the auspices of the Department of Energy. The state transition diagram (STD) model has been helpful in the design of real time software, especially with the emergence of graphical computer aided software engineering (CASE) tools. Nevertheless, the translation of the STD to real time code has in the past been primarily a manual task. At Los Alamos we have automated this process. The designer constructs the STD using a CASE tool (Cadre Teamwork) using a special notation for events and actions. A translator converts the STD into an intermediate state notation language (SNL), and this SNL is compiled directly into C code (a state program). Execution of the state program is driven by external events, allowing multiple state programs to effectively share the resources of the host processor. Since the design and the code are tightly integrated through the CASE tool, the design and code never diverge, and we avoid design obsolescence. Furthermore, the CASE tool automates the production of formal technical documents from the graphic description encapsulated by the CASE tool. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S15CSE02 | ||
| 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) | ||
| S16MS01 | SSC Lattice Database and Graphical Interface | lattice, database, interface, collider | 538 |
|
|||
|
Funding: Operated by the Universities Research Association, Inc., for the U.S. Department of Energy under Contract No. DE-AC35-89ER40486. The SSC lattice database and the graphical tools used to access it are discussed. When completed the Superconducting Super Collider will be the world’s largest accelerator complex. In order to build this system on schedule, the use of database technologies will be essential. In this paper we discuss one of the database efforts underway at the SSC, the lattice database. The original work on this database system began at the SSC Central Design Group and is described in a report by E. Barr, S. Peggs, and C. Saltmarsh in March 1989. Operated by the Universities Research Association, Inc., for the U.S. Department of Energy under Contract No. DE-AC35-89ER40486. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S16MS01 | ||
| 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) | ||
| S16MS02 | Framework for Control System Development | controls, interface, distributed, network | 542 |
|
|||
|
Funding: This work was supported by the US DOE under Contract No. DE-AC03-76SF00098 Control systems being developed for the present generation of accelerators will need to adapt to changing machine and operating state conditions. Such systems must also be capable of evolving over the life of the accelerator operation. Several of the new generation of control systems hardware being developed today have the capability of fast, sophisticated control at all levels in the control hierarchy. These systems are typically hierarchical and highly distributed with extremely high I/O throughput. We have initiated the design of a framework for control system development which can accommodate the new architectures. This paper will present requirements, design decisions, and specifications that we have devised for this framework. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S16MS02 | ||
| 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) | ||
| S17AIA03 | GLAD: A Generic Lattice Debugger | controls, MMI, operation, quadrupole | 566 |
|
|||
|
Funding: Work supported by Department of Energy contract DE-AC03-76SF00515. Today, numerous simulation and analysis codes exist for the design, commission, and operation of accelerator beam lines. There is a need to develop a common user interface and database link to run these codes interactively. This paper will describe a proposed system, GLAD (Generic LAttice Debugger), to fulfill this need. Specifically, GLAD can be used to find errors in beam lines during commissioning, control beam parameters during operation, and design beam line optics and error correction systems for the next generation of linear accelerators and storage rings. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S17AIA03 | ||
| 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) | ||
| S18BPA02 | Frequency Domain Analyses of Schottky Signals Using a VME Based Data Server and a Workstation Client | controls, proton, antiproton, injection | 579 |
|
|||
| Schottky signals are extensively used for observation, setting-up and operation of CERN’s Antiproton rings, namely the AC, the AA and LEAR. Measurement of these signals is, at present, carried out by a series of commercial instruments. These instruments have to be individually controlled and read by each application program. The operational use of the system is limited by the capabilities of the individual instruments. The first objective for the new system was to provide, as far as possible, a true "server". The "client" application program simply requests the data it requires. It is then supplied with measured and processed data. This provides the operator with a fast response by having ready processed data always available. Our second goal was to make the system operationally simple, with multiple windows and presentation on a single screen. This paper discusses some aspects of this implementation and applications for the antiproton production, collection, and storage rings. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S18BPA02 | ||
| 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) | ||
| S18BPA04 | CARSO – A Program for Automated First Turn Steering | quadrupole, dipole, storage-ring, lattice | 587 |
|
|||
|
Funding: Supported by an ICTP fellowship CARSO is a program package which contains several new software tools to be used during first turn steering of a storage ring, or during the steering through a beam transfer line. CARSO includes routines which check the effects of magnetic components on the beam, check the measurements of the beam position monitors and simultaneously steer the beam through the ring to perform one full tum. The programs are written in ANSI extended standard FORTRAN 77 and comprise 6000 lines of source code, 87 subroutines and about 1000 different variables. The concepts used within CARSO are presented. |
|||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S18BPA04 | ||
| 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) | ||
| S19SP01 | Control Protocol: The Proposed New CERN Standard Access Procedure to Accelerator Equipment. Status Report | controls, operation, instrumentation, vacuum | 591 |
|
|||
| Control protocol provides a normalized access procedure for equipment of the same kind from a control system. Modelisation and the subsequent identification of functionalities with their parameters, variables and attributes have now been carried out at CERN for representative families of devices. ISO specifications, such as the ASN.1 metalanguage for data structure representation and MMS definitions and services have, to some extent, been introduced in the design for generality and compatibility with external world. The final product of this design is totally independent of the control systems and permits object oriented implementations in any controls frame. The present paper describes the different phases of the project with a short overview of the various implementations under development at CERN. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S19SP01 | ||
| 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) | ||
| S20PD02 | Summary of Panel Discussion on Standards and World-Wide Sharing of Software | controls, network, database, hardware | 597 |
|
|||
| It has been a dream in the accelerator community for some time that software developed for one control system be easily transferable to and usable at another. Until recently this goal was seldom realized in practice. This has been primarily because the various control systems have been developed inhouse with little standardization among them. The world of accelerators was dominated until a few years ago by very large machines constructed for doing high energy physics. The large laboratories could likewise afford large controls groups, which were able to build these complete systems from the ground up. However the accelerator scene has now shifted, with a large fraction of the new work being done at much smaller installations, installations which cannot afford the large staffs previously employed in control system production. Different approaches to this problem were outlined in the discussion. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S20PD02 | ||
| 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) | ||
| S20PD03 | Panel Discussion on Management of Control Systems | controls, experiment, hardware, factory | 598 |
|
|||
| In scientific organizations one often encounters the opinion that management is a trivial activity and that project managers enjoy the easy side of the project life, far away from where the real work is. However, examples abound of projects failing to meet their objectives, running behind schedule, overrunning costs, etc., because of poor management. To several aspects which are crucial for the successful completion of a project the attention they deserve has to be paid if the project is to meet its objectives within the constraints that are imposed upon it. Whereas the engineers do things, the manager gets things done; managers are particularly concerned with: # what is planned to be done: i.e. the product which should be delivered, in our case the control system, # how long will the project take: i.e. schedule, # how one will know when the project is finished: completion criteria, # how much will it cost to implement and to maintain: Le. the cost. These issues have been discussed in the panel discussion. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S20PD03 | ||
| 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) | ||
| S21CS01 | Issues in Accelerator Controls | controls, operation, network, hardware | 602 |
|
|||
| When attempting to make conference summaries, one is always tempted - and possibly even expected - to "discern" and then to point out the "great lines" of evolution of the subject and then to make predictions, "far sighted" if possible. Of course such an activity is jolly risky since at the beginning of any such trend, a few discernible examples and implementations of one sort, or a new product here and there, do not necessarily make a trend by the time the developments have really taken on, however, the "great line of evolution" has become obvious to just about everyone and chances are that the trend is already approaching its end and that some other trend - at that point with hardly decodable patterns - is already infiltrating the old situation which - since it is by now known - has become comfortable and homely and - thank God - at long last more or less efficiently usable. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S21CS01 | ||
| 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) | ||