A   B   C   D   E   F   G   H   I   K   L   M   N   O   P   Q   R   S   T   U   V   W  

diagnostics

Paper Title Other Keywords Page
MOAB01 The Status of the LHC Controls System Shortly Before Injection of Beam controls, laser, monitoring, cryogenics 5
 
  • P. Charrue, H. Schmickler
    CERN, Geneva
  At the time of the ICALEPCS 2007 conference, the LHC main accelerator will be close to its final state of installation, and major components will have passed the so-called “hardware commissioning.” In this paper the requirements and the main components of the LHC control system will be described very briefly. Out of its classical 3-tier architecture, those solutions will be presented, which correspond to major development work done here at CERN. Focus will be given to the present status of these developments and to lessons learned in the past months.  
slides icon Slides  
 
MOAB02 The Laser Megajoule Facility: Control System Status Report laser, controls, target, feedback 10
 
  • J. P. Arnoul, J. J. Dupas, J. I. Nicoloso, P. J. Betremieux
    CEA, Bruyères-le-Châtel
  • F. P. Signol
    CESTA, Le Barp
  The French Commissariat à l'Énergie Atomique (CEA) is currently building the Laser MegaJoule (LMJ), a 240-beam laser facility, at the CEA Laboratory CESTA near Bordeaux. LMJ will be a cornerstone of CEA's "Programme Simulation," the French Stockpile Stewardship Program. LMJ is designed to deliver about 2 MJ of 0.35 μm light to targets for high energy density physics experiments, including fusion experiments. LMJ technological choices were validated with the Ligne d'Intégration Laser (LIL), a scale 1 prototype of one LMJ bundle, built at CEA/CESTA. Plasma experiments started at the end of 2004 on LIL. The construction of the LMJ building itself started in March 2003. An important milestone was successfully achieved in November 2006 with the introduction of the target chamber into the building. LMJ will be gradually commissioned from 2011 and will then begin an experimental program toward fusion. The presentation discusses LIL experience feedback, transverse requirements intended to ultimately federate control packages from different contractors, strategy for developing the Centralized Supervisory Controls, and process for computer control system global integration.  
slides icon Slides  
 
MOPB03 Control System Studio (CSS) controls, site, factory 37
 
  • M. R. Clausen, C. H. Gerke, M. Moeller, H. R. Rickens, J. Hatje
    DESY, Hamburg
  Most applications for the control system EPICS are developed for UNIX and X-Windows. They are independent from each other, have a different look and feel, and it is difficult to exchange data. To solve these problems the Control System Studio (CSS) is under development. CSS is a common platform for new control system applications and provides developers with management infrastructure and a centralised connection to external data sources like JDBC-databases, JMS-, LDAP-servers, etc. CSS defines interfaces to avoid dependencies on special implementations. This design makes sure that an application can easily be integrated or exchanged. Another important feature is the accessibility of data through all applications via CSS-data types defined in CSS. The Data Access Layer (DAL) assures the transparent access to any control system protocol. Thus CSS is not only a platform for EPICS but for any control system that implements the DAL. The intension to modularise CSS and run it on any operating system lead to the decision to use the Eclipse RCP based on the OSGi technology. Technically CSS is a set of essential core-plugins and application plugins selected by the user.  
slides icon Slides  
 
TOAA02 Status of the Control System for HICAT at an Advanced Stage of Commissioning: Functions, Restrictions and Experiences controls, ion, ion-source, target 47
 
  • R. Baer, M. Schwickert, T. Fleck
    GSI, Darmstadt
  One and a half years after installation of the first components, much progress has been made in commissioning of the accelerator for the clinic in Heidelberg. In the final state it is designed to produce different kinds of heavy ions with energies up to 430 MeV/u to treat about 1300 tumor patients a year at three therapy rooms. Presently the specified parameter space for patient treatment is filled to meet the correct combinations of energies, beam foci, and intensities for the therapy. In this contribution we will first shortly describe the concept of the control system which was designed by GSI but developed by an all-industrial partner who furthermore delivered the front-end control units and has another contract with Siemens Medical Solutions to meet the requirements at the interface to the therapy control system. We will mainly focus on its abilities and experiences with it: different kinds of beam requests, time accuracy, real-time analysis, assurance of consistent device data, offline-diagnostics and the beam diagnostic systems. We also report on known restrictions and the concept to securely provide different operation modes for accelerator adjustment or patient treatment.  
slides icon Slides  
 
TOAA05 Implementation, Commissioning and Current Status of the Diamond Light Source Control System controls, photon, linac, simulation 56
 
  • M. G. Abbott, K. A.R. Baker, T. M. Cobb, P. N. Denison, P. Gibbons, I. J. Gillingham, A. Gonias, P. Hamadyk, S. C. Lay, P. J. Leicester, M. R. Pearson, U. K. Pederson, N. P. Rees, A. J. Rose, J. Rowland, E. L. Shepherd, S. J. Singleton, I. Uzun, M. T. Heron
    Diamond, Oxfordshire
  • A. J. Foster
    OSL, Cambridge
  • S. Hunt
    AHB, Meisterschwanden
  • P. H. Owens
    STFC/DL, Daresbury, Warrington, Cheshire
  Starting with the Linac in 2005, the commissioning of the Diamond Light Source accelerators and photon beamlines, together with their related control systems, progressed to an aggressive program such that as of early in 2007, the facility was available for first users with a suite of beamlines and experiment stations. The implementation and commissioning of the control system to meet the overall project objectives are presented. The current status of the control system, including ongoing developments for electron-beam orbit stability and future photon beamline requirements, are also described.  
slides icon Slides  
 
TOPA01 Data Management at JET with a Look Forward to ITER controls, plasma, simulation, power-supply 74
 
  • A. J. Capel, N. J. Cook, A. M. Edwards, E. M. Jones, R. A. Layne, D. C. McDonald, M. W. Wheatley, J. W. Farthing
    UKAEA Culham, Culham, Abingdon, Oxon
  • M. Greenwald
    MIT/PSFC, Cambridge, Massachusetts
  • J. B. Lister
    ITER, St Paul lez Durance
  Since the first JET pulse in 1983, the raw data collected per ~40s of plasma discharge (pulse) has roughly followed a Moore's Law-like doubling every 2 years. Today we collect up to ~10GB per pulse, and the total data collected over ~70,000 pulses amounts to ~35TB. Enhancements to JET should result in ~60GB per pulse being collected by 2010. An ongoing challenge is to maintain the pulse repetition rate, data access times, and data security. The mass data store provides storage, archiving, and also the data access methods. JET, like most fusion experiments, provides an MDSplus (http://www.mdsplus.org) access layer on top of its own client-server access. Although ITER will also be a pulsed experiment, the discharge will be ~300-5000s in duration. Data storage and analysis must hence be performed exclusively in real time. The ITER conceptual design proposes a continuous timeline for access to all project data. The JET mass data store will be described together with the planned upgrades required to cater for the increases in data at the end of 2009. The functional requirements for the ITER mass storage system will be described based on the current status of the ITER conceptual design.  
slides icon Slides  
 
TPPA06 EPICS-Based Control System for Beam Diagnostics of J-PARC LINAC controls, linac, beam-losses, rfq 96
 
  • Y. Kato, H. Sako, G. B. Shen
    JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken
  • S. Sato
    JAEA/LINAC, Ibaraki-ken
  A commercial measurement instrumentation (WE7000) is used at J-PARC LINAC, to measure beam current from SCT (Slow Current Transformer), beam energy from FCT (Fast Current Transformer), beam position from BPM (Beam Position Monitor), beam size from WSM (Wire Scanner Monitor), or beam loss from BLM (Beam Loss Monitor). The WE7000 is a module-type measurement station, and supports network-based data transmission and communication. A control system has been developed under EPICS framework for the beam diagnostic system to control all WE stations. A waveform signal from a SCT, a FCT, a BPM, a WSM, or a BLM is digitized in a WE7000 station and sent to an EPICS IOC. All signal voltages are calculated inside IOC from a raw digital count. Some physical variables are calculated from the signal voltages including beam current, beam position, and beam phase and beam energy. An EPCIS device driver was reutilized for the data acquisition. The GUI applications for data displays have been developed by using EPICS extensions tools. The current status is reported in this paper about the beam diagnostic system control.  
 
TPPA10 Development of Photon Beamline and Motion Control Software at Diamond Light Source controls, simulation, photon, site 108
 
  • T. M. Cobb, P. N. Denison, N. P. Rees
    Diamond, Oxfordshire
  Diamond Light Source has opened its first eight photon beamlines to the user community this year. We have developed the control software for the beamlines in parallel, adopting a common set of standards, tools, and designs across all beamlines. At the core of the control system is the EPICS toolset and the widespread use of the Delta Tau PMAC motion controller. The latter is a complex, but flexible controller that has met our needs both for simple and complex systems. We describe how we have developed the standard EPICS software for this controller so that we can use the existing EPICS interfaces, but also enables us to use the more advanced features of the controller.  
 
TPPA18 Application of a Virtualization Technology to VME Controllers controls, linac, storage-ring, vacuum 123
 
  • T. Fukui
    RIKEN Spring-8, Hyogo
  • T. Ohata, T. Masuda
    JASRI/SPring-8, Hyogo-ken
  The SPring-8 control framework MADOCA employs client-server architecture based on Sun RPC (Remote Procedure Call) for device control. An RPC server process named Equipment Manager (EM) is running on each VME controller operated by Solaris. It executes control commands from client applications one by one. As a simple approach to parallel (exactly concurrent) execution of the EM process, we apply the virtualization technology of Solaris Containers to VME controllers. Solaris Containers virtualizes operating system environment within the OS level. It consumes little disk space (~30 MB) to add a new virtual host. All the virtual hosts can access devices on the VME bus through a real host. We don’t need to modify the MADOCA framework and device drivers at all to run the EM process on the virtual host. Therefore, we can easily apply the virtualization technology to the VME controllers which don’t have enough disk space. The technology allows us not only to consolidate but also to logically partition the deployed VME controller. We will report some applications of Solaris Containers to the VME controllers, in particular from the viewpoint of the system performance and management.  
 
TPPA29 Interfacing of Peripheral Systems to EPICS Using Shared Memory controls, SNS, laser, monitoring 152
 
  • E. Tikhomolov
    TRIUMF, Vancouver
  Interfacing of peripheral control and data acquisition systems to an EPICS-based control system is a common problem. At the ISAC radioactive beam facility, both Linux-based and Windows-based systems were integrated using the “soft” IOC, which became available in EPICS release 3.14. For Linux systems, shared memory device support was implemented using standard Linux functions. For Windows-based RF control systems, the “soft” IOC runs as a separate application, which uses shared memory for data exchange with the RF control applications. A set of DLLs exposes an API for use by the application programmer. Additional features include alarm conditions for read-back updates, watchdogs for each running application, and test channels.  
 
TPPB10 Target Diagnostic Instrument-Based Controls Framework for the National Ignition Facility (NIF) controls, target, power-supply, laser 184
 
  • J. H. Kamperschroer, J. R. Nelson, D. W. O'Brien, R. T. Shelton
    LLNL, Livermore
  The extreme physics of targets shocked by NIF’s 192-beam laser are observed by a diverse suite of diagnostics including optical backscatter, time-integrated and gated X-ray sensors, and laser velocity interferometry. Diagnostics for fusion ignition are being planned. Many diagnostics are developed at other sites, but ad hoc controls could prove costly or unreliable. The instrument-based controls (IBC) framework facilitates development and eases integration. Each diagnostic typically uses an ensemble of electronic instruments attached to sensors, digitizers, and other devices. Each individual instrument is interfaced to a low-cost WindowsXP processor and Java application. Instruments are aggregated as needed in the supervisory system to form the integrated diagnostic. Java framework software provides data management, control services, and operator GUIs. IBCs are reusable by replication and configured for specific diagnostics in XML. Advantages include small application codes, easy testing, and better reliability. Collaborators save costs by reusing IBCs. This talk discusses target diagnostic instrumentation used on NIF and presents the IBC architecture and framework.  
 
TPPB14 Status of the ALBA Control System controls, linac, vacuum, synchrotron 193
 
  • D. Fernandez-Carreiras
    ALBA, Bellaterra (Cerdanyola del Vallès)
  This paper describes the progress in the design of the control system for the machine and beamlines. Solutions for interfacing devices, networking, interlocks, diagnostics, etc., are presented. Most call for tenders for the machine are placed, and hardware and software choices have been adopted. Alba uses Tango as the toolkit for building the control system. Device servers are mostly written in C++ and Python. Clients are mostly Java (ATK) and Python (+Qt). Different technologies have been chosen for the different subsystems, i.e., PLCs and distributed I/O for the Equipment Protection System, safety PLCs for the Personnel Safety System, event-driven timing system, Ethernet for the power supplies, etc. The actual status of both hardware and software is given, and the plans for the future are presented.  
 
TPPB23 LHC Powering Circuit Overview: A Mixed Industrial and Classic Accelerator Control Application controls, monitoring, cryogenics, superconducting-magnet 211
 
  • H. M. Milcent, F. B. Bernard
    CERN, Geneva
  Three control systems are involved in the powering of the LHC magnets: QPSs (Quench Protection Systems), PICs (Powering Interlock Controllers), and PCs (Power Converters). They have been developed and managed by different teams. The requirements were different; in particular, each system has its own expert software. The starting of the LHC hardware commissioning has shown that a single access point should make the tests easier. Therefore, a new application has been designed to get the powering circuit information from the three expert softwares. It shows synthetic information, through homogenous graphical interfaces, from various sources: PLCs (Programmable Logic Controllers) and WorldFIP agents via FESA (Front-End Software Architecture) and via gateways. Furthermore, this application has been developed for later use. During the LHC operation, it will provide powering circuit overview. This document describes the powering circuit overview application based on an industrial SCADA (Supervisory Control and Data Acquisition) system named PVSS with the UNICOS (Unified Industrial Control System) framework. It also explains its integration into the LHC accelerator control infrastructure.  
 
TPPB25 SPARC Control System controls, vacuum, emittance, power-supply 214
 
  • F. A. Anelli, M. Bellaveglia, D. Filippetto, S. Fioravanti, E. Pace, G. Di Pirro
    INFN/LNF, Frascati (Roma)
  • L. Catani, A. Cianchi
    INFN-Roma II, Roma
  We describe the control system for the new Frascati injector project (SPARC). The injector starts operation in fall 2007, and at that time the control system must be fully operative and integrate all tools to help the machine operation. To allow a fast development of the control system, we made some choices: (1) Labview as developing system due to its diffusion in the Frascati labs and being a standard-de-facto in the acquisition software; (2) GigaBit Ethernet as interconnection bus in order to have sufficient bandwidth for data exchange; and (3) PCs as front-end CPUs and operator console because they have enough computing power. In 2006 a first operation of the control system, during the SPARC gun test performed with the e-meter diagnostic apparatus, allowed us to test the architecture of the control system both from the hardware and software points of view. All control applications for magnetic elements, vacuum equipment, RF cavities, and some diagnostics have been developed and debugged online. An automatic process stores in a database operating information both periodically and on data change. Information can be sent automatically or manually to our e-logbook.  
 
TPPB32 EPICS at the Synchrotron Radiation Source DELTA controls, photon, synchrotron, undulator 232
 
  • S. Doering, U. Berges
    DELTA, Dortmund
  Since 1999 the control system at the synchrotron radiation source DELTA, located at the University of Dortmund, Germany, has operated under EPICS. The change from a nonstandard, handmade system to EPICS has been made stepwise till 2001. Since 2002 the first two beamlines in the soft X-ray region are also operated under EPICS to benefit from the easy communication with the accelerator control system. A complete plane-grating-monochromator-beamline (PGM-beamline U55) with its experiment is operated under EPICS, including the stepper motors and device readout. A toroidal-grating-monochromator-beamline (TGM-beamline) has been completely changed from an old system into EPICS control system. At both beamlines new photon-bpm-readout systems under a LINUX-PC and EPICS from the company ENZ are tested. Also a compact stepper motor driver unit with a small LINUX-PC has succesfully been developed in this cooperation. DELTA works as a test facility for these new developments. The easy and fast exchange of the necessary data with the machine control system is an advantage as is the benefit from the EPICS community.  
 
TPPB34 ISAC Control System Update controls, ion, monitoring, optics 235
 
  • D. Bishop, D. Dale, T. Howland, H. Hui, K. Langton, M. LeRoss, R. B. Nussbaumer, C. G. Payne, K. Pelzer, J. E. Richards, W. Roberts, E. Tikhomolov, G. Waters, R. Keitel
    TRIUMF, Vancouver
  At the ISAC radioactive beam facility, the superconducting Linac was commissioned, and several experimental beam lines were added. The paper will describe the additions to the EPICS-based control system, issues with integration of third-party systems, as well as integration of accelerator controls with experiment controls.  
 
TPPB39 Experiences with an Industrial Control System: Traceability of Specifications, Commissioning Support and Conclusions from the HICAT Project controls, ion, linac, ion-source 247
 
  • R. Baer, M. Schwickert, U. Weinrich, T. Fleck
    GSI, Darmstadt
  While the accelerator for HICAT was designed by GSI, most components and systems were supplied by industrial partners. Despite thorough and detailed specifications for the control system, the concept allowed a rather high degree of freedom for the industrial partner regarding the implementation. The challenge of this combination established a good understanding of the necessary functionalities by our industrial partner. First, we describe the process of implementation starting with the specifications made, sum up the tracing of the development, and show how we ensured proper functionality ab inito and necessary steps since then. Second, we describe problems ranging from software bugs to demands regarding acceptance tests for other components and state how we managed to solve these problems with our industrial partner on a short timescale. Last, we show what can be learned from our experiences. In particular we discuss where it is more efficient to describe all necessary physical dependencies to the industrial partner instead of defining a proper interface where the programming can be done by accelerator experts and concentrate on areas that led to problems with the time schedule.  
 
TOPB01 Upgrade Program of the PSI High Intensity Cyclotron controls, power-supply, cyclotron, feedback 259
 
  • D. Anicic, A. C. Mezger, D. Vermeulen, T. Korhonen
    PSI, Villigen
  The PSI 590-MeV Cyclotron is already more than 30 years in operation. However, it still holds the world record in continuous beam power. There is an active experiment program being pursued, and new experiments are planned and being built. In addition, the beam intensity is being upgraded by 50%. The control system has been through several incremental upgrades. However, the new requirements and other developments at PSI (other accelerator facilities) force again an upgrade. This time the whole architecture of the system is to be changed. The controls hardware architecture will be changed and the underlying software will move to EPICS. All this has to happen without compromising the operation schedule. In the upgrade program we are planning to benefit from several new developments, both in-house and together with the community. The central technologies to be used will be presented. The issue of how to tackle the somewhat contradictory goals of upgrading on the fly will be discussed.  
slides icon Slides  
 
TOPB02 Improvement of Tore Supra Real Time Processing Capability Using Remote PCs plasma, controls, electron, cyclotron 262
 
  • B. Guillerminet, F. Leroux, D. Molina, N. Ravenel, P. H. Moreau
    EURATOM-CEA, St Paul Lez Durance
  The Tore Supra tokamak is the largest superconducting magnetic fusion facility. Its real time measurements and control system is designed to deal with continuous acquisition during the plasma discharge, fast acquisition (sampling frequency up to 4 GHz) and Real Time (RT) data processing. The simultaneous control of an increasing number of plasma parameters aiming at tokamak operations in a fully steady state regime makes fast acquisitions and RT data processing more and more de-manding. The Tore Supra Data Acquisition System (DAS) is based mainly on VME bus acquisition units using Lynx OS 3.1 as operating system. Some units are not able any more to handle in parallel the data flow rate (about 100ko/s increasing up to 6Mo/s during fast acquisition phase) and the RT processing. Furthermore, the time delay between two fast acquisition phases must be reduced to be able to catch fast plasma events. To cope with these needs, the data processing capability has been enhanced while preserving the existing acquisition system. A new DAS layer containing Linux-PC has been implemented. The link between the Lynx-OS layer and the Linux layer is ensured by a 100-Mbps Ethernet link.  
 
WOAA03 LHC Cryogenics Control System: Integration of the Industrial Controls (UNICOS) and Front-End Software Architecture (FESA) Applications controls, cryogenics, instrumentation, radiation 281
 
  • P. Gayet, E. Blanco
    CERN, Geneva
  The LHC cryogenics control system is based on the CERN Industrial framework UNICOS (Unified Industrial Control System). UNICOS covers aspects related to both the SCADA (Supervisory Control and Data Acquisition) and the PLCs (Programmable Logic Controllers). The LHC cryogenic instrumentation must deal with the hostile radiation environment present in the accelerator tunnel preventing the use of off-the-shelves sensor signal conditioners. The conditioners are then realized with rad hard components connected to the control system through a WordlFIP fieldbus. A custom application using a FESA (Front-End Software Architecture) framework has been developed in an industrial PC, the standard CERN solution for WorldFIP interfacing. The solution adopted is based on custom generators that allow rapid prototyping of the control system by minimizing the human intervention at the configuration time and ensuring an error-free application deployment. This document depicts the control system architecture, the usage of custom generators within large systems, and the integration of the software applications with a classical industrial controls architecture application.  
slides icon Slides  
 
WOAB01 Operational Tools at the Stanford Linear Accelerator Center controls, lattice, feedback, linac 288
 
  • S. Chevtsov, P. Chu, D. Fairley, C. Larrieu, D. Rogind, H. Shoaee, M. Woodley, S. Zelazny, G. R. White
    SLAC, Menlo Park, California
  The operational tools at SLAC have been in continuous development for 20 years. These include a highly developed orbit correction package, an automatic bump maker, orbit fitting, lattice diagnostics, beta-matching and phase advance calculator, a macro recording facility, "Correlation Plots," which is a facility for conducting small ad-hoc experiments, plus a number of others. All of these use a global online modeling database system, and they are all integrated into a single interactive application program, so they interoperate seamlessly. In this talk I'll review these tools, and contrast them with systems we have recently developed which focus on support for accelerator physics conducted directly from numerical analysis packages such as Matlab, or from physicists' own small specialized programs. Lastly, our plans to rewrite all of these operational tools using modern software tools and infrastructure, and how we bridge old systems to new, will be presented.  
slides icon Slides  
 
WOPA04 Front-End Software Architecture controls, monitoring, pick-up, beam-losses 310
 
  • L. Fernandez, S. Jackson, F. Locci, J. L. Nougaret, M. P. Peryt, A. Radeva, M. Sobczak, M. Vanden Eynden, M. Arruat
    CERN, Geneva
  CERN’s Accelerator Controls group launched a project in 2003 to develop the new CERN accelerator Real-Time Front-End Software Architecture (FESA) for the LHC and its injectors. In this paper, we would like to report the status of this project, at the eve of the LHC start-up. After describing the main concepts of this real-time Object Oriented Software Framework, we will present how we have capitalized on this technical choice by showing the flexibility through the new functionalities recently introduced such as Transactions, Diagnostics, Monitoring, Management of LHC Critical Settings, and Communication with PLC devices. We will depict the methodology we have put in place to manage the growing community of developers and the start of a collaboration with GSI. To conclude we will present the extensions foreseen in the short term.  
slides icon Slides  
 
WPPA01 A Novel PXI-Based Data Acquisition and Control System for Stretched Wire Magnetic Measurements for the LHC Magnets: An Operation Team Proposal controls, power-supply, monitoring, quadrupole 316
 
  • K. Priestnall, V. Chohan
    CERN, Geneva
  • S. Shimjith, A. Tikaria
    BARC, Mumbai
  The SSW system developed by Fermilab, USA, has been the main device heavily used since 2004 at CERN for certain required measurements of all the LHC Quadrupole assemblies as well as certain measurements for the LHC Dipoles. All these structures also include various small and large corrector magnets. A novel system is proposed, based on three years of operational experience in testing the LHC Magnets on a round-the-clock basis. A single stretched wire system is based on the wire cutting the magnetic flux, producing the electrical potential signal. Presently this signal is integrated with a VME-based data acquisition system and is used to analyse the magnetic field. The acquisition and control is currently done via a SUN workstation communicating between different devices with different buses and using different protocols. The new system would use a PXI based data acquisition system with an embedded controller; the different devices are replaced by PXI-based data acquisition and control cards using a single bus protocol and on one chassis. The use of windows based application software would enhance the user friendliness, with overall costs of the order of 10 KCHF.  
 
WPPA05 The LANSCE Timing System Upgrade controls, ion, linac, synchrotron 325
 
  • E. Bjorklund
    LANL, Los Alamos, New Mexico
  As part of a planned upgrade project for the Los Alamos Neutron Science Center (LANSCE) accelerator, we are considering replacing our current timing system, which distributes each timing signal on its own dedicated wire, with a more modern event-driven system. This paradigm shift in how timing signals are generated and distributed presents several challenges that must be overcome if we are to preserve our current operational capabilities. This paper will discuss some of the problems and possible solutions involved with migrating to an event system. It will also discuss some recent enhancements to theμResearch, Finland (MRF) event system that will help us accomplish our goal.  
 
WPPA07 The Control System of the Harmonic Double Sided Microtron at MAMI controls, microtron, power-supply, linac 331
 
  • M. Dehn, H. J. Kreidel
    IKP, Mainz
  The MAMI electron accelerator cascade of three Racetrack Microtrons (RTMs) has been upgraded by a 4th stage, a Harmonic Double Sided Microtron (HDSM), raising the output energy from 0.855GeV to 1.5GeV. The control system for this worldwide unique machine has been built by extending and updating the well proven system of the three RTMs described at the ICALEPCS'99*. To accomplish this, software to control a couple of new devices had to be implemented, the operator interface was rebuilt and new PC-based VME-front-end computers were developed. To supply the large number of correction dipole steerers on the 43 recirculation paths, a new type of multi-channel power supplies was developed in-house. An enhanced system for digitising the signals of the rf-position monitors on the linac axes has been set up to improve the automatic beam position optimisation in the RTMs and to enable it in the HDSM.

* Proceedings of ICALEPCS'99, page 645.

 
 
WPPA09 Development of Embedded System for Running EPICS IOC by Using Linux and a Single Board Computer controls, target, vacuum, power-supply 334
 
  • M. Kase, M. Komiyama
    RIKEN/RARF/CC, Saitama
  • A. Uchiyama
    SHI Accelerator Service ltd., Tokyo
  We constructed a control system based on the Experimental Physics and Industrial Control System (EPICS) for the RIKEN RI-beam Factory (RIBF) project. Nowadays, the PC-based EPICS Input Output Controller (IOC) is used in many laboratories because it is available for use on the Linux x86 platform since EPICS was upgraded to version R3.14. If the number of PC-based IOC increases, the probability of trouble rises dramatically. Consequently, it is difficult to supply reliable hardware. Furthermore, if a lot of desktop PCs are used for running IOC only, it is very hard to maintain it. The purpose of this development is to give the high durability system for running IOC computer and the ability for all accelerator operators to maintain it easily. We expect we can solve the problems described above using a diskless and fanless embedded single board computer (SBC) for running IOC and managing IOC in the fileserver collectively. For this reason, we developed a compact and simple Linux distribution specialized for running IOC and introduced IOC, which is installed in the SBC, into RIBF control system. In our contribution, we report this system and present the status in detail.  
 
WPPA21 DOOCS Camera System laser, controls, free-electron-laser, linac 359
 
  • R. Rybnikov, G. Grygiel
    DESY, Hamburg
  The Free Electron Laser in Hamburg (FLASH), with its complex accelerator diagnostics and user experiments, requires a lot of different cameras for both the operation and the experiments. A common interface for simple USB cameras, for fire wire cameras, and for high resolution cameras with, e.g. multiple "region of interest" was developed. This system integrates the various camera types in a transparent way into the FLASH control system DOOCS. In addition, the cameras are connected to a fast data acquisition system (DAQ). The DAQ provides the synchronization with other diagnostics data, online processing of the images, and a long time archiving.  
 
WPPA22 Real-Time Measurement and Control at JET – Status 2007 controls, plasma, neutral-beams, electron 362
 
  • T. Budd, F. Sartori, R. C. Felton
    EFDA-JET, Abingdon, Oxon
  The Joint European Tokamak (JET) is a large machine for experiments on fusion plasmas. Many of the experiments use real-time measurements and controls to establish and/or maintain specific plasma conditions. Each Instrument (Diagnostic or Heating/Fueling/Magnet) is connected to a network. The number of systems has now grown to over thirty, and new systems are being planned for the future. Since some of the systems are used to control critical parameters of the JET plasma, we are improving the availability, reliability, and maintainability of the facility. We must ensure that systems check their message structures against a central Data Dictionary at build-time and run-time and secondly that the systems check their input data streams are alive before, during, and after a JET pulse. Thirdly, a test data generator facility is being added so that systems can be validated in situ. Finally, we are developing high-level control configuration tools. From all of these, we identify some general principles that are applicable to the next-generation machines.  
 
WPPA24 EPICS CA Enhancements for LANSCE Timed and Flavored Data controls, site, ion, proton 365
 
  • J. O. Hill
    LANL, Los Alamos, New Mexico
  Currently the subscription update event queue in the EPICS server is capable of carrying event payloads consisting always of the channel’s value, time stamp, and alarm state. The complexity of the LANSCE macro pulse beam gates requires unique capabilities within the LANSCE control system - which is currently only partly based on an EPICS core. Upgrade designs specify a 100% EPICS based system, but this has evolved new requirements for enhanced capabilities within EPICS. Specifically, EPICS Channel Access (CA) clients need to dynamically specify the LANSCE macro pulse beam gate combinatorial (LANSCE Flavored Data), and the timing offsets (LANSCE Timed Data), to be viewed when they subscribe. EPICS upgrades in progress fulfilling these requirements, including generic software interfaces accommodating site specific event queue payloads and client specified subscription update filters, will be described.  
 
WPPA25 Remote Monitoring System for Current Transformers and Beam Position Monitors of PEFP proton, rfq, controls, monitoring 368
 
  • Y.-S. Cho, H. S. Kim, H.-J. Kwon, Y.-G. Song, I.-S. Hong
    KAERI, Daejon
  • J. W. Lee
    PAL, Pohang, Kyungbuk
  PEFP(Proton Engineering Frontier Project) in Korean proton linear accelerator program has a diagnostic system with current transformers and beam position monitors. Prototype of current transformer(CT) and beam position monitor(BPPM) were made and tested successfully in tools of the beam diagnostic systems. We are preparing to monitor remotely signals from the diagnostic system. Remote monitoring system is based on VME system with EPICS environments. For fast digitizing the analog signals VME ADC Input Output Board (VTR812/10) are used to meet the various needs of beam diagnosis device. EPICS channel access and drivers have been programmed in VME CPU to operate the Input output controller(IOC) and interface operators. Operator console and data storage have been implemented with EDM and channel archiver as well.  
 
WPPA31 Status of a Versatile Video System at PITZ, DESY-2 and EMBL Hamburg controls, electron, monitoring, laser 380
 
  • M. Lomperski, P. Duval
    DESY, Hamburg
  • G. Trowitzsch, S. Weisse
    DESY Zeuthen, Zeuthen
  The market for industrial vision components is evolving towards GigE Vision (Gigabit Ethernet vision standard). In recent years, the usage of TV systems/optical readout at accelerator facilities has been increasing. The Video System at PITZ, originated in the year 2001, has overcome a huge evolution over the last years. Being real-time capable, lossless capable, versatile, well-documented, interoperable, and designed with the user's perspective in mind, use cases at Petra 3 and EMBL at DESY Hamburg have been implemented to great success. The wide use range spans from robotics to live monitoring up to precise measurements. The submission will show the hardware and software structure, components used, current status as well as a perspective for future work.  
 
WPPA37 Developing of SMS Mobile System for the PLS Control System controls, monitoring, vacuum, focusing 392
 
  • J. Choi, H.-S. Kang, J. W. Lee, B. R. Park, J. C. Yoon
    PAL, Pohang, Kyungbuk
  The PLS SMS mobile system is based on Linux PC platform. The SMS mobile system is equipped with a wireless SMS(Simple Message Service) interface giving an opportunity to use fault alarm interlock system. It was developed as a network-based distributed real-time control system composed of several subsystems (EPICS IOC and PLC system). The mobile system sends simple message of fault trip signal to users’ mobile devices with fault tag address and immediately sends warning or alert messages to mobile devices, or remote users are real-time monitoring the device fault states by mobile devices. Control systems can be set remotely by mobile devices in emergency situation. In order to provide suitable actions against system fault, SMS Mobile System will enable system administrator to promptly access, monitor and control the system whenever users want and wherever users are, by utilizing wireless Internet and mobile devices. This paper presents the Mobile SMS system for PLS Control System.  
 
WPPB03 Software Interlocks System controls, laser, extraction, injection 403
 
  • V. Baggiolini, D. Garcia Quintas, J. Wenninger, J. P. Wozniak
    CERN, Geneva
  In the year 2006, a first operational version of a new Java-based Software Interlock System (SIS) was introduced to protect parts of the SPS (Super Proton Synchrotron) complex, mainly CNGS (CERN Neutrinos to Gran Sasso), TI8 (SPS transfer line), and for some areas of the SPS ring. SIS protects the machine through surveillance and by analyzing the state of various key devices and dumping or inhibiting the beam if a potentially dangerous situation occurs. Being a part of the machine protection, it shall gradually replace the old SPS Software Interlock System (SSIS) and reach the final operational state targeting LHC (Large Hadron Collider) in 2008. The system, which was designed with the use of modern, state-of-the-art technologies, proved to be highly successful and very reliable from the very beginning of its existence. Its relatively simple and very open architecture allows for fast and easy configuration and extension to meet the demanding requirements of the forthcoming LHC era.  
 
WPPB07 Machine Protection and Advanced Plasma Control in TORE SUPRA Tokamak plasma, controls, electron, injection 412
 
  • S. P. Bremond, J. Bucalossi, G. Martin, P. H. Moreau, F. Saint-Laurent
    EURATOM-CEA, St Paul Lez Durance
  A tokamak is a complex device combining many sub-systems. All of them must have high reliability and robustness to operate together. A sub-system includes its own safety protections and a more integrated level of protection to ensure the safety of the full device. Moreover, plasma operation with several megawatts of additional injected power requires a highly reliable and performing control because uncontrolled plasma displacements and off-normal events could seriously damage the in-vessel components. Such an integrated control system is installed on Tore Supra. It can develop an alternative plasma operation strategy when margins to technological sub-system limits become too small. The control switches to more and more degraded modes, from the nominal one to a fast plasma shutdown. When sub-system limits are nearly reached, the system tries to balance the loads over less solicited parts. Then a modification of the plasma parameters is performed to preserve the plasma discharge in a degraded mode. The third step is a soft and controlled plasma shutdown, including a stopping of additional heating systems. When loads are closed to be uncontrolled, a fast plasma shutdown is initiated.  
 
WPPB15 Beyond PCs: Accelerator Controls on Programmable Logic controls, survey, monitoring, power-supply 433
 
  • J. Dedic, K. Zagar, M. Plesko
    Cosylab, Ljubljana
  The large number of gates in modern FPGAs including processor cores allows implementation of complex designs, including a core implementing Java byte-code as the instruction set. Instruments based on FPGA technology are composed only of digital parts and are totally configurable. Based on experience gained on our products (a delay generators producing sub-nanosecond signals and function generators producing arbitrary functions of length in the order of minutes) and on our research projects (a prototype hardware platform for real-time Java, where Java runtime is the operating system and there is no need for Linux), I will speculate about possible future scenarios: A combination of an FPGA processor core and custom logic will provide all control tasks, slow and hard real-time, while keeping our convenient development environment for software such as Eclipse. I will illustrate my claims with designs for tasks such as low-latency PID controllers running at several dozen MHz, sub-nanosecond resolution timing, motion control, and a versatile I/O controller–all implemented in real-time Java and on exactly the same hardware, just with different connectors.  
 
WPPB25 Realization of a Custom Designed FPGA Based Embedded Controller controls, feedback, heavy-ion, collider 451
 
  • M. Harvey, T. Hayes, L. T. Hoff, R. C. Lee, P. Oddo, K. Smith, F. Severino
    BNL, Upton, Long Island, New York
  As part of the low-level RF (LLRF) upgrade project at Brookhaven National Laboratory’s Collider-Accelerator Department (BNL C-AD), we have recently developed and tested a prototype high-performance embedded controller. This controller is a custom-designed PMC module employing a Xilinx V4FX60 FPGA with a PowerPC405 embedded processor and a wide variety of onboard peripherals (DDR2 SDRAM, FLASH, Ethernet, PCI, multi-gigabit serial transceivers, etc.). The controller is capable of running either an embedded version of LINUX or VxWorks, the standard operating system for RHIC front-end computers (FECs). We have successfully demonstrated functionality of this controller as a standard RHIC FEC and tested all onboard peripherals. We now have the ability to develop complex, custom digital controllers within the framework of the standard RHIC control system infrastructure. This paper will describe various aspects of this development effort, including the basic hardware, functional capabilities, development environment, kernel and system integration, and plans for further development.  
 
WPPB28 Remote Operation of Large-Scale Fusion Experiments controls, plasma, site, monitoring 454
 
  • G. Abla, D. P. Schissel
    GA, San Diego, California
  • T. W. Fredian
    MIT, Cambridge, Massachusetts
  • M. Greenwald, J. A. Stillerman
    MIT/PSFC, Cambridge, Massachusetts
  This paper examines the past, present, and future remote operation of large-scale fusion experiments by large, geographically dispersed teams. The fusion community has considerable experience placing remote collaboration tools in the hands of real users. Tools to remotely view operations and control selected instrumentation and analysis tasks were in use as early as 1992 and full remote operation of an entire tokamak experiment was demonstrated in 1996. Today’s experiments invariable involve a mix of local and remote researchers, with sessions routinely led from remote institutions. Currently, the National Fusion Collaboratory Project has created a FusionGrid for secure remote computations and has placed collaborative tools into operating control rooms. Looking toward the future, ITER will be the next major step in the international program. Fusion experiments put a premium on near real-time interactions with data and among members of the team and though ITER will generate more data than current experiments, the greatest challenge will be the provisioning of systems for analyzing, visualizing and assimilating data to support distributed decision making during ITER operation.  
 
ROAB01 Software Engineering Processes Used to Develop the NIF Integrated Computer Control System controls, laser, target, alignment 500
 
  • R. W. Carey, R. D. Demaret, L. J. Lagin, U. P. Reddi, P. J. Van Arsdall, A. P. Ludwigsen
    LLNL, Livermore
  The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory is a 192-beam laser facility for high-energy density physics experiments. NIF is operated by the Integrated Computer Control System (ICCS), which is comprised of 60,000 devices deployed on 850 computers. Software is constructed from an object-oriented framework based on CORBA distribution. ICCS is 85% complete, with over 1.5 million lines of verified code now deployed online. Success of this large-scale project was keyed to early adoption of rigorous software engineering practices, including architecture, code design, configuration management, product integration, and formal verification testing. Verification testing is performed in a dedicated test facility following developer integration. These processes are augmented by an overarching quality assurance program featuring assessment of quality metrics and corrective actions. Engineering processes are formally documented, and releases are managed by a change control board. This talk discusses software engineering and results obtained for the NIF control system.  
slides icon Slides  
 
RPPA13 The Electrical Power Project at SNS SNS, controls, instrumentation, klystron 544
 
  • M. P. Martinez, J. D. Purcell, E. Danilova
    ORNL, Oak Ridge, Tennessee
  The Electrical Power Project consists of recording data on all power-distribution devices necessary to SNS operations and how they are connected, assigning a valid name to each device and describing it, along with loading this information and the relationships into the SNS Oracle database. Interactive web-based applications allow users to display and easily update power-related data. In the case of planned electrical outages, a complete list of affected devices (including beam-line devices) will be available to controls, diagnostics, and other groups in advance. The power-tree information can be used to help diagnose electrical problems of any specific device. Fast access to device characteristics and relations from any web browser will help technical personnel quickly identify hazards and prevent electrical accidents, thereby ensuring SNS electrical safety. The project was completed by a special task team containing individuals from different groups. The paper covers the project history, QA issues, technology used, and current status.  
 
RPPA19 Photon Diagnostic Station for TAC IR-FEL Test Facility photon, undulator, laser, electron 556
 
  • I. Tapan
    UU, Bursa
  The Turkic Accelerator Center (TAC) project has been accepted by Turkish government. According to this project, a linac-based infrared oscillator free electron laser (FEL) will be constructed as a TAC test facility by the end of 2010. Planning work has been ongoing for the firt FEL facility building in Turkey. Both 20- and 40-MeV electron energies will be used to obtain infrared photons in the wavelength region of 1 to 100 micrometers. The IR FEL photons generated by two undulators will be transported through the respestive two photon beam lines to the experimental hall, where they are fed in to eight experimental station. Photon diagnostic station will be located in the experimental hall to measure the properties of the photon beam. In this work, the performance of the designed IR-FEL photon diagnostic station for the TAC test facility has been discussed.  
 
RPPA33 Search for a Reliable Storage Architecture for RHIC controls, background, heavy-ion, collider 585
 
  • R. A. Katz, J. Morris, S. Binello
    BNL, Upton, Long Island, New York
  Software used to operate the Relativistic Heavy Ion Collider (RHIC) resides on one operational RAID storage system. This storage system is also used to store data that reflects the status and recent history of accelerator operations. Failure of this system interrupts the operation of the accelerator as backup systems are brought online. In order to increase the reliability of this critical control system component, the storage system architecture has been upgraded to use Storage Area Network (SAN) technology and to introduce redundant components and redundant storage paths. This paper describes the evolution of the storage system, the contributions to reliability that each additional feature has provided, further improvements that are being considered, and real-life experience with the current system.  
 
RPPA35 The DIAMON Project – Monitoring and Diagnostics for the CERN Controls Infrastructure controls, monitoring, laser, power-supply 588
 
  • M. Buttner, J. Lauener, K. Sigerud, M. Sobczak, N. Stapley, P. Charrue
    CERN, Geneva
  The CERN accelerators’ controls infrastructure spans over large geographical distances and accesses a big diversity of equipment. In order to ensure smooth beam operation, efficient monitoring and diagnostic tools are required by the operators, presenting the state of the infrastructure and offering guidance for the first line support. The DIAMON project intends to deploy software monitoring agents in the controls infrastructure, each agent running predefined local tests and sending its result to a central service. A highly configurable graphical interface will exploit these results and present the current state of the controls infrastructure. Diagnostic facilities to get further details on a problem and first aid to repair it will also be provided. This paper will describe the DIAMON project’s scope and objectives as well as the user requirements. Also presented will be the system architecture and the first operational version.  
 
RPPA38 Fast Orbit Feedback System Upgrade in the TLS feedback, power-supply, electron, controls 597
 
  • J. Chen, K. T. Hsu, S. Y. Hsu, K. H. Hu, C. H. Kuo, D. Lee, P. C. Chiu
    NSRRC, Hsinchu
  Orbit feedback system of the Taiwan Light Source (TLS) has been deployed for a decade. The loop bandwidth was limited by existing hardware. The system cannot remove perturbation caused by fast source. To improve orbit feedback performance, BPM system and corrector power supply are planned to upgrade within a couples of years. New digital BPM electronics will enhance functionality of the BPM system and replace analogy type BPM but due to limited resource, the BPM system will be a mixed type at this moment. The corrector power-supply is also replaced by high performance switching type power supply with wide bandwidth in the same time. It is expected that our upgrade will significantly improve performance of fast orbit feedback.  
 
RPPB06 Device Control Tool for CEBAF Beam Diagnostics Software controls, monitoring, instrumentation, target 615
 
  • P. Chevtsov
    Jefferson Lab, Newport News, Virginia
  By continuously monitoring the beam quality in the CEBAF accelerator, a variety of beam diagnostics software created at Jefferson Lab makes a significant contribution to very high availability of the machine for nuclear physics experiments. The interface between this software and beam instrumentation hardware components is provided by a device control tool, which is optimized for beam diagnostics tasks. As a part of the device/driver development framework at Jefferson Lab, this tool is very easy to support and extend to integrate new beam instrumentation devices. All device control functions are based on the configuration (ASCII text) files that completely define the used hardware interface standards (CAMAC, VME, RS-232, GPIB) and communication protocols. The paper presents the main elements of the device control tool for beam diagnostics software at Jefferson Lab.  
 
RPPB07 The System Overview Tool of the Joint Controls Project (JCOP) Framework controls, monitoring, power-supply, feedback 618
 
  • M. Gonzalez-Berges, F. Varela
    CERN, Geneva
  • K. D. Joshi
    BARC, Mumbai
  For each control system of the Large Hadron Collider (LHC) experiments, there will be many processes spread over many computers. All together, they will form a PVSS distributed system with around 150 computers organized in a hierarchical fashion. A centralized tool has been developed for supervising, error identification and troubleshooting in such a large system. A quick response to abnormal situations will be crucial to maximize the physics usage. The tool gathers data from all the systems via several paths (e.g., process monitors, internal database) and, after some processing, presents it in different views: hierarchy of systems, host view and process view. The relations between the views are added to help to understand complex problems that involve more than one system. It is also possible to filter the information presented to the shift operator according to several criteria (e.g. node, process type, process state). Alarms are raised when undesired situations are found. The data gathered is stored in the historical archive for further analysis. Extensions of the tool are under development to integrate information coming from other sources (e.g., operating system, hardware).  
 
RPPB22 Tracking Accelerator Settings insertion, controls, background 653
 
  • W. Fu, D. P. Ottavio, T. D'Ottavio
    BNL, Upton, Long Island, New York
  Recording setting changes within an accelerator facility provides information that can be used to answer questions about when, why, and how changes were made to some accelerator system. This can be very useful during normal operations, but can also aid with security concerns and in detecting unusual software behavior. The Set History System (SHS) is a new client/server system developed at the Collider-Accelerator Department of Brookhaven National Laboratory to provide these capabilities. The SHS has been operational for over two years and currently stores about 100K settings per day into a commercial database management system. The SHS system consists of a server written in Java, client tools written in both Java and C++, and a web interface for querying the database of setting changes. The design of the SHS focuses on performance, portability, and a minimal impact on database resources. In this paper, we present an overview of the system design along with benchmark results showing the performance and reliability of the SHS over the last year.  
 
RPPB24 Processing and Visualization of EPICS Data with MATLAB Applications controls, emittance, SNS 659
 
  • E. Tikhomolov
    TRIUMF, Vancouver
  To conserve control system resources it is often desirable to run compute-intensive real-time data processing applications on a dedicated host computer. In the EPICS-based control system of the ISAC radioactive beam facility, the Extensible Display Manager tool (EDM) is used for the operator interface. EDM screens control data acquisition and processing and provide visualization of the processed data. Matlab is used as the data processing engine. A number of Matlab applications were created in collaboration with the beam physics group. These applications are running on a dedicated Linux host, using EPICS Matlab Channel Access (MCA) to obtain raw data from beam diagnostic IOCs (Linux-based) and store the processed results in the IOC. The raw data are provided to the IOC by fast data acquisition applications through a shared memory interface.  
 
RPPB25 Live Capfast Schematics in the ISAC Control System controls, SNS 662
 
  • R. B. Nussbaumer
    TRIUMF, Vancouver
  The Capfast schematic editor is used to design EPICS IOC runtime databases in the EPICS-based control system of the ISAC radioactive beam facility. This graphical tool provides a view of the database with strong visual cues about the functional behavior of the database elements and their interrelationships, modularity, and hierarchy. The EDM display manager tool is used for the Human-Machine-Interface, providing a graphical view of the accelerator state to machine operators. This paper describes a new tool, Sch2Edl, which combines some of the functionality of Capfast and EDM. Sch2Edl creates a view of the runtime database in a format geared toward the system developer/tester/debugger. Sch2Edl is a perl script that translates a set of Capfast schematic files into a corresponding set of EDM screens. The visual representation of the runtime database on the EDM display is nearly identical to the static Capfast views and hierarchies, but incorporates the display of real-time data. This allows software developers to examine and modify some aspects of a working runtime database in an environment that is rich in visual information.  
 
RPPB29 Requirements and Coherent Realization of the HICAT Control System Functionality for Test, Commissioning, and Operation controls, ion, synchrotron, linac 674
 
  • R. Baer, M. Schwickert, T. Fleck
    GSI, Darmstadt
  The control system for the HICAT project comprises several rather different functionalities for the whole range of demands starting from tests of single components up to the specified operation mode where the accelerator has to deliver a beam of high-energy ions with requested energy, focus and intensity for tumor treatment. We outline the concept and realization of this system which is capable of fulfilling all those needs within the implemented functions and GUIs. The range of functionality spans from test environments and trace-possibilities for single front-end controllers up to complete integrity tests of the whole accelerator for the designed operation mode. For example, for commissioning of the LINAC division the control system utilizes a 5Hz mode while typical synchrotron cycles last for several seconds and can be used with similar adjustments. In normal operation mode diagnostics like beam current are only evaluated at special times in a cycle, but it is possible to monitor and record these data at high sampling rates in a continuous mode over several hours. Furthermore it is possible to accomplish long-term stability tests of single components during normal operation.  
 
RPPB31 Distributed Timing Diagnostic Applications controls, extraction, kicker, injection 677
 
  • I. Kozsar, J. H. Lewis, J. Serrano, P. Kennerley
    CERN, Geneva
  The CERN timing system delivers events to the accelerator complex via a distribution network to receiver modules located around the laboratory. These modules generate pulses for nearby equipment and interrupts for the local host. Despite careful planning, hardware failure and human error can lead to anomalies within the control system. Diagnosing such errors requires a formal description of the logical and topological timing layout. This paper describes the design and implementation of a suite of timing diagnostic software applications that allow users to quickly diagnose and remedy faults within the CERN timing system.  
 
FOAA01 Automated Diagnosis of Physical Systems controls, monitoring 701
 
  • S. Narasimhan
    UARC, Moffet Field
  Automated diagnosis deals with techniques to determine the cause of any abnormal or unexpected behavior of physical systems. The key issue is that inferences have to be made from the limited sensor information available from the system. Some major categories of diagnostic technologies are rule-based systems, case-based reasoning systems, data-drive learning systems, and model-based reasoning systems among others. In this paper we will briefly introduce these categories and then focus on model-based reasoning. We will present the Hybrid Diagnosis Engine (HyDE) developed at the NASA Ames Research Center and its application to real problems.  
slides icon Slides  
 
FOAB03 Ethernet Based Embedded IOC for FEL Control Systems controls, laser, electron, instrumentation 720
 
  • A. C. Grippo, K. Jordan, S. W. Moore, D. W. Sexton, J. Yan
    Jefferson Lab, Newport News, Virginia
  An Ethernet-based embedded Input Output Controller (IOC) has been developed as part of an upgrade to the control system for the Free Electron Laser Project at Jefferson Lab. Currently most of the FEL systems are controlled, configured, and monitored using a central VME bus-based configuration. These crate-based systems are limited in growth and usually interleave multiple systems. In order to accommodate incremental system growth and lower channel costs, we developed a standalone system, an Ethernet-based embedded controller called the Single Board IOC (SBIOC). The SBIOC is a module that integrates an Altera FPGA and the Arcturus uCdimm Coldfire 5282 Microcontroller daughter card into one module, which can be easily configured for different kinds of I/O devices. The microcontroller is a complete System-on-Module, including highly integrated functional blocks. A real-time operating system, RTEMS, is cross-compiled with EPICS, allowing us to download the RTEMS kernel, IOC device supports, and databases into the microcontroller. This embedded IOC system has the features of a low-cost IOC, free open source RTOS, plug-and-play-like ease of installation, and flexibility.  
slides icon Slides