| Paper | Title | Page |
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| TPPB01 | The PHELIX Control System Based on CS-Framework 3.0 | 163 |
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| The Petawatt High Energy Laser for Ion eXperiments, http://www.gsi.de/forschung/phelix/indexe.html, will offer the unique combination of a high-current, high-energy (GeV/u) heavy-ion beam with a powerful laser beam thus providing the opportunity to investigate a variety of fundamental science issues in the field of atomic physics, nuclear physics, and plasma physics. The PHELIX Control System (PCS) is based on the CS framework, http://wiki.gsi.de/cgi-bin/view/CSframework/WebHome. About 35 additional classes were developed for the PCS and ~250 objects are running distributed on 13 PCs publishing ~10000 process variables. The PCS has been upgraded to version 3.0 recently. In CS 3.0 the entire communication layer has been changed to DIM (Distributed Information Management), which is a light weight protocol for inter-process communication based on TCP/IP, http://www.cern.ch/dim. The PCS was redesigned to make use and profit from the concept of named services. Clients may receive information from a service (observer pattern) or may send a command to a server (command pattern). By these means the implementation of the PCS behaviour with hierarchical state machines was eased. | ||
| TPPB04 | Applications of OPC at BEPCII | 166 |
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| The run-time data and machine parameters of the BEPCII is distributed over different platforms and stored with different softwares. Some is stored in various SCADA logging files, and some is stored in the EPICS archiver files. Now the EPICS data are stored in Oracle. No general method was provided to access these data. The OPC technology can solve this problem. Originally based on Microsoft's OLE COM (component object model) and DCOM (distributed component object model) technologies, the specification defined a standard set of objects, interfaces, and methods for use in process control and manufacturing automation applications to facilitate interoperability. We have developed EPICS/OPC Server and Oracle/OPC Server. With the help of these two servers and SCADA OPC Servers, it’s easy to get the data mentioned above on a Windows system. This paper describes the development of the two OPC servers and OPC applications at BEPCII. | ||
| TPPB05 | The Cryogenic Control System of BEPCII | 169 |
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| A cryogenic system for the superconducting RF cavity (SRFC), superconducting solenoid magnet (SSM), and superconducting quadrupole magnet (SCQ) has been designed and installed in the Beijing Electron-Positron Collider (BEPCII). The cryogenic control system is a fully automatic system using PLCs and EPICS IOCs and consists of three components. One is the Siemens PLC system for compressor control, another is the AB-PLC system for cryogenic equipment control, and they are integrated into the high-level EPICS system. The functions of cryogenic control include process control, PID control loops, real-time data access and data restore, alarm handler, and human–machine interface. The control system can also be automatically recovered from emergency. This paper will describe the BEPCII cryogenic control system, data communication between S7-PLC and EPICS IOCs, and how to integrate the flow control and the low-level interlock with the AB-PLC system and EPICS. | ||
| TPPB06 | The MIRI Imager Ground Support Equipment Control System Based on PCs | 172 |
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| The James Web Space Telescope (JWST) is the successor of Hubble in the infrared. Our division, Dapnia, is in charge of the design and completion of the optomechanical part of the imager called MIRIM, one instrument of JWST, and of its test bench called the Ground Support Equipment (GSE). This GSE consists of a warm telescope simulator, of a model (identical to the flight model) of the imager, of a cryostat to cool the imager down to its operating temperature, and of an infrared detector (1024x1024 pixels). The telescope simulator is composed of several optical components to control (hexapod, 8 motors table, etc.). The major part of the hardware architecture for the control of the IR detector and the telescope simulator is based on PCs and COTS boards. This paper describes the software development and its specificities. ESO software (IRACE and BOB) and EPICS are associated to complete the operator interface. The cryostat control is our homemade supervision system for cryogenics systems based on PLCs, on the WorldFIP Fieldbus network, and on an industrial XPe PC. The tests of the different subsystems have started, and the whole test bench will be operational in summer 2007. | ||
| TPPB07 | First Steps Towards the New Spiral2 Project Control System | 175 |
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| The Spiral2 project at Ganil aims to produce rare ion beams using a uranium carbide target fission process. The accelerator consists of an RFQ followed by a superconducting cavity linac and is designed to provide high-intensity primary beams (deuterons, protons, or heavy ions). The accelerator should be commissioned by the end of 2011, and the first exotic beams are planned for one year later. The control system will be a result of collaboration between several institutes, among which is the Saclay Dapnia division, which has good experience and knowledge with EPICS. Because of its widely used functionalities, EPICS has been chosen as the basic framework for the accelerator control, and people from the other laboratories belonging to the collaboration are progressively acquiring their first experiences with it. The paper first explains the organization of the collaboration, then it describes the basic hardware and software choices for the project. Some preliminary implementations are therefore given. As the project is still in its beginning phase, the paper ends by listing some questions not yet resolved for the control system definition and remaining open to discussion. | ||
| TPPB08 | Present Status of SSRF Control System | 178 |
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| Shanghai Synchrotron Radiation Facility is a third-generation light source with 150MeV LINAC, 3.5Gev booster, and storage ring. The SSRF control system is a hierarchical standard accelerator control system based on EPICS. The VME 64X system and PLCs are used for various low-level device controls and interlock systems. Serial device servers connect serial devices and instrumentation to the Ethernet. All control subsystems are under construction. The hardware and software system development environment has been set up. Most of the subsystem models, such as the digital power supply control and event timing systems, have been set up and are being tested with devices on schedule. The high-level physical application environment has been set up and undergone online testing of device control using MatLab with Accelerator Toolbox and a middle layer. A set of tools (e.g., configuration tools and an alarm handler) has been set up for the center's database. An enhanced distributed archive engine has been created to store data using native XML data type with XML schema for data storage. Various testing results of the control systems for SSRF equipment will be described in this paper. | ||
| TPPB09 | The ALICE Transition Radiation Detector Control System | 181 |
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| The ALICE experiment at the LHC incorporates a transition radiation detector (TRD) designed to provide electron identification in the central barrel at momenta in excess of 2 GeV/c as well as fast (6 us) triggering capability for high transverse momentum (pt > 3 GeV/c) processes. It consists of 540 gas detectors and about 1.2 million electronics readout channels that are digitized during the 2 us drift time by the front-end electronics (FEEs) designed in full custom for on-detector operation. The TRD detector control system (DCS) back end is fully implemented as a detector-oriented hierarchy of objects behaving as finite state machines (FSMs). PVSS II is used as the SCADA system. The front-end part is composed of a 3-layer software architecture with a distributed information management (DIM) server running on an embedded Linux on-detector system pool (about 550 servers) and the so-called InterComLayer interfacing the DIM client in PVSS as well as the configuration database. The DCS also monitors and controls several hundreds of low- and high-voltage channels, among many other parameters. The layout of the system and status on installation and commissioning are presented. | ||
| TPPB10 | Target Diagnostic Instrument-Based Controls Framework for the National Ignition Facility (NIF) | 184 |
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| 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. | ||
| TPPB11 | Status of Control System for RIKEN RI-Beam Factory | 187 |
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| The control system of the RIKEN RI-Beam Factory (RIBF) is based on the Experimental Physics and Industrial Control System (EPICS). To control magnet power supplies of cyclotrons and their beam transport lines, we are using VME and CAMAC as I/O Controllers (IOCs) depending on a kind of their interface boards. To control beam-diagnostic equipment and vacuum systems, small single-board computers mounted with Linux are used as IOCs. Other devices of cyclotrons like RF are controlled by PCs, which are independent systems from EPICS. These details will be reported. Furthermore, we will report about the RIBF beam interlock system using Melsec PLCs. We started beam commissioning of RIBF in July 2006 and succeeded in extracting uranium beam from the Superconducting Ring Cyclotron (SRC), which is the last of the multi-stage accelerators of the RIBF, on March 23, 2007. | ||
| TPPB13 | The Detector Control System for the Electromagnetic Calorimeter of the CMS Experiment at LHC | 190 |
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| The successful achievement of many physics goals of the CMS experiment required the design of an electromagnetic calorimeter (ECAL) with an excellent energy and angular resolution. The choice of the scintillating crystals, photodetectors, and front-end readout electronics of the ECAL has been made according to these criteria. However, certain characteristics of the chosen components imposed challenging constraints on the design of the ECAL, such as the need for rigorous temperature and high voltage stability. For this reason an ECAL Detector Control System (DCS) had to be carefully designed. In this presentation we describe the main DCS design objectives, the detailed specifications, and the final layout of the system. Emphasis is put on the system implementation and its specifc hardware and software solutions. The latest results from final system prototype tests in the 2006 ECAL test-beam program, as well as the system installation and commissioning at the CMS experimental construction site, are also discussed. | ||
| TPPB14 | Status of the ALBA Control System | 193 |
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| 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. | ||
| TPPB15 | The CSNS Controls Plan | 196 |
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| The China Spallation Neutron Source (CSNS) is an accelerator-based high-power project currently under planning in China. For the similarities between the CSNS and the U. S. Spallation Neutron Source (SNS), the SNS control framework will be used as a model for the machine controls. And the software framework used at SNS, XAL, is a natural choice for the CSNS. This paper provides a controls overview and progress. Also, the technical plan, schedule, and personnel plan are discussed. | ||
| TPPB18 | Present Status of VEPP-5 Control System | 199 |
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| As VEPP-5 moves to commissioning, its control system—CX—becomes more mature. CX is a distributed, networked control system based on a 3-layer "standard model." It has been used for VEPP-5 control since 2000; most hardware is CAMAC and CAN-bus. Currently most control programs have switched to modular plugin-based architecture, which significantly eases development of applications and enhances the whole control system integration. Large-data-size control hardware (such as digital oscilloscopes and CCD-cameras) is fully supported by CX now. E-logbook is currently being deployed, both as a web application and with direct support in control programs. GIS technology is being introduced to the control system, which opens many interesting possibilities. | ||
| TPPB19 | A GUI Builder Environment Based on LabVIEW for the Virgo Project | 202 |
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The Virgo project consists of a suspended Michelson Interferometer with two 3-km-long arms aiming to detect gravitational wave signals from cosmic sources. In order to support the ongoing Virgo commissioning activities and facilitate the transition to full operational mode, the need for new, quickly built, flexible, and graphically rich Graphical User Interfaces (GUI) arose. The challenge was to set up a GUI building environment able to deal with those requirements and to smoothly integrate it with the existing distributed control software framework. We have been able to fulfill these requirements by using LabVIEW and by enhancing its functionalities within three main components: a LabVIEW interface to the Virgo control framework, similarly to what has been done for other frameworks such as EPICS or Tango*, **; a common functions library; and a common building blocks. This GUI building environment required an initial effort of customization by establishing the right methodology and implementing the basic components, but has enabled the building of new GUIs with a high level of flexibility and maintainability.
* D. Thompson and W. Blokland, “A Shared Memory Interface between LabVIEW and EPICS,” ICALEPCS 2003. ** J-M Chaize et al., The ESRF Tango Control System Status, ICALEPCS 2001. |
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| TPPB20 | SSRF Beam Instrumentations System | 205 |
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| SSRF is equipped with various beam instrumentations, in which the Linac part has been working well since the start of the commissioning this year, and the booster and storage ring parts are still under implementation and commissioning. The commercial products were adopted to build this system as much as possible. The all-in-one electron beam position monitor processor, Libera, was used for whole facility to provide single-pass, first-turn, turn-by-turn, COD, and fast application beam position data. The Bergoz NPCT175 parametric current transformers were used for DC current measurement in the booster and storage ring. The various optical beam diagnostic systems, such as synchrotron radiation interferometers for precise beam-size measurement, the fast gated camera, and the bunch length monitor will be equipped in the dedicated diagnostics beam line. Data acquisition for beam instrumentation system should be a part of control system, developed on an EPICS platform. There are three kinds of Input Output Controllers (IOCs) used in diagnostics: VxWorks-based VME IOCs, Linux-based Libera IOCs, and Windows-based PC IOCs. | ||
| TPPB22 | Design of the Control and Data Acquisition System for the Neutron Spin Echo Spectrometer at the Spallation Neutron Source | 208 |
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| The Jülich Centre for Neutron Science (JCNS) is constructing a new “best-of-class” Neutron Spin Echo Spectrometer (NSE) at the Spallation Neutron Source (SNS) in Oak Ridge. Using superconducting precession coils, energy resolutions of 0.7 neV can be achieved with the new instrument, which will start commissioning in autumn 2008. Recently, JCNS constructed an NSE at its branch lab at the FRM-II reactor in Garching. This so-called JNSE is in its commissioning phase now, and its control and data acquisition system is based on the “Jülich-Munich Standard.” The “Jülich-Munich Standard” includes the TACO control system developed by the ESRF and the extensive use of industrial-type front-end equipment, e.g., PLCs, fieldbus systems (PROFIBUS DP), or remote I/Os. Since there are a lot of components and structures that are common for both instruments, the same technology shall be used for the SNS-NSE, of course. On the other hand, local SNS standards have to be supported since the SNS-NSE shall fit into the DAQ-infrastructure of the SNS, e.g., regarding data formats, interface to the timing system, or the ability to include local sample environments. | ||
| TPPB23 | LHC Powering Circuit Overview: A Mixed Industrial and Classic Accelerator Control Application | 211 |
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| 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 | 214 |
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| 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. | ||
| TPPB27 | The New Control System for the Future Low-Emittance Light Source PETRA 3 at DESY: Sprinting to the Finish | 217 |
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| At DESY the existing high-energy physics booster synchrotron PETRA 2 will be transformed into a third-generation light source (PETRA 3). In addition, the technical systems and components of the pre-accelerators LINAC 2 and DESY 2 will be improved. Within the scope of this project, the control system and the front-end electronics will be upgraded. Besides a report on the current project's status, the paper emphasizes the basic conceptual ideas and discusses their implications and how they lead to novel features and development tools. | ||
| TPPB28 | Preliminary Design Concepts for the Control and Data Acquisition Systems of the ITER Neutral Beam Injector and Associated Test Facility | 220 |
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| ITER is a joint international research and development project aiming to demonstrate the scientific and technical feasibility of fusion power. The ITER Neutral Beam Injector (NBI, negative D2 ion source, 1MV acceleration voltage, 40A ion current, 16.5MW beam power, 1 hour continuous operation) is a major component of ITER and will be supported by a dedicated test facility (NBTF). The NBI and the NBTF are being designed with the goal to have one injector fully operational on the ITER device in 2016. The two items need separate, but closely interacting, control and data acquisition systems (CDAs). The NBI CDA system will manage the NBI device and will be installed at the ITER site; the NBTF CDA system will manage the test facility and in particular will enable extensive scientific exploitation of the NBI before its final installation at the ITER site. The paper reports on the design activity for both CDA systems, including the definition of the system requirements, the functional system structure, and the preliminary system architecture. | ||
| TPPB29 | The OPC-Based System at SNS: An EPICS Supplement | 223 |
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| The Power Monitoring System at the Spallation Neutron Source (SNS) is a Windows-based system using OLE for Process Control (OPC) technology. It is employed as the primary vehicle to monitor the entire SNS Electrical Distribution System. This OPC-based system gathers real-time data, via the system's OPC server, directly from the electrical devices: substations, generators, and Uninterruptible Power Supply (UPS) units. Thereupon, the OPC-EPICS softIOC interface reads and sends the data from the OPC server to EPICS, the primary control system of SNS. This interface provides a scheme for real-time power data to be shared by both systems. Unfortunately, it engenders obscure anomalies that include data inaccuracy and update inconsistency in EPICS. Nevertheless, the OPC system supplements the EPICS system with user-friendly applications—besides the ability to compare real-time and archived data between the two systems—that enable performance monitoring and analysis with ease. The OPC-based system at SNS is a complimentary system to EPICS. | ||
| TPPB30 | How to Use a SCADA for High-Level Application Development on a Large-Scale Basis in a Scientific Environment | 226 |
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For high-level applications development, SOLEIL adopted GlobalSCREEN, a professional Java SCADA, developed by the ORDINAL company*. This environment enables end users to quickly build user-friendly GUIs without writing any Java code and by drag-dropping reusable graphical components developed by the software control team. These components are made up on top of the ATK** library, which provides a rich set of graphical widgets, including scientific data visualization tools, and already encapsulating communication with the Tango software bus. This way, SOLEIL can allow its users to lay out their supervisory applications with a homogenous look and feel and benefit (as they are natively provided by GlobalSCREEN) from functionalities such as access right management, web access, and remote administration at a minimal development cost. An original organization has been set up to deal with this collaborative work between “pure software developers” and “occasional” supervision applications developers. The work organization, the software architecture, and the design of the whole system will be presented, as well as the current status of deployment at SOLEIL for accelerators and for beamlines.
* http://www.ordinal.fr/** Application Tango Toolkit |
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| TPPB31 | Status of the SOLEIL Control System | 229 |
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| The SOLEIL synchrotron light source is based on a 2.75 GeV electron storage ring that was commissioned in 2006 at Saint Aubin, France. The first 10 beamlines are currently commissioned, and regular user operation is planned for summer 2007. SOLEIL is also the first 100% TANGO-controlled facility. Originally developed at the ESRF, the object-oriented TANGO Control Framework is now the core component of a close collaboration between four synchrotron facilities: ESRF, SOLEIL, ELETTRA, and ALBA. The SOLEIL control system is an example of the TANGO capability of federating heterogeneous off-the-shelf technologies into a coherent whole on the basis of a single concept: the device. The aim of the presentation is to provide an overview of the “Service-Oriented Architecture,” which is now routinely used for the control of both the SOLEIL accelerators and beamlines. The ubiquity of the TANGO services will be illustrated on both server and client sides of the control system architecture. The main software subsystems will be presented. We will conclude with a feedback report by presenting some figures and statistics about the control system's stability after its first year of operation. | ||
| TPPB32 | EPICS at the Synchrotron Radiation Source DELTA | 232 |
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| 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 | 235 |
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| 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. | ||
| TPPB35 | The Control System for the TITAN Experiment at ISAC | 238 |
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| The TITAN experiment at the ISAC radioactive beam facility consists of an RF cooler system, a Magnetic Penning Trap (MPET), and an Electron Beam Ion Trap (EBIT). These three systems may run together or independently. This paper describes the EPICS-based TITAN control system, which was modeled after the ISAC control system to facilitate integration. Both software and hardware configurations will be described, with emphasis on pulsed diagnostics and the pulse distribution system for synchronizing the traps in different operation modes. | ||
| TPPB37 | Status of the MLS Control System | 241 |
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| The Physikalisch-Technische Bundesanstalt (PTB), the German national metrology institute, has set up in close cooperation with BESSY a low-energy electron storage ring next to the BESSY II site. The new storage ring, named "Metrology Light Source"(MLS), is mainly dedicated to metrology and technological developments in the UV and VUV spectral range. Its commissioning started in March 2007. The MLS control system is based on the Experimental Physics and Industrial Control System (EPICS) toolkit. Design and implementation choices guided by the experiences with the BESSY II control system have been flanked by other techniques and new approaches where needed and appropriate. The presentation introduces the MLS and discusses design and implementation of its control system. | ||
| TPPB38 | Status of the ERLP Control System | 244 |
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| The Energy Recovery Linac Prototype (ERLP) is a 35 Mev superconducting linac currently being commissioned at Daresbury Laboratory. Its purpose is to demonstrate the technology necessary to design and build a 600 Mev energy recovery linac (4GLS), which, together with a suite of XUV, VUV, and IR FELs, can be used to undertake pump-probe experiments to investigate dynamic systems. The ERLP control system is based on EPICS, VME64x hardware, and the vxWorks operating system. Status control and interlock protection are handled by a Daresbury-designed CANbus system that has been tightly integrated into EPICS. Construction and commissioning of ERLP have taken place in parallel, and this introduced a number of problems in the planning and implementation of the control system. This paper describes the ERLP control system and disusses the successes and difficulties encountered during the early phases of commissioning. Plans are already in place to extend the control system to cover EMMA, a novel, non-scaling, fixed-field alternating gradient (FFAG) accelerator that will be added to ERLP in 2008/9. | ||
| TPPB39 | Experiences with an Industrial Control System: Traceability of Specifications, Commissioning Support and Conclusions from the HICAT Project | 247 |
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| 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. | ||
| TPPB40 | The TILECAL Detector Control System | 250 |
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| TILECAL is the barrel hadronic calorimeter of the ATLAS detector. The main task of the TILECAL Detector Control System (DCS) is to enable the coherent and safe operation of the detector. All actions initiated by the operator and all errors, warnings, and alarms concerning the hardware of the detector are handled by DCS. Most of the components were already produced and installed in the detector. The SCADA software used is PVSS from the Austrian company ETM. The TILECAL main DCS systems are the low- voltage power supply system, high-voltage distribution system, and cooling of the electronics. All functional blocks can run autonomously. The DCS for the TILECAL is divided in four sectors all identical in the logical point of view, two for the extended barrel regions and two the central region. Each sector is composed by one cooling, HV and LV partition. All these systems are now being implemented and some are already in use for the TILECAL tests and certification. The integration with the global ATLAS DCS system is done by an FSM based on CERN SMI++ which is already in use since December of 2006. | ||
| TPPB41 | NSLS II Control System Overview | 253 |
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| The NSLS II is a new light source to be built at Brookhaven National Laboratory. The control system tools will be started this year. Technical areas of interest to improve productivity, maintainability, and performance, include Relational Database tools to support all aspects of the project, online Bbam modelling, intelligent distributed device controllers, and engineering and operation tools. We will discuss our goals and projects to make progress in these areas. | ||
| TPPB42 | The Selection, Development and Application of PLC Solutions for the Diamond Light Source | 256 |
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| Diamond Light Source set out to address a wide range of control system requirements, from process control to interlocking with a minimum number of PLC types. This resulted in standardization of PLCs from just two manufacturers. Siemens was chosen for high-end process control and Omron for a variety of other applications, including interlocking and protection. These were then applied to a large number of applications, which have been addressed wherever possible using standard solutions. The details of this approach, and solutions managed through it, including procurement of turnkey systems by industry, and how future obsolescence is being addressed are all described. |