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Other Keywords |
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| TUP001 |
Generic VME Interface for Linux 2.6 Kernels
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controls, target, fibre-optics |
77 |
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- A. Homs, F. Sever
ESRF, Grenoble
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From the beginning of the ESRF both the machine and beamline control instrumentations were based on VME diskless crates equipped with Motorola CPU boards running OS-9. The TACO client-server architecture was used for distributed control. Several modernization steps were performed to migrate from OS-9 to Linux running either on the VME CPU, or on a remote industrial PC connected to the crate using a PCI/VME bus coupler. An initial implementation of a generic VME driver interface was developed for Linux 2.4 which allowed the same VME driver code to work on the different platforms. This work presents the complete re-writing of the above VME layer to fully conform to the abstract bus/device interface provided in Linux 2.6. The new subsystem clearly separates the rolls of VME hosts, controlling the target VME bus, and VME devices, using generic bus functionality exported by the hosts. This structure supports safe hot-plug operations in multi CPU systems and IRQ handling, among other features. The existing VME host drivers (SBS Bit3 bus coupler and Tundra Universe II chip) and VME device drivers (for ESRF, Compcontrol and ADAS cards) were successfully ported to this new structure.
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Poster
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| TUP004 |
Application of AS-Interface to a Small Angle Neutron Scattering Experiment
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controls, scattering, collimation, diagnostics |
85 |
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- H. Kleines, F. Suxdorf
FZJ, Jülich
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AS-Interface according to IEC 62026-2 is a simple low level field bus system that is well established in industrial automation. It is designed for the easy connection of simple sensors and actuators like switches or valves and can be seen as a low level complement to primary fieldbus systems like PROFIBUS or DeviceNet. Although it is a well established and proven industrial technology, it is rarely seen in research application. In order to simplify cabling and improve overall diagnostics, Forschungszentrum Jülich introduced AS-Interface into the control system of the small angle neutron scattering experiment KWS1. The paper gives an overview of the AS-I technology. The control system of KWS1 and experiences with AS-I are presented.
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Slides
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Poster
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| TUP021 |
The HTTP 'Black Box' Protocol for Control and Data Acquisition at JET
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controls, monitoring, background, site |
131 |
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- C. H.A. Hogben, M. Beldishevski, S. Griph, P. J.L. Heesterman, K. Kneupner, R. M.A. Lucock
EFDA-JET, Abingdon, Oxon
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The CODAS department of the Joint European Torus project has developed an application protocol for centralised simultaneous data acquisition, control and monitoring of a large number of processors. It is developed around the easy-to-use HTTP standard. The protocol has now been in use for about 5 years. It is intended to allow parallel, collaborative, developments to take place, by defining communication interfaces between systems. For this reason, it is referred to as the 'Black Box' protocol. The paper outlines the main factors that led to this protocol choice, and the benefits and experience gained. The paper briefly describes the functionality of the protocol, and explains how these are being used on a variety of platforms, including Windows, Linux, Solaris, VME, and PLCs.
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Slides
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Poster
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| WEP006 |
BeamView - A Data Acquisition System for Optical Beam Instrumentation
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controls, ion, linac, radiation |
180 |
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- R. Haseitl, C. A. Andre, F. Becker, P. Forck
GSI, Darmstadt
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At the GSI accelerator facility, several optical beam instrumentation devices for transversal profile measurement are installed. Their readout is done with FireWire CCD cameras attached to a small embedded device, specialized for image processing tasks (National Instruments Compact Vision System 1456). Here a LabView application preprocesses the images based on user requests. The resulting data (e.g. projections, histograms, compressed or original images) is sent over ethernet to a Windows or Linux PC, reaching frame rates above 30fps at VGA resolution. Using C++ with Qt libraries for networking and GUI purposes, platform independence without source code modification is achieved. In this paper we present the system components and software design to control CCD cameras and various other devices with an easy-to-use graphical user interface for machine operators.
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Slides
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Poster
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| WEP007 |
FESA - The Front-End Software Architecture at FAIR
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controls, diagnostics, ion, monitoring |
183 |
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- T. Hoffmann
GSI, Darmstadt
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The planned Facility for Antiproton and Ion Research (FAIR) at GSI in Darmstadt is a very challenging task due to its dimension and complexity. Several new heavy ion accelerators have to be built and then operated in parallel and multiplexed modes. In order to cope with these unique requirements numerous collaboration partners are involved to add so-called ”in-kind contributions” to the project. Detailed guidelines and interface specifications have to be defined in advance to avoid an indefinite pool of different technologies which have to be handled by the future control system. For that purpose, GSI decided to use the Front-end Software Architecture (FESA) at the lowest level of the control system. FESA was developed by CERN and is already established for usage at LHC and its injectors. It is a framework to integrate any kind of equipment such as beam instrumentation devices, magnet power supplies, vacuum- and cryogenic components into the control system. A framework overview, its advantages, and boundary conditions provided by FESA are described.
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Slides
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Poster
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| WEP016 |
MicroIOC LR-BPM - Beam Position Monitor Solution
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controls, pick-up, monitoring, linac |
204 |
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