Paper | Title | Other Keywords | Page |
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WEC3 | Overview and Status of the SHINE Control System | controls, interface, data-acquisition, software | 11 |
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The high-gain free electron lasers have given scientists hopes for new scientific discoveries in many frontier research areas. The Shanghai HIgh repetition rate XFEL aNd Extreme light facility (SHINE) was proposed by the central government of P.R. China on April 2017, which is a quasi-continuous wave hard X-ray free electron laser facility. The control system is responsible for the facility-wide device control, data acquisition, machine protection, high level database or application, as well as network and computing platform. It will be mainly based on EPICS to reach the balance between the high performance and costs of maintenance. The latest technology will be adopted for the high repetition rate data acquisition and feedback system. The details of the control system design will be reported in this paper. | |||
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Slides WEC3 [7.255 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-WEC3 | ||
About • | paper received ※ 25 September 2018 paper accepted ※ 15 October 2018 issue date ※ 21 January 2019 | ||
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WEP08 | A Universal System Based on WebSocket and JSON for the Employment of LabVIEW External Drivers | LabView, controls, software, power-supply | 47 |
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One of the heaviest workloads when installing a Control System on a plant is the development of a large number of device drivers. This is even more true in the case of scientific facilities for which you typically deal with many custom devices and legacy code. In these cases, it is useful to consider the Rapid Application Development (RAD) approach that consists in lessen the planning phase and give more emphasis on an adaptive process, so that software prototypes can be successfully used in addition to or in place of design specifications. LabVIEW* is a typical RAD-oriented development tool and is widely used in technical laboratories where many stand-alone programs are developed to manage devices under construction or evaluation. An original system that allows software clients to use external LabVIEW drivers is presented. This system, originally created for the !CHAOS Control System**, is entirely written in LabVIEW and is based on JSON messages -transmitted on a WebSocket communication- driving LabVIEW VIs through dynamic calls. This system is completely decoupled from the client and is therefore suitable for any Control System.
*LabVIEW: http://www.ni.com ** L. Catani et al, Phys. Rev. ST Accel. Beams 15, 112804 (2012). Introducing a New Paradigm for Accelerators and Large Experimental Apparatus Control Systems. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-WEP08 | ||
About • | paper received ※ 10 October 2018 paper accepted ※ 15 October 2018 issue date ※ 21 January 2019 | ||
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WEP10 | Update on the Status of the FLUTE Control System | controls, EPICS, hardware, electron | 54 |
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The first phase of FLUTE, a new linac based test facility and THz source is currently being commissioned at the Karlsruhe Institute of Technology (KIT). It consist of an RF photo gun and a traveling wave linac accelerating electrons to beam energies of 40 to 50 MeV. The control system is based on a virtualized infrastructure running Ubuntu Linux and Linux KVM. As base for the SCADA system we use EPICS 3.15 with Control System Studio (CSS) for the GUI. The long term data storage is provided by a Cassandra NoSQL database. This contribution will present the architecture and the current status of the FLUTE control system. | |||
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Poster WEP10 [1.256 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-WEP10 | ||
About • | paper received ※ 21 September 2018 paper accepted ※ 15 October 2018 issue date ※ 21 January 2019 | ||
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THCA4 | Development of a Network-based Timing and Tag Information Distribution System for Synchrotron Radiation Experiments at SPring-8 | timing, FPGA, software, experiment | 131 |
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Time-resolved measurements in synchrotron radiation experiments require an RF clock of a storage ring accelerator and a fundamental revolution frequency (zero address) signal. For the usage of these signals around the experimental station, long RF cables from the accelerator timing station, divider modules and delay modules must be deployed. These installations need a lot of cost and require a lot of efforts to adjust the timing by experts. To lower these costs and efforts, the revolution frequency, which is ~209 kHz at the SPring-8 storage ring, and tag information distribution system has been studied based on a high precision time synchronization technology over a network. In this study, the White Rabbit* (WR) technology is adopted. The proof of concept system has been built, which consists of a master PC, a slave PC and two WR switches. The master PC detects the zero-address signal and distributes the time stamps with tag information to the slave PC. Then the slave PC generates the ~209 kHz signals synchronized with the target bunch by adding the offset time by software. The measured one-σ jitter of the output signals from the slave PC has been achieved less than 100 ps.
* https://www.ohwr.org/projects/white-rabbit |
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Slides THCA4 [3.309 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THCA4 | ||
About • | paper received ※ 09 October 2018 paper accepted ※ 15 October 2018 issue date ※ 21 January 2019 | ||
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THCA5 | Rethinking PLCs: Industrial Ethernet for Large-Scale Real-Time Distributed Control Applications | PLC, controls, hardware, software | 136 |
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Funding: Extreme Light Infrastructure - Phase 2 (CZ.02.1.01/ 0.0/0.0/15008/0000162; Ministry of Education, Youth and Sports CZ / European Regional Development Fund) Many research facilities rely on PLCs to automate large slow systems like vacuum or HVAC, where price, availability and reliability matter. The dominant architecture consists of local units of controllers/ modules (programmed in IEC61131-3 languages), which operate mostly autonomously from a SCADA layer. While some vendors provide low-level stacks to encourage growth of their ecosystems, PLC programming remains largely within a closed, proprietary world. In this paper, we introduce a different way of thinking about PLC hardware. Working with the open stacks intended for the design of new EtherCAT (Beckhoff) / Powerlink (B&R) modules, we built an abstract C+± API to control the existing ones. These industrial ethernet busses can be propagated using standard network hardware, so any RT-Linux system can now control any PLC module from anywhere in our facility using high-level languages (C++, LabVIEW). This way, PLC modules are seamlessly integrated into our distributed TANGO-based control system. PC-PLC interfaces are no longer needed; or in the case of traditionally implemented subsystems (machine safety), trivial. |
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Slides THCA5 [2.456 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THCA5 | ||
About • | paper received ※ 18 October 2018 paper accepted ※ 25 April 2019 issue date ※ 21 January 2019 | ||
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THCB5 | Intelligent Controls and Modeling for Particle Accelerators and Other Research and Industrial Infrastructures | controls, electron, FEL, linac | 156 |
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We give some perspective on the present state of intelligent control for particle accelerators. This is based on our experience over the past 14 years in developing artificial-intelligence-based tools specifically to address modeling and control challenges found in particle accelerator systems.
[1] E. Meier et al., NIM A: 632. 1 (2011): 1-6; [2] S. G. Biedron et al., "Advanced Controls for RF and Directed Energy Systems," 18th Annual Directed Energy Symposium, 2016. [3] A. L. Edelen et al., IEEE Trans. on Nuclear Science 63(2), 878-897., [4] A. Edelen et al., in Proc. IPAC’18, Vancouver, Canada, 2018. doi:10.18429/JACoW-IPAC2018-THYGBE1 |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THCB5 | ||
About • | paper received ※ 14 November 2018 paper accepted ※ 25 April 2019 issue date ※ 21 January 2019 | ||
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