ICALEPCS2017 - List of Keywords (real-time)

Paper	Title	Other Keywords	Page
MOCPL05	ECMC, the Open Source Motion Control Package for EtherCAT Hardware at the ESS	ion, controls, EPICS, hardware	71
	T. Gahl, D.P. Brodrick, T. Bögershausen, O. Kirstein, T. Korhonen, D.P. Piso, A. Sandström ESS, Lund, Sweden
	In industry the open standard EtherCAT* is well established as a real-time fieldbus for largely distributed and synchronised systems. Open source solutions for the bus master have been first introduced in scientific installations by Diamond Light Source and PSI using EtherCAT hardware for digital and analog I/Os. The European Spallation Source (ESS) decided to establish open source EtherCAT systems for mid-performance data acquisition and motion control on accelerator applications. In this contribution we present the motion control software package ECMC developed at the ESS using the open source Etherlab* master to control the EtherCAT bus. The motion control interfaces with a model 3 driver to the EPICS motor record supporting it's functionalities like positioning, jogging, homing and soft/hard limits. Advanced functionalities supported by ECMC are full servo-loop feedback, a scripting language for custom synchronisation of different axes, virtual axes, externally triggered position capture and interlocking. On the example of prototyping a 2-axis wire scanner we show a fully EPICS integrated application of ECMC on different EtherCAT and CPU hardware platforms. * http://www.ethercat.org R. Mercado, I. J. Gillingham, J. H. Rowland, K. Wilkinson "Integrating EtherCAT based IO into EPICS at Diamond." ICALEPCS 2011, Grenoble 2011 * http://www.etherlab.org
	Talk as video stream: https://youtu.be/SuQiKSMbfvs
	Slides MOCPL05 [1.081 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-MOCPL05
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MODPL03	Experience Upgrading Control Systems at the Gemini Telescopes	ion, software, controls, EPICS	99
	A.J. Nunez, I. Arriagada, T.D. Gaggstatter, P.E. Gigoux, R. Rojas, M. Westfall Gemini Observatory, Southern Operations Center, La Serena, Chile R. Cardenes, M.J. Rippa Gemini Observatory, Northern Operations Center, Hilo, USA
	The real-time control systems for the Gemini Telescopes were designed and built in the 1990s using state-of-the-art software tools and operating systems of that time. These systems are in use every night, but they have not been kept up-to-date and are now obsolete and also very labor intensive to support. This led Gemini to engage in a major effort to upgrade the software on its telescope control systems. We are in the process of deploying these systems to operations, and in this paper we review the experience and lessons learned through this process and provide an update on future work on other obsolescence management issues.
	Talk as video stream: https://youtu.be/kGtexyeU2S8
	Slides MODPL03 [59.483 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-MODPL03
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TUCPA06	SwissFEL - Beam Synchronous Data Acquisition - The First Year	ion, FEL, data-acquisition, MMI	276
	S.G. Ebner, H. Brands, B. Kalantari, R. Kapeller, F. Märki, L. Sala, C. Zellweger PSI, Villigen PSI, Switzerland
	The SwissFEL beam-synchronous data-acquisition system is based on several novel concepts and technologies. It is targeted on immediate data availability and online processing and is capable of assembling an overall data view of the whole machine, thanks to its distributed and scalable back-end. Load on data sources is reduced by immediately streaming data as soon as it becomes available. The streaming technology used provides load balancing and fail-over by design. Data channels from various sources can be efficiently aggregated and combined into new data streams for immediate online monitoring, data analysis and processing. The system is dynamically configurable, various acquisition frequencies can be enabled, and data can be kept for a defined time window. All data is available and accessible enabling advanced pattern detection and correlation during acquisition time. Accessing the data in a code-agnostic way is also possible through the same REST API that is used by the web-frontend. We will give an overview of the design and specialities of the system as well as talk about the findings and problems we faced during machine commissioning.
	Slides TUCPA06 [5.107 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUCPA06
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TUPHA021	Experiences Using Linux Based VME Controller Boards	ion, Linux, EPICS, controls	420
	D. Zimoch, D. Anicic PSI, Villigen PSI, Switzerland
	For many years, we have used a commercial real-time operating system to run EPICS on VME controller boards. However, with the availability of EPICS on Linux it became more and more charming to use Linux not only for PCs, but for VME controller boards as well. With a true multi-process environment, open source software and all standard Linux tools available, development and debugging promised to become much easier. Also the cost factor looked attractive, given that Linux is for free. However, we had to learn that there is no such thing as a free lunch. While developing EPICS support for the VME bus interface was quite straight forward, pitfalls waited at unexpected places. We present challenges and solutions encountered while making Linux based real-time VME controllers the main control system component in SwissFEL.
	Poster TUPHA021 [1.040 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA021
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TUPHA032	Parallel Processing for the High Frame Rate Upgrade of the LHC Synchrotron Radiation Telescope	ion, controls, radiation, synchrotron	442
	D. Alves, E. Bravin, G. Trad CERN, Geneva, Switzerland
	The Beam Synchrotron Radiation Telescope (BSRT) is routinely used for estimating the transverse beam size, pro'le and emittance in the LHC; quantities playing a crucial role in the optimisation of the luminosity levels required by the experiments. During the 2017 LHC run, the intensi'ed analog cameras used by this system to image the beam have been replaced by GigE digital cameras coupled to image intensi'ers. Preliminary tests revealed that the typically used sub-image rectangles of 128×128 pixels can be acquired at rates of up to 400 frames per second, more than 10 times faster than the previous acquisition rate. To address the increase in CPU workload for the image processing, new VME CPU cards (Intel 4 core/2.5GHz/8GB RAM) are envisaged to be installed (replacing the previous Intel Core 2 Duo/1.5GHz/1GB RAM). This paper focuses on the software changes proposed in order to take advantage of the multi-core capabilities of the new CPU for parallel computations. It will describe how beam profile calculations can be pipe-lined through a thread pool while ensuring that the CPU keeps up with the increased data rate. To conclude, an analysis of the system performance will be presented.
	Poster TUPHA032 [1.673 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA032
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TUPHA040	Development of Real-Time Data Publish and Subscribe System Based on Fast RTPS for Image Data Transmission	ion, network, diagnostics, experiment	473
	G.I. Kwon, J.S. Hong, T.G. Lee, W.R. Lee, J.S. Park, T.H. Tak NFRI, Republic of Korea
	Funding: This work was supported by the Korean Ministry of Science ICT & Future Planning under the KSTAR project. In fusion experiment, real-time network is essential to control plasma real-time network used to transfer the diagnostic data from diagnostic device and command data from PCS(Plasma Control System). Among the data, transmitting image data from diagnostic system to other system in real-time is difficult than other type of data. Because, image has larger data size than other type of data. To transmit the images, it need to have high throughput and best-effort property. And To transmit the data in real-time manner, the network need to has low-latency. RTPS(Real Time Publish Subscribe) is reliable and has Quality of Service properties to enable best effort protocol. In this paper, eProsima Fast RTPS was used to implement RTPS based real-time network. Fast RTPS has low latency, high throughput and enable to best-effort and reliable publish and subscribe communication for real-time application via standard Ethernet network. This paper evaluates Fast RTPS about suitability to real-time image data transmission system. To evaluate performance of Fast RTPS base system, Publisher system publish image data and multi subscriber system subscribe image data. * giilkwon@nfri.re.kr, Control team, National Fusion Research Institute, Daejeon, South Korea
	Poster TUPHA040 [8.164 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA040
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TUPHA080	New Data Acquisition System Implemented Based on MTCA.4 Form Factor for KSTAR Diagnostic System	ion, diagnostics, controls, site	593
	T.G. Lee, J.S. Hong, G.I. Kwon, W.R. Lee, T.H. Tak NFRI, Daejon, Republic of Korea
	In Korea Superconducting Tokamak Advanced Research (KSTAR), various diagnostics systems were operated from the first plasma in 2008. Many diagnostic devices have been installed for measuring the various plasma properties such as plasma current, magnetic current, electron density, electron temperature, impurity, and so on. The DAQ system for measuring the various plasma properties were developed with various form factor digitizer such as VME, CPCI, PXI, VXI. and PCIe. These complicated form factors installed on KSTAR have difficulties with hardware management, software management and performance upgrades. In order to control real-time systems using several diagnostic signals, the real-time control system is required to share the data without delay between the diagnostic measurement system and the real-time control system without branch one signal. Therefore, we developed the Multifunction Control Unit (KMCU) as the standard control system MTCA.4 form-factor and implemented the various diagnostic DAQ system using KMCU V2, that is KMCU-Z30. This paper will present the implementation of KSTAR diagnostic DAQ systems configured with KMCU based on MTCA.4 and their operating results.
	Poster TUPHA080 [1.779 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA080
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TUPHA092	Two Years of FAIR General Machine Timing - Experiences and Improvements	ion, network, timing, controls	633
	M. Kreider, R. Bär, D. Beck, A. Hahn, N. Kurz, C. Prados, S. Rauch, M. Reese, M. Zweig GSI, Darmstadt, Germany M. Kreider Glyndŵr University, Wrexham, United Kingdom
	The FAIR General Machine Timing system has been in operation at GSI since 2015 and significant progress has been made in the last two years. The CRYRING accelerator was the first machine on campus operated with the new timing system and serves as a proving ground for new control system technology to this day. A White Rabbit (WR) network was set up, connecting parts of the existing facility. The Data Master was put under control of the LSA physics core. It was enhanced with a powerful schedule language and extensive research for delay bound analysis with network calculus was undertaken. Several form factors of Timing Receivers were improved, their hard and software now being in their second release and subject to a continuous series of automated long- and short-term tests in varying network scenarios. The final goal is time-synchronization of 2000-3000 nodes using the WR Precision-Time-Protocol distribution of TAI time stamps and synchronized command and control of FAIR equipment. Promising test results for scalability and accuracy were obtained when moving from temporary small lab setups to CRYRING's control system with more than 30 nodes connected over 3 layers of WR Switches.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA092
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TUPHA152	Towards a Time-Constrained Service-Oriented Architecture for Automation and Control in Large-Scale Dynamic Systems	ion, controls, software, PLC	760
	G. Chen, B.R. An CAEP, Sichuan, People's Republic of China
	Funding: This work is supported by National Natural Science Foundation of China(61333003) and Science and Technology Development Foundation of China Academy of Engineering Physics (14-FZJJ-0422). Rapidly changing demands for interoperability among heterogeneous systems leads to a paradigm shift from pre-defined control strategies to dynamic customization within many automation systems, e.g., large-scale scien-tific facilities. However, today's mass systems are of a very static nature. Fully changing the control process requires a high amount of expensive manual efforts and is quite error prone. Hence, flexibility will become a key factor in the future control systems. The adoption of web services and Service-Oriented Architecture (SOA) can provide the requested capability of flexibility. Since the adaptation of SOAs to automation systems has to face time-constrained requirements, particular attention should be paid to real-time web services for deterministic behaviour. This paper proposes a novel framework for the integration of a Time-Constrained SOA (TcSOA) into mass automation systems. Our design enables service encapsulation in filed level and evaluates how real time technologies can be synthesized with web services to enable deterministic performance.
	Poster TUPHA152 [0.438 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA152
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TUPHA164	Evaluation of Model Based Real Time Feedback Control System on Plasma Density	ion, controls, plasma, software	794
	W.R. Lee, J.S. Hong, G.I. Kwon, T.G. Lee, T.H. Tak NFRI, Daejon, Republic of Korea
	"Design and implementation of a standard framework for KSTAR control system", FED, Volumes 89, 2015 "Designing a common real-time controller for VLT applications", Proc. of SPIE Vol. 5496
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA164
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THCPA06	A Real-Time Beam Monitoring System for Highly Dynamic Irradiations in Scanned Proton Therapy	ion, proton, radiation, monitoring	1224
	G. Klimpki, C. Bula, M. Eichin, A.L. Lomax, D. Meer, S. Psoroulas, U. Rechsteiner, D.C. Weber PSI, Villigen PSI, Switzerland D.C. Weber University of Zurich, University Hospital, Zurich, Switzerland
	Funding: This work is supported by the Giuliana and Giorgio Stefanini Foundation. Patient treatments in scanned proton therapy exhibit dead times, e.g. when adjusting beamline settings for a different energy or lateral position. On the one hand, such dead times prolong the overall treatment time, but on the other hand they grant possibilities to (retrospectively) validate that the correct amount of protons has been delivered to the correct position. Efforts in faster beam delivery aim to minimize such dead times, which calls for different means of monitoring irradiation parameters. To address this issue, we report on a real-time beam monitoring system that supervises the proton beam position and current during beam-on, hence while the patient is under irradiation. For this purpose, we sample 1-axis Hall probes placed in beam-scanning magnets and plane-parallel ionization chambers every 10 μs. FPGAs compare sampled signals against verification tables - time vs. position/current charts containing upper and lower tolerances for each signal - and issue interlocks whenever samples fall outside. Furthermore, we show that by implementing real-time beam monitoring in our facility, we are able to respect patient safety margins given by international norms and guidelines.
	Slides THCPA06 [1.841 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THCPA06
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THPHA044	REALTA and pyDART: A Set of Programs to Perform Real Time Acquisition and On-Line Analysis at the FERMI Free Electron Laser	ion, FEL, controls, GUI	1460
	E. Allaria, E. Ferrari, E. Roussel, L. Vidotto Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
	During the optimization phase of the FERMI Free Electron Laser (FEL) to deliver the best FEL pulses to users, many machine parameters have to be carefully tuned, like e.g. the seed laser intensity, the dispersion strength, etc. For that purpose, a new python-based acquisition tool, called REALTA (Real Time Acquisition program), has been developed to acquire various machine parameters, electron beam properties and FEL signals on a shot-by-shot basis thanks to the real time capabilities of the TANGO control system. The data are saved continuously during the acquisition in a HDF5 file. The pyDART (Python Data Analysis Real Time) program is the post-processing tool that enables a fast analysis of the data acquired with REALTA. It allows to study the correlations and dependences between the FEL and electron beam properties and the machine parameters. In this work, we present the REALTA and pyDART toolkit developed for the FERMI FEL.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA044
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THPHA067	EtherCAT based DAQ system at ESS	ion, EPICS, Ethernet, Linux	1536
	J. Etxeberria, J.H. Lee ESS, Lund, Sweden
	The European Spallation Source (ESS) is a multi-disciplinary research facility based on what will be the world's most powerful-pulsed neutron source. The Integrated Control System Division (ICS) is responsible of defining and providing control systems for the ESS facility. This control system will be based on the EPICS and it must be high performance, cost-efficient, safe, reliable and easily maintainable. At the same time there is a strong need for standardization. To fulfill these requirements ICS has chosen different hardware platforms, like MicroTCA, PLC, EtherCAT, etc. EtherCAT, a Ethernet-based real-time fieldbus will be analyzed, and different questions will be answered: -Why has EtherCAT been chosen? -In which cases is it deployed? -How is it integrated into EPICS? -What is the installation process? Along with data acquisition purposes, the ESS Motion Control and Automation Group decided to use EtherCAT hardware to develop an Open Source EtherCAT Master Motion Controller, for the control of all the actuators of the accelerator within the ESS project. Hence, an overview of the open Source Motion Controller and its integration in EPICS will be also presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA067
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THPHA134	Ground Vibration Monitoring at CERN as Part of the International Seismic Network	ion, network, ground-motion, database	1695
	C. Charrondière, M. Cabon, K. Develle, M. Guinchard CERN, Geneva, Switzerland
	The civil engineering activities in the framework of the High Luminosity LHC project, the Geneva GEothermie 2020 and the continuous monitoring of the LHC civil infrastructures triggered the need for the installation of a seismic network at CERN. A 24 bits data acquisition system has been deployed in 3 places at CERN: ATLAS, CMS and the Prévessin site. The system is sending all the raw data to the Swiss Seismological Service and performs FFT on the fly to be stored in the LHC database. The system has shown a good sensitivity of 10^-16 (m/s)2/Hz at 1 Hz.
	Poster THPHA134 [2.775 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA134
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THPHA153	Real-Time Java to Support the Device Property Model	ion, software, controls, operation	1757
	C. Cardin, M.A. Galilée, J.C. Garnier, K.H. Krol, M. Osinski, A. Stanisz, M. Zerlauth CERN, Geneva, Switzerland
	Today's front-end controllers, which are widely used in CERNs controls environment, feature CPUs with high clock frequencies and extensive memory storage. Their specifications are comparable to low-end servers, or even smartphones. The Java Virtual Machine (JVM) has been running on similar configurations for years now and it seems natural to evaluate the behaviour of JVMs on this environment to characterize if Firm or Soft real-time constraints can be addressed efficiently. Using Java at this low-level offers the opportunity to refactor CERNs current implementation of the device/property model and to move away from a monolithic architecture to a promising and scalable separation of the area of concerns, where the front-end may publish raw data that other layers would decode and re-publish. This paper presents first the evaluation of Machine Protection control system requirements in terms of real-time constraints and a comparison of the performance of different JVMs regarding these constraints. In a second part, it will detail the efforts towards a first prototype of a minimal RT Java supervision layer to provide access to the hardware layer.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA153
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THPHA162	Monitoring of CERN's Data Interchange Protocol (DIP) System	ion, monitoring, controls, interface	1797
	B. Copy, E. Mandilara, I. Prieto Barreiro, F. Varela CERN, Geneva, Switzerland
	CERN's Data Interchange Protocol (DIP)* is a publish-subscribe middleware infrastructure developed at CERN to allow lightweight communications between distinct industrial control systems (such as detector control systems or gas control systems). DIP is a rudimentary data exchange protocol with a very flat and short learning curve and a stable specification. It also lacks support for access control, smoothing or data archiving. This paper presents a mechanism which has been implemented to keep track of every single publisher or subscriber node active in the DIP infrastructure, along with the DIP name servers supporting it. Since DIP supports more than 55,000 publications, regrouping hundreds of industrial control processes, keeping track of the system activity requires advanced visualization mechanisms (e.g. connectivity maps, live historical charts) and a scalable web-based interface** to render this information is essential. * W. Salter et al., "DIP Description" LDIWG (2004) https://edms.cern.ch/file/457113/2/DIPDescription.doc ** B. Copy et al., "MOPPC145" - ICALEPCS 2013, San Francisco, USA
	Poster THPHA162 [3.066 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA162
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THPHA180	Visualisation of Real-Time Front-End Software Architecture (FESA) Developments at CERN	ion, software, framework, controls	1853
	A. Topaloudis CERN, Geneva, Switzerland C. Rachex Polytech Grenoble, Saint Martin d'Hères, France
	The Front-End Software Architecture (FESA) framework is the basis for most real-time software development for accelerator control at CERN. FESA designs are defined in an XML document which is validated against a schema to enforce framework constraints, and are used to automatically generate C++ boilerplate code in which the developer can then implement specific code. Design files can rapidly grow in complexity making the overview of the resulting system almost impossible to understand. One way to overcome this is to benefit from a graph-based representation of the design, with XML fragments summarized into logical blocks and association between the blocks depicted by arrows. As the intricacy of the graph is analogous to a potential complex design, it is also essential to provide an interactive Graphical User Interface (GUI) for parameterising and editing the graph generation in order to fine-tune a simpler and cleaner illustration of a FESA design. This paper describes such a GUI (FESA Graph Editor) and outlines how it benefits the design and documentation process of the FESA-design-document.
	Poster THPHA180 [0.987 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA180
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THSH103	Using Color Blindness Simulator During User Interface Development for Accelerator Control Room Applications	ion, simulation, interface, GUI	1958
	S. Aytac DESY, Hamburg, Germany
	For normally sighted developers it is hard to imagine how the user interface is going to look to a color blind person. Our purpose is to draw attention to people with color blindness and to consider their color vision. For that, this paper presents the integration of color blindness simulators into the development process of user interfaces. At the end we discuss the main contributing factors.
	Poster THSH103 [1.168 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THSH103
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Paper

Title

Other Keywords

Page

MOCPL05

ECMC, the Open Source Motion Control Package for EtherCAT Hardware at the ESS

ion, controls, EPICS, hardware

71

T. Gahl, D.P. Brodrick, T. Bögershausen, O. Kirstein, T. Korhonen, D.P. Piso, A. Sandström
ESS, Lund, Sweden

In industry the open standard EtherCAT* is well established as a real-time fieldbus for largely distributed and synchronised systems. Open source solutions for the bus master have been first introduced in scientific installations by Diamond Light Source** and PSI using EtherCAT hardware for digital and analog I/Os. The European Spallation Source (ESS) decided to establish open source EtherCAT systems for mid-performance data acquisition and motion control on accelerator applications. In this contribution we present the motion control software package ECMC developed at the ESS using the open source Etherlab*** master to control the EtherCAT bus. The motion control interfaces with a model 3 driver to the EPICS motor record supporting it's functionalities like positioning, jogging, homing and soft/hard limits. Advanced functionalities supported by ECMC are full servo-loop feedback, a scripting language for custom synchronisation of different axes, virtual axes, externally triggered position capture and interlocking. On the example of prototyping a 2-axis wire scanner we show a fully EPICS integrated application of ECMC on different EtherCAT and CPU hardware platforms.
* http://www.ethercat.org
** R. Mercado, I. J. Gillingham, J. H. Rowland, K. Wilkinson "Integrating EtherCAT based IO into EPICS at Diamond." ICALEPCS 2011, Grenoble 2011
*** http://www.etherlab.org

Talk as video stream: https://youtu.be/SuQiKSMbfvs

Slides MOCPL05 [1.081 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-MOCPL05

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MODPL03

Experience Upgrading Control Systems at the Gemini Telescopes

ion, software, controls, EPICS

99

A.J. Nunez, I. Arriagada, T.D. Gaggstatter, P.E. Gigoux, R. Rojas, M. Westfall
Gemini Observatory, Southern Operations Center, La Serena, Chile
R. Cardenes, M.J. Rippa
Gemini Observatory, Northern Operations Center, Hilo, USA

The real-time control systems for the Gemini Telescopes were designed and built in the 1990s using state-of-the-art software tools and operating systems of that time. These systems are in use every night, but they have not been kept up-to-date and are now obsolete and also very labor intensive to support. This led Gemini to engage in a major effort to upgrade the software on its telescope control systems. We are in the process of deploying these systems to operations, and in this paper we review the experience and lessons learned through this process and provide an update on future work on other obsolescence management issues.

Talk as video stream: https://youtu.be/kGtexyeU2S8

Slides MODPL03 [59.483 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-MODPL03

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUCPA06

SwissFEL - Beam Synchronous Data Acquisition - The First Year

ion, FEL, data-acquisition, MMI

276

S.G. Ebner, H. Brands, B. Kalantari, R. Kapeller, F. Märki, L. Sala, C. Zellweger
PSI, Villigen PSI, Switzerland

The SwissFEL beam-synchronous data-acquisition system is based on several novel concepts and technologies. It is targeted on immediate data availability and online processing and is capable of assembling an overall data view of the whole machine, thanks to its distributed and scalable back-end. Load on data sources is reduced by immediately streaming data as soon as it becomes available. The streaming technology used provides load balancing and fail-over by design. Data channels from various sources can be efficiently aggregated and combined into new data streams for immediate online monitoring, data analysis and processing. The system is dynamically configurable, various acquisition frequencies can be enabled, and data can be kept for a defined time window. All data is available and accessible enabling advanced pattern detection and correlation during acquisition time. Accessing the data in a code-agnostic way is also possible through the same REST API that is used by the web-frontend. We will give an overview of the design and specialities of the system as well as talk about the findings and problems we faced during machine commissioning.

Slides TUCPA06 [5.107 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUCPA06

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPHA021

Experiences Using Linux Based VME Controller Boards

ion, Linux, EPICS, controls

420

D. Zimoch, D. Anicic
PSI, Villigen PSI, Switzerland

For many years, we have used a commercial real-time operating system to run EPICS on VME controller boards. However, with the availability of EPICS on Linux it became more and more charming to use Linux not only for PCs, but for VME controller boards as well. With a true multi-process environment, open source software and all standard Linux tools available, development and debugging promised to become much easier. Also the cost factor looked attractive, given that Linux is for free. However, we had to learn that there is no such thing as a free lunch. While developing EPICS support for the VME bus interface was quite straight forward, pitfalls waited at unexpected places. We present challenges and solutions encountered while making Linux based real-time VME controllers the main control system component in SwissFEL.

Poster TUPHA021 [1.040 MB]

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TUPHA032

Parallel Processing for the High Frame Rate Upgrade of the LHC Synchrotron Radiation Telescope

ion, controls, radiation, synchrotron

442

D. Alves, E. Bravin, G. Trad
CERN, Geneva, Switzerland

The Beam Synchrotron Radiation Telescope (BSRT) is routinely used for estimating the transverse beam size, pro'le and emittance in the LHC; quantities playing a crucial role in the optimisation of the luminosity levels required by the experiments. During the 2017 LHC run, the intensi'ed analog cameras used by this system to image the beam have been replaced by GigE digital cameras coupled to image intensi'ers. Preliminary tests revealed that the typically used sub-image rectangles of 128×128 pixels can be acquired at rates of up to 400 frames per second, more than 10 times faster than the previous acquisition rate. To address the increase in CPU workload for the image processing, new VME CPU cards (Intel 4 core/2.5GHz/8GB RAM) are envisaged to be installed (replacing the previous Intel Core 2 Duo/1.5GHz/1GB RAM). This paper focuses on the software changes proposed in order to take advantage of the multi-core capabilities of the new CPU for parallel computations. It will describe how beam profile calculations can be pipe-lined through a thread pool while ensuring that the CPU keeps up with the increased data rate. To conclude, an analysis of the system performance will be presented.

Poster TUPHA032 [1.673 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA032

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TUPHA040

Development of Real-Time Data Publish and Subscribe System Based on Fast RTPS for Image Data Transmission

ion, network, diagnostics, experiment

473

G.I. Kwon, J.S. Hong, T.G. Lee, W.R. Lee, J.S. Park, T.H. Tak
NFRI, Republic of Korea

Funding: This work was supported by the Korean Ministry of Science ICT & Future Planning under the KSTAR project.
In fusion experiment, real-time network is essential to control plasma real-time network used to transfer the diagnostic data from diagnostic device and command data from PCS(Plasma Control System). Among the data, transmitting image data from diagnostic system to other system in real-time is difficult than other type of data. Because, image has larger data size than other type of data. To transmit the images, it need to have high throughput and best-effort property. And To transmit the data in real-time manner, the network need to has low-latency. RTPS(Real Time Publish Subscribe) is reliable and has Quality of Service properties to enable best effort protocol. In this paper, eProsima Fast RTPS was used to implement RTPS based real-time network. Fast RTPS has low latency, high throughput and enable to best-effort and reliable publish and subscribe communication for real-time application via standard Ethernet network. This paper evaluates Fast RTPS about suitability to real-time image data transmission system. To evaluate performance of Fast RTPS base system, Publisher system publish image data and multi subscriber system subscribe image data.
* giilkwon@nfri.re.kr, Control team, National Fusion Research Institute, Daejeon, South Korea

Poster TUPHA040 [8.164 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA040

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TUPHA080

New Data Acquisition System Implemented Based on MTCA.4 Form Factor for KSTAR Diagnostic System

ion, diagnostics, controls, site

593

T.G. Lee, J.S. Hong, G.I. Kwon, W.R. Lee, T.H. Tak
NFRI, Daejon, Republic of Korea

In Korea Superconducting Tokamak Advanced Research (KSTAR), various diagnostics systems were operated from the first plasma in 2008. Many diagnostic devices have been installed for measuring the various plasma properties such as plasma current, magnetic current, electron density, electron temperature, impurity, and so on. The DAQ system for measuring the various plasma properties were developed with various form factor digitizer such as VME, CPCI, PXI, VXI. and PCIe. These complicated form factors installed on KSTAR have difficulties with hardware management, software management and performance upgrades. In order to control real-time systems using several diagnostic signals, the real-time control system is required to share the data without delay between the diagnostic measurement system and the real-time control system without branch one signal. Therefore, we developed the Multifunction Control Unit (KMCU) as the standard control system MTCA.4 form-factor and implemented the various diagnostic DAQ system using KMCU V2, that is KMCU-Z30. This paper will present the implementation of KSTAR diagnostic DAQ systems configured with KMCU based on MTCA.4 and their operating results.

Poster TUPHA080 [1.779 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA080

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TUPHA092

Two Years of FAIR General Machine Timing - Experiences and Improvements

ion, network, timing, controls

633

M. Kreider, R. Bär, D. Beck, A. Hahn, N. Kurz, C. Prados, S. Rauch, M. Reese, M. Zweig
GSI, Darmstadt, Germany
M. Kreider
Glyndŵr University, Wrexham, United Kingdom

The FAIR General Machine Timing system has been in operation at GSI since 2015 and significant progress has been made in the last two years. The CRYRING accelerator was the first machine on campus operated with the new timing system and serves as a proving ground for new control system technology to this day. A White Rabbit (WR) network was set up, connecting parts of the existing facility. The Data Master was put under control of the LSA physics core. It was enhanced with a powerful schedule language and extensive research for delay bound analysis with network calculus was undertaken. Several form factors of Timing Receivers were improved, their hard and software now being in their second release and subject to a continuous series of automated long- and short-term tests in varying network scenarios. The final goal is time-synchronization of 2000-3000 nodes using the WR Precision-Time-Protocol distribution of TAI time stamps and synchronized command and control of FAIR equipment. Promising test results for scalability and accuracy were obtained when moving from temporary small lab setups to CRYRING's control system with more than 30 nodes connected over 3 layers of WR Switches.

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA092

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TUPHA152

Towards a Time-Constrained Service-Oriented Architecture for Automation and Control in Large-Scale Dynamic Systems

ion, controls, software, PLC

760

G. Chen, B.R. An
CAEP, Sichuan, People's Republic of China

Funding: This work is supported by National Natural Science Foundation of China(61333003) and Science and Technology Development Foundation of China Academy of Engineering Physics (14-FZJJ-0422).
Rapidly changing demands for interoperability among heterogeneous systems leads to a paradigm shift from pre-defined control strategies to dynamic customization within many automation systems, e.g., large-scale scien-tific facilities. However, today's mass systems are of a very static nature. Fully changing the control process requires a high amount of expensive manual efforts and is quite error prone. Hence, flexibility will become a key factor in the future control systems. The adoption of web services and Service-Oriented Architecture (SOA) can provide the requested capability of flexibility. Since the adaptation of SOAs to automation systems has to face time-constrained requirements, particular attention should be paid to real-time web services for deterministic behaviour. This paper proposes a novel framework for the integration of a Time-Constrained SOA (TcSOA) into mass automation systems. Our design enables service encapsulation in filed level and evaluates how real time technologies can be synthesized with web services to enable deterministic performance.

Poster TUPHA152 [0.438 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-TUPHA152

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TUPHA164

Evaluation of Model Based Real Time Feedback Control System on Plasma Density

ion, controls, plasma, software

794

W.R. Lee, J.S. Hong, G.I. Kwon, T.G. Lee, T.H. Tak
NFRI, Daejon, Republic of Korea

"Design and implementation of a standard framework for KSTAR control system", FED, Volumes 89, 2015
"Designing a common real-time controller for VLT applications", Proc. of SPIE Vol. 5496

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THCPA06

A Real-Time Beam Monitoring System for Highly Dynamic Irradiations in Scanned Proton Therapy

ion, proton, radiation, monitoring

1224

G. Klimpki, C. Bula, M. Eichin, A.L. Lomax, D. Meer, S. Psoroulas, U. Rechsteiner, D.C. Weber
PSI, Villigen PSI, Switzerland
D.C. Weber
University of Zurich, University Hospital, Zurich, Switzerland

Funding: This work is supported by the Giuliana and Giorgio Stefanini Foundation.
Patient treatments in scanned proton therapy exhibit dead times, e.g. when adjusting beamline settings for a different energy or lateral position. On the one hand, such dead times prolong the overall treatment time, but on the other hand they grant possibilities to (retrospectively) validate that the correct amount of protons has been delivered to the correct position. Efforts in faster beam delivery aim to minimize such dead times, which calls for different means of monitoring irradiation parameters. To address this issue, we report on a real-time beam monitoring system that supervises the proton beam position and current during beam-on, hence while the patient is under irradiation. For this purpose, we sample 1-axis Hall probes placed in beam-scanning magnets and plane-parallel ionization chambers every 10 μs. FPGAs compare sampled signals against verification tables - time vs. position/current charts containing upper and lower tolerances for each signal - and issue interlocks whenever samples fall outside. Furthermore, we show that by implementing real-time beam monitoring in our facility, we are able to respect patient safety margins given by international norms and guidelines.

Slides THCPA06 [1.841 MB]

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THPHA044

REALTA and pyDART: A Set of Programs to Perform Real Time Acquisition and On-Line Analysis at the FERMI Free Electron Laser

ion, FEL, controls, GUI

1460

E. Allaria, E. Ferrari, E. Roussel, L. Vidotto
Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy

During the optimization phase of the FERMI Free Electron Laser (FEL) to deliver the best FEL pulses to users, many machine parameters have to be carefully tuned, like e.g. the seed laser intensity, the dispersion strength, etc. For that purpose, a new python-based acquisition tool, called REALTA (Real Time Acquisition program), has been developed to acquire various machine parameters, electron beam properties and FEL signals on a shot-by-shot basis thanks to the real time capabilities of the TANGO control system. The data are saved continuously during the acquisition in a HDF5 file. The pyDART (Python Data Analysis Real Time) program is the post-processing tool that enables a fast analysis of the data acquired with REALTA. It allows to study the correlations and dependences between the FEL and electron beam properties and the machine parameters. In this work, we present the REALTA and pyDART toolkit developed for the FERMI FEL.

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THPHA067

EtherCAT based DAQ system at ESS

ion, EPICS, Ethernet, Linux

1536

J. Etxeberria, J.H. Lee
ESS, Lund, Sweden

The European Spallation Source (ESS) is a multi-disciplinary research facility based on what will be the world's most powerful-pulsed neutron source. The Integrated Control System Division (ICS) is responsible of defining and providing control systems for the ESS facility. This control system will be based on the EPICS and it must be high performance, cost-efficient, safe, reliable and easily maintainable. At the same time there is a strong need for standardization. To fulfill these requirements ICS has chosen different hardware platforms, like MicroTCA, PLC, EtherCAT, etc. EtherCAT, a Ethernet-based real-time fieldbus will be analyzed, and different questions will be answered: -Why has EtherCAT been chosen? -In which cases is it deployed? -How is it integrated into EPICS? -What is the installation process? Along with data acquisition purposes, the ESS Motion Control and Automation Group decided to use EtherCAT hardware to develop an Open Source EtherCAT Master Motion Controller, for the control of all the actuators of the accelerator within the ESS project. Hence, an overview of the open Source Motion Controller and its integration in EPICS will be also presented.

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THPHA134

Ground Vibration Monitoring at CERN as Part of the International Seismic Network

ion, network, ground-motion, database

1695

C. Charrondière, M. Cabon, K. Develle, M. Guinchard
CERN, Geneva, Switzerland

The civil engineering activities in the framework of the High Luminosity LHC project, the Geneva GEothermie 2020 and the continuous monitoring of the LHC civil infrastructures triggered the need for the installation of a seismic network at CERN. A 24 bits data acquisition system has been deployed in 3 places at CERN: ATLAS, CMS and the Prévessin site. The system is sending all the raw data to the Swiss Seismological Service and performs FFT on the fly to be stored in the LHC database. The system has shown a good sensitivity of 10^-16 (m/s)2/Hz at 1 Hz.

Poster THPHA134 [2.775 MB]

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THPHA153

Real-Time Java to Support the Device Property Model

ion, software, controls, operation

1757

C. Cardin, M.A. Galilée, J.C. Garnier, K.H. Krol, M. Osinski, A. Stanisz, M. Zerlauth
CERN, Geneva, Switzerland

Today's front-end controllers, which are widely used in CERNs controls environment, feature CPUs with high clock frequencies and extensive memory storage. Their specifications are comparable to low-end servers, or even smartphones. The Java Virtual Machine (JVM) has been running on similar configurations for years now and it seems natural to evaluate the behaviour of JVMs on this environment to characterize if Firm or Soft real-time constraints can be addressed efficiently. Using Java at this low-level offers the opportunity to refactor CERNs current implementation of the device/property model and to move away from a monolithic architecture to a promising and scalable separation of the area of concerns, where the front-end may publish raw data that other layers would decode and re-publish. This paper presents first the evaluation of Machine Protection control system requirements in terms of real-time constraints and a comparison of the performance of different JVMs regarding these constraints. In a second part, it will detail the efforts towards a first prototype of a minimal RT Java supervision layer to provide access to the hardware layer.

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THPHA162

Monitoring of CERN's Data Interchange Protocol (DIP) System

ion, monitoring, controls, interface

1797

B. Copy, E. Mandilara, I. Prieto Barreiro, F. Varela
CERN, Geneva, Switzerland

CERN's Data Interchange Protocol (DIP)* is a publish-subscribe middleware infrastructure developed at CERN to allow lightweight communications between distinct industrial control systems (such as detector control systems or gas control systems). DIP is a rudimentary data exchange protocol with a very flat and short learning curve and a stable specification. It also lacks support for access control, smoothing or data archiving. This paper presents a mechanism which has been implemented to keep track of every single publisher or subscriber node active in the DIP infrastructure, along with the DIP name servers supporting it. Since DIP supports more than 55,000 publications, regrouping hundreds of industrial control processes, keeping track of the system activity requires advanced visualization mechanisms (e.g. connectivity maps, live historical charts) and a scalable web-based interface** to render this information is essential.
* W. Salter et al., "DIP Description" LDIWG (2004) https://edms.cern.ch/file/457113/2/DIPDescription.doc
** B. Copy et al., "MOPPC145" - ICALEPCS 2013, San Francisco, USA

Poster THPHA162 [3.066 MB]

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THPHA180

Visualisation of Real-Time Front-End Software Architecture (FESA) Developments at CERN

ion, software, framework, controls

1853

A. Topaloudis
CERN, Geneva, Switzerland
C. Rachex
Polytech Grenoble, Saint Martin d'Hères, France

The Front-End Software Architecture (FESA) framework is the basis for most real-time software development for accelerator control at CERN. FESA designs are defined in an XML document which is validated against a schema to enforce framework constraints, and are used to automatically generate C++ boilerplate code in which the developer can then implement specific code. Design files can rapidly grow in complexity making the overview of the resulting system almost impossible to understand. One way to overcome this is to benefit from a graph-based representation of the design, with XML fragments summarized into logical blocks and association between the blocks depicted by arrows. As the intricacy of the graph is analogous to a potential complex design, it is also essential to provide an interactive Graphical User Interface (GUI) for parameterising and editing the graph generation in order to fine-tune a simpler and cleaner illustration of a FESA design. This paper describes such a GUI (FESA Graph Editor) and outlines how it benefits the design and documentation process of the FESA-design-document.

Poster THPHA180 [0.987 MB]

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THSH103

Using Color Blindness Simulator During User Interface Development for Accelerator Control Room Applications

ion, simulation, interface, GUI

1958

S. Aytac
DESY, Hamburg, Germany

For normally sighted developers it is hard to imagine how the user interface is going to look to a color blind person. Our purpose is to draw attention to people with color blindness and to consider their color vision. For that, this paper presents the integration of color blindness simulators into the development process of user interfaces. At the end we discuss the main contributing factors.

Poster THSH103 [1.168 MB]

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