Control System Upgrades
Paper Title Page
MOPHA019 Upgrade of the Control System for the LHC High Level RF 236
 
  • Y. Brischetto, L. Arnaudon, V. Costa, D.C. Glenat, D. Landré
    CERN, Meyrin, Switzerland
 
  The acceleration of particles in CERN’s Large Hadron Collider (LHC) is carried out by sixteen superconducting radiofrequency (RF) cavities. Their remote control is taken care of by a complex system which involves heterogeneous equipment and interfaces with a number of different subsystems, such as high voltage power converters, cryogenics, vacuum and access control interlocks. In view of the renovations of the CERN control system planned for the Long Shutdown 2 (LS2), the control software for the RF system recently underwent a complete bottom-up refactoring, in order to dispose of obsolete software and ensure the operation of the system in the long term. The upgraded software has been deployed one year before LS2, and allowed successful operation of the machine. This paper describes the strategy followed in order to commission the system and to guarantee LHC nominal operation after LS2.  
poster icon Poster MOPHA019 [1.661 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA019  
About • paper received ※ 26 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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MOPHA029 FORS-Up: An Upgrade of the FORS2 Instrument @ ESO VLT 253
 
  • R. Cirami, V. Baldini, I. Coretti, P. Di Marcantonio
    INAF-OAT, Trieste, Italy
  • H. Boffin, F. Derie, A. Manescau, R. Siebenmorgen
    ESO, Garching bei Muenchen, Germany
 
  The FORS Upgrade project (FORS-Up), financed by the European Southern Observatory, aims at upgrading the FORS2 instrument currently installed on the UT1 telescope of the ESO Very Large Telescope in Chile. FORS2 is an optical instrument that can be operated in different modes (imaging, polarimetry, long-slit and multi-object spectroscopy). Due to its versatility, the ESO Scientific Technical Committee has identified FORS2 as a highly demanded workhorse among the VLT instruments that shall remain operative for the next 15 years. The main goals of the FORS-Up project are the replacement of the FORS2 scientific detector and the upgrade of the instrument control software and electronics. The project is conceived as "fast track" so that FORS2 is upgraded to the VLT for 2022. This paper focuses on the outcomes of the FORS-Up Phase A, ended in February 2019, and carried out as a collaboration between ESO and INAF – Astronomical Observatory of Trieste, this latter in charge of the feasibility study of the upgrade of the control software and electronics with the latest VLT standard technologies (among them the use of the PLCs and of the latest features of the VLT Control Software).  
poster icon Poster MOPHA029 [4.293 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA029  
About • paper received ※ 27 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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MOPHA034 Software Architecture for Next Generation Beam Position Monitors at Fermilab 275
 
  • J.S. Diamond
    Fermilab, Batavia, Illinois, USA
 
  Funding: This work was supported by the DOE contract No. DEAC02-07CH11359 to the Fermi Research Alliance LLC.
The Fermilab Accelerator Division / Instrumentation Department develops Beam Position Monitor (BPM) systems in-house to support its sprawling accelerator complex. Two new BPM systems have been deployed and another upgraded over the last two years. These systems are based on a combination of VME and Gigabit Ethernet connected hardware and a common Linux-based embedded software platform with modular components. The architecture of this software platform and the considerations for adapting to future machines or upgrade projects will be described.
 
poster icon Poster MOPHA034 [1.424 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA034  
About • paper received ※ 30 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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MOPHA042 Evaluating VISTA and EPICS With Regard to Future Control Systems Development at ISIS 291
 
  • I.D. Finch
    STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
 
  The ISIS Muon and Neutron Source has been in operation for more than 30 years and has already seen one complete replacement of its controls system software. Currently ISIS uses the Vista controls system suite of software. I present our work in implementing a new EPICS control system for our Front End Test Stand (FETS) currently running VISTA. This new EPICS system is being used to evaluate a possible migration from Vista to EPICS at a larger scale in ISIS. I present my experience in the initial implementation of EPICS, considerations on using a phased transition during which the two systems are run in parallel, and our future plans with regard to developing control systems in an established decades-old accelerator with heterogeneous systems.  
poster icon Poster MOPHA042 [0.396 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA042  
About • paper received ※ 30 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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MOPHA049 Test-bench Design for New Beam Instrumentation Electronics at CERN 323
 
  • M. Gonzalez-Berges, J.O. Robinson, M. Saccani, V. Schramm, M.A. Stachon
    CERN, Meyrin, Switzerland
 
  The Beam Instrumentation group has designed a new general-purpose VME acquisition board that will serve as the basis for the design of new instruments and will be used in the renovation of existing systems in the future. Around 1200 boards have been produced. They underwent validation, environmental stress screening and run-in tests to ensure their performance and long term reliability. This allowed to identify potential issues at an early stage and mitigate them, minimizing future interventions and downtime. A dedicated test-bench was designed to drive the tests and continuously monitor the board functionality. One board has more than 45 functions including memories, high speed serial links and a variety of diagnostics. The test-bench was fully integrated with the CERN asset management system to allow lifecycle management from the initial production phase. The data captured during these tests was stored and analyzed regularly to find sources of failures. This was the first time that such a complete test-bench has been used. This paper presents all the details of the test-bench design and implementation.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA049  
About • paper received ※ 30 September 2019       paper accepted ※ 19 October 2019       issue date ※ 30 August 2020  
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MOPHA073 Recent Updates of the RIKEN RI Beam Factory Control System 384
 
  • M. Komiyama, M. Fujimaki, N. Fukunishi, A. Uchiyama
    RIKEN Nishina Center, Wako, Japan
 
  We report on two latest updates of the RIKEN Radioactive Isotope Beam Factory (RIBF) control system. First, the successor of the existing beam interlock system (BIS) operated since 2006 was developed in 2019. As a first step, it covers a small part of the RIBF facility. The new interlock system is based on a programmable logic controller (PLC) and uses a Linux-based PLC-CPU on that the Experimental Physics and Industrial Control System (EPICS) programs can be executed in addition to a sequencer. By using two kinds of CPUs properly according to the speed required for each signal handled in the system, we succeeded in reducing the response time less than one third of the BIS in the performance test using prototype. Second, we plan to expand coverage of the alarm system. We have applied the Best Ever Alarm System Toolkit (BEAST) for several years in addition to the Alarm Handler mainly to vacuum components. We have tried to include the magnet power supplies but found difficulties in treating old power supplies having large fluctuations of read-out values of their excitation currents in an appropriate manner. Our trials to overcome this problem will be presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA073  
About • paper received ※ 27 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA111 Easing the Control System Application Development for CMS Detector Control System with Automatic Production Environment Reproduction 476
 
  • I. Papakrivopoulos, G. Bakas, G. Tsipolitis
    National Technical University of Athens, Athens, Greece
  • U. Behrens
    DESY, Hamburg, Germany
  • J. Branson, S. Cittolin, M. Pieri
    UCSD, La Jolla, California, USA
  • P. Brummer, D. Da Silva Gomes, C. Deldicque, M. Dobson, N. Doualot, J.R. Fulcher, D. Gigi, M.S. Gladki, F. Glege, J. Hegeman, A. Mecionis, F. Meijers, E. Meschi, K. Mor, S. Morovic, L. Orsini, D. Rabady, A. Racz, K.V. Raychinov, A. Rodriguez Garcia, H. Sakulin, C. Schwick, D. Simelevicius, P. Soursos, M. Stankevicius, U. Suthakar, C. Vazquez Velez, A.B. Zahid, P. Zejdl
    CERN, Meyrin, Switzerland
  • G.L. Darlea, G. Gomez-Ceballos, C. Paus
    MIT, Cambridge, Massachusetts, USA
  • W. Li, A. Petrucci, A. Stahl
    Rice University, Houston, Texas, USA
  • R.K. Mommsen, S. Morovic, V. O’Dell, P. Zejdl
    Fermilab, Batavia, Illinois, USA
 
  The Detector Control System (DCS) is one of the main pieces involved in the operation of the Compact Muon Solenoid (CMS) experiment at the LHC. The system is built using WinCC Open Architecture (WinCC OA) and the Joint Controls Project (JCOP) framework which was developed on top of WinCC at CERN. Following the JCOP paradigm, CMS has developed its own framework which is structured as a collection of more than 200 individual installable components each providing a different feature. Everyone of the systems that the CMS DCS consists of is created by installing a different set of these components. By automating this process, we are able to quickly and efficiently create new systems in production or recreate problematic ones, but also, to create development environments that are identical to the production ones. This latter one results in smoother development and integration processes, as the new/reworked components are developed and tested in production-like environments. Moreover, it allows the central DCS support team to easily reproduce systems that the users/developers report as being problematic, reducing the response time for bug fixing and improving the support quality.  
poster icon Poster MOPHA111 [0.975 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA111  
About • paper received ※ 30 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA131 Waste Heat Recovery for the LHC Coooling Towers: Control System Validation Using Digital Twins 520
 
  • B. Schofield, E. Blanco Viñuela, W. Booth
    CERN, Geneva, Switzerland
  • M.O. Peljo
    Aalto University, School of Science and Technology, Aalto, Finland
 
  In order to improve its energy utilization, CERN will deploy a Waste Heat Recovery system at one of the LHC’s surface sites which will provide heating power to a local municipality. To study the effects that the heat recovery plant will have on the cooling system, a ’digital twin’ of the cooling plant was created in the simulation tool EcosimPro. The primary question of interest was whether the existing control system of the cooling plant would be capable of handling transients arising from a sudden shutdown of the heat recovery plan. The simulation was connected via OPC UA to a PLC implementing the cooling plant control system. This ’virtual commissioning’ setup was used to study a number of scenarios representing different cooling loads, ambient temperature conditions, and heat recovery plant operating points. Upon completion of the investigation it was found that the current cooling plant control system will be sufficient to deal with the transients arising from a sudden stop of heat recovery plant operation. In addition, it was shown that an improvement in the controls could also enhance the energy savings of the cooling towers.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA131  
About • paper received ※ 27 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA145 Evolution of the CERN LINAC 4 Intensity Interlock System Using a Generic, Real-Time Comparator in C++ 570
 
  • A. Topaloudis, J.C. Allica Santamaria
    CERN, Geneva, Switzerland
 
  During the commissioning phase of LINAC 4, three watchdog interlock systems were used to protect the accelerator and its equipment. These systems cut the beam if losses, calculated by combining the intensity measurements at various locations, exceed some predefined thresholds. While the existing systems were designed to be simple and robust to ensure safety, the future connection of the linac to the Proton Synchrotron Booster (PSB) requires new instances of these systems with additional requirements. Such requirements include the remote communication of the watchdogs with the intensity measurement systems to decouple any physical dependency between the two systems, and the arithmetical/logical combination of the measured data based on the watchdog location. As the Controls Interlocks Beam User (CIBU) hardware interface to the Beam Interlock Controller (BIC) is simple, the software part of the system can be re-designed to be application agnostic giving a single decision after performing a configurable set of comparisons. This paper describes the upgrade of the software of the existing watchdog interlock system to a generic comparator, enabling its usage for other applications.  
poster icon Poster MOPHA145 [1.008 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA145  
About • paper received ※ 27 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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WECPL01 Status of the Control System for Fully Integrated SACLA/SPring-8 Accelerator Complex and New 3 GeV Light Source Being Constructed at Tohoku, Japan 904
 
  • T. Sugimoto, N. Hosoda, K. Okada, M. Yamaga
    JASRI, Hyogo, Japan
  • T. Fukui
    RIKEN SPring-8 Center, Innovative Light Sources Division, Hyogo, Japan
  • M. Ishii
    JASRI/SPring-8, Hyogo-ken, Japan
 
  In the SPring-8 upgrade project, we plan to use the linear accelerator of SACLA as a full-energy injector to the storage ring. For the purpose of simultaneous operation of XFEL lasing and on-demand injection, we developed a new control framework that inherits the concepts of MADOCA. We plan to use the same control framework for a 3 GeV light source under construction at Tohoku, Japan. Messaging of the new control system is based on the MQTT protocol, which enables slow control and data acquisition with sub-second response time. The data acquisition framework, named MDAQ, covers both periodic polling and event-synchronizing data. To ensure scalability, we applied a key-value storage scheme, Apache Cassandra, to the logging database of the MDAQ. We also developed a new parameter database scheme, that handles operational parameter sets for XFEL lasing and on-demand top-up injection. These parameter sets are combined into 60 Hz operation patterns. For the top-up injection, we can select the operational pattern every second on an on-demand basis. In this paper, we report an overview of the new control system and the preliminary results of the integrated operation of SACLA and SPring-8.  
slides icon Slides WECPL01 [10.969 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WECPL01  
About • paper received ※ 03 October 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WECPL02 Roadmap to 100 Hz DAQ at SwissFEL: Experiences and Lessons Learned 909
 
  • T. Celcer, A. Babic, S.G. Ebner, F. Märki, L. Sala
    PSI, Villigen PSI, Switzerland
 
  Providing reliable and performant Data Acquisition System (DAQ) at Free Electron Lasers (FELs) is a challenging and complex task due to the inherent characteristics of a pulsed machine and consequent need of beam synchronous shot-to-shot DAQ, which enables correlation of collected data associated with each FEL pulse. We will focus on experiences gathered during the process of moving towards 100 Hz operation at SwissFEL from the perspective of beam synchronous DAQ. Given the scarce resources and challenging deadlines, a lot of efforts went into managing conflicting stakeholder expectations and priorities and into allocation of time for operation support and maintenance tasks on one side and time for design and development tasks on the other side. The technical challenges we encountered have shown a great importance of having proper requirements in the early phase, a well thought system design concept, which considers all subsystems in the DAQ chain, and a well-defined test framework for validation of recorded beam synchronous data.  
slides icon Slides WECPL02 [4.248 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WECPL02  
About • paper received ※ 27 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WECPL03 Implementation of the Motion Control System for LCLS-II Undulators 915
 
  • M.A. Montironi, C.J. Andrews, H. Bassan, K.R. Lauer, Yu.I. Levashov, H.-D. Nuhn, Z.R. Wolf
    SLAC, Menlo Park, California, USA
  • Ž. Oven
    Cosylab, Ljubljana, Slovenia
 
  As part of the LCLS upgrade called LCLS-II, two new undulator lines were introduced: a soft X-Ray line (SXR) and a hard H-Ray line (HXR). Serving distinct purposes, the two undulator lines employ different undulator designs. The SXR line is composed of 21 vertical gap, horizontally polarized undulators while the HXR line is composed of 32 undulator segments designed to operate on the horizontal axis and to produce a vertically polarized beam. The HXR undulators will replace the LCLS ones and thus the control system was designed with the main goal of maximizing the re-utilization of existing hardware and software. For this purpose, the motion control system based on RTEMS running on VME with Animatics SmartMotors was developed as an upgrade of the LCLS design and the cam-based undulator girder positioning system has been reused. The all new SXR undulators employ a new control system design based on Aerotech motion controllers and EPICS soft IOCs (input-output controllers). This paper describes how the most challenging motion control requirements were implemented focusing on motion synchronization, K-value to gap transformation, cams kinematics and calibration, and user interaction.  
slides icon Slides WECPL03 [0.625 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WECPL03  
About • paper received ※ 29 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WECPL04
Beamline Control System Upgrade Strategy for the APS-U  
 
  • J.P. Sullivan
    ANL, Lemont, Illinois, USA
 
  This talk will be on the beamline controls design and support philosophy used by the APS X-ray Science (XSD) Beamline Controls (BC) Group and how that impacts control system upgrade decisions for the APS-U Project. The XSD/BC philosophy is based on providing high performance, long-lived, and supportable solutions given limited resources. Maximizing the use of EPICS and COTS hardware are the enabling technologies that makes that philosophy sustainable. Meeting the requirements of APS-U beamlines while still abiding by a proven successful approach to control system design will be described.  
slides icon Slides WECPL04 [9.625 MB]  
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WECPL05 Migrating to Tiny Core Linux in a Control System 920
 
  • R.A. Washington
    STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
 
  The ISIS Accelerator Controls (IAC) group currently uses a version of Microsoft Windows Embedded as its chosen Operating System (OS) for control of front-line hardware. Upgrading to the current version of the Windows Embedded OS is not possible without also upgrading hardware, or changing the way software is delivered to the hardware platform. The memory requirements are simply too large to be considered a viable option. A new alternative was sought and that process led to Tiny Core Linux being selected due to its frugal memory requirements and ability to run from a RAM-disk. This paper describes the process of migrating from Windows Embedded Standard 2009 to Tiny Core Linux as the OS platform for IAC embedded hardware.  
slides icon Slides WECPL05 [1.455 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WECPL05  
About • paper received ※ 27 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WEDPL01 In-Place Technology Replacement of a 24x7 Operational Facility: Key Lessons Learned and Success Strategies From the NIF Control System Modernization 950
 
  • M. Fedorov, G.K. Brunton, C.M. Estes, B.T. Fishler, M.S. Flegel, A.P. Ludwigsen, M. Paul, S.L. Townsend
    LLNL, Livermore, California, USA
 
  Funding: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344
The National Ignition Facility (NIF) is the world’s largest laser system for Inertial Confinement Fusion (ICF) and High Energy Density (HED) experiments. Design of NIF control system started in the 1990s, incorporating established hardware and software technologies of that era. The architecture of the control system has stood the test of time, successfully scaling up to full 192 laser beam configuration in 2009, and then transitioning to 24x7 operations and sustaining 400 shots annually since 2016. The control system has grown with NIF to add new major capabilities, such as cryogenic layering, a petawatt-class laser, 3D neutron imaging and others. In parallel, with scaling up and efficiency optimizations, the software had to adapt to changes dictated by the fast-paced computer industry. Some of our originally chosen technologies have become obsolete and replaced by new programming languages, frameworks and paradigms. In this talk, we will discuss how the NIF control system has leveraged the strengths of its distributed, cross-platform architecture to successfully modernize "in-place" computing platforms and programming languages without impacting the demanding experiment schedule.
 
slides icon Slides WEDPL01 [3.462 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEDPL01  
About • paper received ※ 01 October 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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WEDPL02 AliECS: A New Experiment Control System for the Alice Experiment 956
 
  • T. Mrnjavac, K. Alexopoulos, V. Chibante Barroso, G.C. Raduta
    CERN, Geneva, Switzerland
 
  The ALICE Experiment at CERN LHC (Large Hadron Collider) is undertaking during Long Shutdown 2 in 2019-2020 a major upgrade, which includes a new computing system called O² (Online-Offline). To ensure the efficient operation of the upgraded experiment along with its newly designed computing system, a reliable, high performance and automated experiment control system is being developed with the goal of managing all O² synchronous processing software, and of handling the data taking activity by interacting with the detectors, the trigger system and the LHC. The ALICE Experiment Control System (AliECS) is a distributed system based on state of the art cluster management and microservices which have recently emerged in the distributed computing ecosystem. Such technologies will allow the ALICE collaboration to benefit from a vibrant and innovating open source community. This communication illustrates the AliECS architecture. It provides an in-depth overview of the system’s components, features and design elements, as well as its performance. It also reports on the experience with AliECS as part of ALICE Run 3 detector commissioning setups.  
slides icon Slides WEDPL02 [2.858 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEDPL02  
About • paper received ※ 30 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WEDPL03
International Collaboration for the Development of TwinCAT Motion Control Software for Neutron Instruments  
 
  • S.M. Cooper, S.M. Cox, D.E. Oram
    STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
  • P.N. Barron, T. Bögershausen, F. Rojas
    ESS, Lund, Sweden
  • S. Janaschke, F. Suxdorf
    FZJ, Jülich, Germany
 
  At the ISIS Pulsed Neutron and Muon Source*, we are in the process of upgrading our motion control hardware, used on instrument beamlines, to Beckhoff brand PLCs. PLCs offer greater flexibility than our current hardware and will allow us to keep up with the constantly evolving motion requirements of our facility driven by our scientists and users. At the time of writing, we have delivered two systems using this new hardware with our intent being that all new systems installed from Q4 and onward will utilize Beckhoff hardware. For the upgrade, we are utilizing the TwinCAT** software environment to develop the software for this hardware. This has provided an opportunity to start from a blank slate defining our requirements capturing all aspects of the system lifecycle from its end-user science requirements, through to operational support tools. A TwinCAT working group has been formed with two other neutron facilities, ESS*** and JCNS****. This group formed to align our requirements and share expertise with the intent of creating a common software library across the facilities and a lasting collaboration.
*https://isis.stfc.ac.uk/
**https://www.beckhoff.com/twincat/
***https://europeanspallationsource.se/
****https://www.fz-juelich.de/jcns/EN/Home/homenode.html
 
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WEDPL04 Consolidation and Redesign of CERN Industrial Controls Frameworks 963
 
  • P. Golonka, F. Varela
    CERN, Meyrin, Switzerland
 
  The Industrial Controls Frameworks, JCOP and UNICOS, have been employed to develop hundreds of critical controls applications in multiple domains like the detector control system, accelerator complex (cryogenics, powering, interlocks) or technical infrastructure, leading to an unprecedented level of homogeneity. These frameworks, used by a thousand of developers worldwide, will now undergo a major consolidation and re-engineering effort to prepare them for the new challenges of the next 20 years in the HL-LHC era, and streamline their maintenance. The paper presents the challenges that will be faced during this project due to the breadth of technological stack and large code-base contributed over two decades by numerous authors. Delivery of innovation induced by evolution of technologies and refactoring of the ageing code must be done in a way that ensures backward-compatibility for existing systems. The vision and the current state of the frameworks is discussed, alongside the main deliveries planned in the medium term. Lessons learnt, optimizations of processes to make best use of available resources and efforts towards open-source licensing of the frameworks are also presented.  
slides icon Slides WEDPL04 [2.285 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEDPL04  
About • paper received ※ 27 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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WEPHA041 The CMS ECAL Control and Safety Systems Upgrades During the CERN LHC Long Shutdown 2 1175
 
  • D.R.S. Di Calafiori, G. Dissertori, R.J. Jiménez Estupinan, W. Lustermann, S. Zelepoukine
    ETH, Zurich, Switzerland
  • A. Tsirou
    CERN, Meyrin, Switzerland
  • P.G. Verdini
    INFN-Pisa, Pisa, Italy
  • P.G. Verdini
    UNIPI, Pisa, Italy
  • S. Zelepoukine
    UW-Madison/PD, Madison, Wisconsin, USA
 
  The Electromagnetic Calorimeter (ECAL) is one of the sub-detectors of the Compact Muon Solenoid (CMS), a general-purpose particle detector at the CERN Large Hadron Collider (LHC). The CMS ECAL Detector Control System (DCS) and the CMS ECAL Safety System (ESS) have supported the detector operations and ensured the detector’s integrity since the CMS commissioning phase, more than 10 years ago. Over this long period, several changes to both systems were necessary to keep them in-line with current hardware technologies and the evolution of software platforms. The acquired experience of long-term running of both systems led to the need of major modifications to the original design and implementation methods. Such interventions to either systems, which require mid- to long-term validation, result in a considerable amount of downtime and therefore can only be performed during long LHC shutdown periods. This paper discusses the software and hardware upgrades to be carried out during the LHC Long Shutdown 2 (LS2), with emphasis on the evaluation of design choices concerning custom and standard industrial hardware.  
poster icon Poster WEPHA041 [5.188 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA041  
About • paper received ※ 30 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WEPHA042 Commissioning of the 352 MHz Transverse Feedback System at the Advance Photon Source 1180
 
  • N.P. DiMonte, C. Yao
    ANL, Lemont, Illinois, USA
 
  Funding: Work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
With the success and reliability of the transverse feedback system installed at the Advance Photon Source (APS), an upgraded version to this system was commissioned in 2019. The previous system operated at a third of the storage-ring bunch capacity, or 432 of the available 1296 bunches. This upgrade samples all 1296 bunches which allowed corrections to be made on any selected bunch in a single storage-ring turn. To facilitate this upgrade the development of a new analog I/O board capable of 352 MHz operation was necessary. This paper discusses some of the challenges associated in processing one bunch out of 1296 bunches and how flexible the system can be in processing all 1296 bunches. We will also report on the performance of this system.
 
poster icon Poster WEPHA042 [10.931 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA042  
About • paper received ※ 24 September 2019       paper accepted ※ 19 October 2019       issue date ※ 30 August 2020  
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WEPHA044 Upgrade of the Bunch Length and Bunch Charge Control Systems for the New SLAC Free Electron Laser 1185
 
  • M.P. Donadio, A.S. Fisher, L. Sapozhnikov
    SLAC, Menlo Park, California, USA
 
  In 2019 SLAC is building a new linear accelerator based on superconducting niobium cavities. The first one, now called the copper linac, could generate 120 electron bunches per second. The new one, called superconducting linac, will generate 1 million per second, bringing some challenges to many devices along with the accelerator. Most of them receive sensors and actuators in a VME-based Platform with its control running in software, with RTEMS as OS. This is feasible for 120 Hz, but not for 1 MHz. The new control hardware is ATCA-based Platform, that has carrier boards with FPGA connected to servers running Embedded real-time Linux OS, forming the High-Performance System (HPS). Instead of having all the new architecture installed at the accelerator and tested on the go, SLAC used the strategy of testing the systems in the copper linac, to have them ready to use in the superconducting linac in what was called the Mission Readiness Program. The Bunch Length System and the Bunch Charge System are examples of devices of this program. Both systems were tested in the copper linac at 120 Hz, with excellent results. The next step is to test them at the superconducting linac, at 1 MHz.  
poster icon Poster WEPHA044 [1.308 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA044  
About • paper received ※ 28 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WEPHA050 Status of the Process Control Systems Upgrade for the Cryogenic Installations of the LHC Based ATLAS and CMS Detectors 1214
 
  • C.F. Fluder, M. Pezzetti, A. Tovar González
    CERN, Geneva, Switzerland
  • K.M. Mastyna, P. Peksa, T. Wolak
    AGH, Cracow, Poland
 
  The ATLAS and CMS cryogenic control systems have been operational for more than a decade. Over this period, the number of PLCs faults increased due to equipment ageing, leading to systems failures. Maintenance of the systems started to be problematic due to the unavailability of some PLC hardware components, which had become obsolete. This led to a review of the hardware architecture and its upgrade to the latest technology, ensuring a longer equipment life cycle and facilitating the implementation of modifications to the process logic. The change of the hardware provided an opportunity to upgrade the process control applications using the most recent CERN frameworks and commercial engineering software, improving the in-house software production methods and tools. Integration of all software production tasks and technologies using the Continuous Integration practice allows us to prepare and implement more robust software while reducing the required time and effort. The publication presents the current status of the project, the strategy for hardware migration, enhanced software production methodology as well as the experience already gained from the first implementations.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA050  
About • paper received ※ 30 September 2019       paper accepted ※ 20 October 2019       issue date ※ 30 August 2020  
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WEPHA065 Upgraded Beam Instrumentation DAQ for GSI and FAIR: Overview and First Experiences 1248
 
  • T. Hoffmann, H. Bräuning
    GSI, Darmstadt, Germany
 
  As construction of the FAIR accelerator complex progresses, the existing heavy ion synchroton SIS18, the storage ring ESR and the high energy beam transfer lines HEBT have been upgraded to the future control system. Within this upgrade the beam instrumentation (BI) data acquisition systems (DAQ) have been heavily modernized too. These are now integrated into the control system with its White Rabbit based timing system, data supply (i.e. ion species, energy, etc) and services like archiving. Dedicated clients running in the main control room allow visualization and correlation of the data and status of the BI devices. The DAQ hardware has been upgraded using new state-of-the-art components. With a trend to slowly phase out VME based systems, solutions based on standard Industrial PC for few channels as well as on the new µTCA standard for many channels have been successfully implemented. This contribution will give an overview over the upgraded BI-DAQ systems like current transformers and counter applications for ionization chambers, scintillators, and more. It will also present first experiences during beam operation with the new control system, which started summer last year.  
poster icon Poster WEPHA065 [2.710 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA065  
About • paper received ※ 30 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WEPHA067 Control System Developments and Machine Model Benchmark for the GSI Fragment Separator FRS 1253
 
  • J.P. Hucka, J. Fitzek, D. Ondreka, S. Pietri, B.R. Schlei, H. Weick
    GSI, Darmstadt, Germany
  • J. Enders
    TU Darmstadt, Darmstadt, Germany
 
  Funding: Supported by BMBF (05P15RDFN1 and 05P19RDFN1)
At the GSI facility, the LSA* framework from CERN is used to implement a new control system for accelerators and beam transfers. This was already completed and tested for the SIS18 accelerator. The implementation of experimental rings such as CRYRING and ESR is currently under development. In addition, the fragment separator FRS** and - at a later stage - also the superconducting fragment separator Super-FRS at FAIR will be controlled within this framework. The challenge posed by the implementation of the control system for the FRS arises from the interaction of the beam with matter in the beamline and the beam’s associated energy loss. This energy loss is determined using input from ATIMA*** and has been included into the code of the LSA framework. The developed control system solutions were tested in dry-runs and proven to control power supplies and actuators with the help of an out of framework solution. Additionally the current production version of the software and setting generator was simulated and benchmarked by comparison to older measurements.
*M. Lamont et al., LHC Project Note 368
**H. Geissel et al., NIM B 70, 286 (1992)
***H. Weick et al., NIM B 164/165 (2000) 168
 
poster icon Poster WEPHA067 [0.655 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA067  
About • paper received ※ 10 September 2019       paper accepted ※ 20 October 2019       issue date ※ 30 August 2020  
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WEPHA068 A Control System Using EtherCAT Technology for The Next-Generation Accelerator 1258
 
  • M. Ishii, M.T. Takeuchi
    JASRI/SPring-8, Hyogo-ken, Japan
  • T. Fukui
    RIKEN SPring-8 Center, Innovative Light Sources Division, Hyogo, Japan
  • C. Kondo
    JASRI, Hyogo, Japan
 
  The construction of a new 3 GeV Light Source is in progress. The 3 GeV Light Source will be designed a compact and stable Linac based on the C-band accelerator developed by SACLA. Furthermore, we have an upgrade project of SPring-8 that we call SPring-8-II. We adopted EtherCAT technology as a network fieldbus for the next-generation control system. Currently, as the control systems using EtherCAT, a low-level RF system and a new standard in-vacuum undulator system are running at the SPring-8 storage ring. Additionally, it is necessary to upgrade a high-power RF (HPRF) system at SACLA and a magnet power supply system. The current HPRF system consists of a VME and four PLCs. These PLCs are connected by an optical FA-Link that had been discontinued. Therefore, we will construct a new HPRF system that is replaced a VME with MTCA.4 and is used EtherCAT as a fieldbus. A fieldbus of a magnet power supply system will be replaced an old optical link with EtherCAT. The new systems will be verified into a prototype accelerator for the 3 GeV Light Source in SPring-8 site. The control systems using EtherCAT will be installed into the 3 GeV Light Source and SPring-8-II.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA068  
About • paper received ※ 30 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WEPHA099 XLEAP-II Motion Control 1325
 
  • M.A. Montironi, H. Bassan, M.A. Carrasco, E.M. Kraft, A. Marinelli
    SLAC, Menlo Park, California, USA
 
  The XLEAP project was conceived with the main scope of extending the generation of ultrashort pulses at LCLS to the sub-femtosecond (sub-fs) regime. As the project produced the expected results, an upgrade called XLEAP-II is being designed to provide the same functionality to LCLS-II. The XLEAP project utilized one variable gap wiggler to produce sub-fs X-ray pulses. The upgrade will involve four additional wigglers in the form of repurposed LCLS fixed gap undulators mounted on translation stages. This paper describes the design of the hardware and software architecture utilized in the motion control system of the wigglers. First it discusses how the variable gap wiggler was upgraded to be controlled by an Aerotech Ensemble motion controller through an EPICS Soft IOC (input-output controller). Then the motion control strategy for the additional four wigglers, also based around Aerotech controllers driving servomotors, is presented. Lessons learned from operating the wiggler and undulators during LCLS operation are discussed and utilized as a base upon which the upgraded motion control system is designed and built. Novel challenges are also identified and mitigations are discussed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA099  
About • paper received ※ 01 October 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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WEPHA102 A Software Suite for the Radiation Tolerant Giga-bit Transceiver - Slow Control Adapter 1333
 
  • P. Moschovakos, P.P. Nikiel, S. Schlenker
    CERN, Meyrin, Switzerland
  • H. Boterenbrood
    NIKHEF, Amsterdam, The Netherlands
  • A. Koulouris
    NTUA, Athens, Greece
 
  The future upgrades of the LHC (Large Hadron Collider) will increase its luminosity. To fulfill the needs of the detector electronic upgrades and in particular to cope with the extreme radiation environment, the GBT-SCA (Giga-Bit Transceiver - Slow Control Adapter) ASIC was developed for the control and monitoring of on-detector electronics. To benefit maximally from the ASIC, a flexible and hardware interface agnostic software suite was developed. A hardware abstraction layer - the SCA software package - exploits the abilities of the chip, maximizes its potential performance for back-end implementations, provides control over ASIC configuration, and enables concurrent operations wherever possible. An OPC UA server was developed on top of the SCA software library to integrate seamlessly with distributed control systems used for detector control and Trigger/DAQ (Data AcQuisition) configuration, both of which communicate with the GBT-SCA via network-attached optical link receivers based on FPGAs. This paper describes the architecture, design and implementation aspects of the SCA software suite components and their application in the ATLAS experiment.  
poster icon Poster WEPHA102 [3.008 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA102  
About • paper received ※ 30 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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