Keyword: PLC
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MOAPP02 The SPIRAL2 Control System Status Just Before the First Beam cavity, controls, linac, machine-protect 8
 
  • C.H. Haquin, P. Anger, P.-E. Bernaudin, C. Berthe, F. Bucaille, P. Dolegieviez, C.H. Patard, D. Touchard, A.H. Trudel, Q. Tura
    GANIL, Caen, France
  
  The SPIRAL2 Facility at GANIL is based on the construction of a superconducting LINAC (up to 5 mA - 40 MeV deuteron beams and up to 1 mA - 14.5 MeV/u heavy ion beams) with two experimental areas called S3 and NFS [1, 2]. At the end of this year, we will reach an important milestone with the first beam accelerated by the superconducting LINAC. The control system of the new facility relies on EPICS and PLC technologies. This paper will focus on the latest validated systems: machine protection system, the LINAC cryogenic system and the radio frequency system of the superconducting cavities. The validation requested a huge effort from all the teams but allow the project to be ready for this important moment.  
slides icon Slides MOAPP02 [6.262 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOAPP02  
About • paper received ※ 23 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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MOBPP01 PLCverif Re-engineered: An Open Platform for the Formal Analysis of PLC Programs controls, software, target, interface 21
 
  • E. Blanco Viñuela, D. Darvas
    CERN, Geneva, Switzerland
  • V. Molnár
    BUTE, Budapest, Hungary
  
  Programmable Logic Controllers (PLC) are widely used for industrial automation in industry and at CERN. The reliability of PLC software is crucial, but typically only testing is used to validate it. Our work targets the use of formal verification in practical ways for many years, which showed that it can be beneficial and practically applicable to various PLC programs. In this paper, we present PLCverif, our platform for formal analysis of PLC programs which has largely enhanced the quality of the deployed PLC software. By re-engineering the previous internal prototype tool, we built PLCverif to be an open, extensible platform that can be used not only for CERN’s specific PLC programs. PLCverif is licensed under an open source license, allowing the interested parties to use and extend it.  
slides icon Slides MOBPP01 [5.586 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOBPP01  
About • paper received ※ 27 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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MOBPP04 The ELT M1 Local Control Software: From Requirements to Implementation controls, network, GUI, software 38
 
  • L. Andolfato, J. Argomedo, C. Diaz Cano, R. Frahm, T.R. Grudzien, N. Kornweibel, D. Ribeiro Gomes dos Santos, J. Sagatowski
    ESO, Garching bei Muenchen, Germany
  • C.M. Silva
    CSW, Coimbra, Portugal
  
  This paper presents the ELT M1 Local Control Software. M1 is the 39 m primary mirror of the Extremely Large Telescope composed of 798 hexagonal segments. Each segment can be controlled in piston, tip, and tilt, and provides several types of sensor data, totaling 24000 I/O points. The control algorithm, used to dynamically maintain the alignment and the shape of the mirror, is based on three pipelined stages dedicated to collect the sensors’ measurements, compute new references, and apply them to the actuators. Each stage runs at 500 Hz and the network traffic produced by devices and servers is close to 1.2 million UDP packets/s. The reliability of this large number of devices is improved by the introduction of a failure detection isolation and recovery SW component. The paper summarizes the main SW requirements, presents the architecture based on a variation of the estimator/controller/adapter design pattern, and provides details on the implementation technologies, including the SW platform and the application framework. The lessons learned from deploying the SW on CPUs with different NUMA architectures and from the adoption of different testing strategies are also described.  
slides icon Slides MOBPP04 [5.071 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOBPP04  
About • paper received ※ 20 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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MOMPL008 New Neutron Sensitive Beam Loss Monitor (nBLM) neutron, detector, controls, EPICS 137
 
  • Y. Mariette, Q. Bertrand, F. Gougnaud, T.J. Joannem, V. Nadot, T. Papaevangelou, L. Segui
    CEA-IRFU, Gif-sur-Yvette, France
  • F.S. Alves, I. Dolenc Kittelmann
    ESS, Lund, Sweden
  • W. Cichalewski, G.W. Jabłoński, W. Jałmużna, R. Kiełbik
    TUL-DMCS, Łódź, Poland
  
  The beam loss detection is of the utmost importance for accelerator safety. At CEA, we are closely collaborating with ESS and DMCS on development of ESS nBLM. The system is based on Micromegas* gaseous detector sensitives to fast neutrons produced when beam particles hit the accelerator materials. This detector has powerful features: reliable neutron detection and fast time response. The nBLM control system provides slow monitoring, fast security based on neutron counting and post mortem data. It is fully handled by EPICS, which drives 3 different subsystems: a Siemens PLC regulates the gas line, a CAEN crate controls low and high voltages, and a MTCA system based on IOxOS boards is in charge of the fast data processing for 16 detectors. The detector signal is digitized by the 250 Ms/s ADC, which is further processed by the firmware developed by DMCS and finally retrieved and sent to EPICS network. For other accelerator projects, we are designing nBLM system close to ESS nBLM one. In order to be able to sustain the full control system, we are developing the firmware and the driver. This paper summarizes CEA’s work on the nBLM control system for the ESS and other accelerators.
*Micromegas: http://irfu.cea.fr/en/Phocea/Viedeslabos/Ast/asttechnique.php?idast=2307
 		 
poster icon Poster MOMPL008 [2.475 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOMPL008  
About • paper received ※ 26 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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MOPHA006 SwissFEL Undulator Control System undulator, controls, FEL, MMI 197
 
  • A.D. Alarcon
    PSI, Villigen PSI, Switzerland
  
  SwissFEL has successfully commissioned the Aramis beamline, hard x-rays (2 - 12.4 KeV), and the Athos line, soft x-rays (200 eV to 2 keV), will start commissioning in 2020. The Aramis undulator line is currently composed of 13 variable-gap in-vacuum undulators. The Athos line will be made of 16 APPLE II type undulators (Advanced Planar Polarized Light Emitter). Both beamlines have each undulator segment on a 5D mover system; they both also have phase shifters and movable quadrupole tables in between segments. PLCs and DeltaTau motor controllers are used to control motion, for I/O interface, and interlocks. EPICS IOCs communicate with the controllers and provide additional logic and some high level functionality. Further higher level functions are provided through Python scripts and other high level languages.  
poster icon Poster MOPHA006 [1.265 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA006  
About • paper received ※ 30 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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MOPHA009 Commissioning the Control System for Cryomodule Cryogenics Distribution System in Test Stand 2 controls, cryomodule, cryogenics, MMI 205
 
  • E. Asensi Conejero, M. Boros, N. Elias, J. Fydrych, W. Hees, P.L. van Velze
    ESS, Lund, Sweden
  • W. Gaj
    IFJ-PAN, Kraków, Poland
  
  The European Spallation Source (ESS) is currently under construction in Lund, Sweden. The superconducting section of the linear accelerator consists of three parts; 26 double-spoke cavities gathered in 13 cryomodules, 36 medium beta elliptical cavities gathered in 9 cryomodules and 84 high beta elliptical cavities gathered in 21 cryomodules. The cryomodules have to be tested in a dedicated test facility before installation in the ESS tunnel, Test Stand 2 is dedicated to the tests of the medium beta and high beta elliptical cryomodules for the ESS linear accelerator. In this paper, the authors present the commissioning of the PLC based control system for the cryogenic circuits in the elliptical cavities cryomodules. These circuits allow the circulation of gas Helium at 4.5 K and liquid Helium at 2 K to cool down the niobium cavities and reach the material superconducting state, as well as to keep a thermal shield with gas Helium at 50 K. Cryogenic valves, heaters and different sort of sensors need to be controlled and monitored to operate this system successfully from a Control Room using dedicated Operator Interfaces developed in CS-Studio and following the EPICS architecture.  
poster icon Poster MOPHA009 [1.369 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA009  
About • paper received ※ 28 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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MOPHA019 Upgrade of the Control System for the LHC High Level RF controls, software, interface, cavity 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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MOPHA041 Cause-and-Effect Matrix Specifications for Safety Critical Systems at CERN operation, controls, SCADA, cryogenics 285
 
  • B. Fernández Adiego, E. Blanco Viñuela, M. Charrondiere, R. Speroni
    CERN, Geneva, Switzerland
  • M. Bonet, H.D. Hamisch, M.H. de Queiroz
    UFSC, Florianópolis, Brazil
  
  One of the most critical phases in the development of a Safety Instrumented System (SIS) is the functional specification of the Safety Instrumented Functions (SIFs). This step is carried out by a multidisciplinary team of process, controls and safety experts. This functional specification must be simple, unambiguous and compact to allow capturing the requirements from the risk analysis, and facilitating the design, implementation and verification of the SIFs. The Cause and Effect Matrix (CEM) formalism provides a visual representation of Boolean expressions. This makes it adequate to specify stateless logic, such as the safety interlock logic of a SIS. At CERN, a methodology based on the CEM has been applied to the development of a SIS for a magnet test bench facility. This paper shows the applicability of this methodology in a real magnet test bench and presents its impact in the different phases of the IEC 61511 safety lifecycle.  
poster icon Poster MOPHA041 [0.751 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA041  
About • paper received ※ 27 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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MOPHA052 Evolution Based on MicroTCA and MRF Timing System controls, EPICS, timing, MEBT 334
 
  • F. Gougnaud, P. Bargueden, J.F. Denis, A. Gaget, P. Guiho, T.J. Joannem, A. Lotode, Y. Lussignol, Y. Mariette, V. Nadot, N. Solenne
    CEA-DRF-IRFU, France
  • Q. Bertrand, G. Ferrand, F. Gohier
    CEA-IRFU, Gif-sur-Yvette, France
  • I. Hoffman Moran, E. Reinfeld, I. Shmuely
    Soreq NRC, Yavne, Israel
  
  For many years our Institute CEA IRFU has had a sound experience in VME and EPICS. For the accelerator projects SPIRAL2 at Ganil in Normandy and IFMIF/LIPAc at JAEA/Rokkasho (Japan) the EPICS control systems were based on VME. For 5 years our Institute has been involved in several in-kind collaboration contracts with ESS. For the first contracts (ESS test stands, Source and LEBT controls) ESS recommended us to use VME based solutions on IOxOS boards. Our close collaboration with ESS, their support and the requirements for new projects have led us to develop a standardized hardware and software platform called IRFU EPICS Environment based on microTCA.4 and MRF timing system. This paper describes the advantages of the combination of these recent technologies and the local control system architectures in progress for the SARAF project.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA052  
About • paper received ※ 30 September 2019       paper accepted ※ 11 October 2019       issue date ※ 30 August 2020  
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MOPHA062 The Personnel Safety System of ELI-ALPS laser, controls, interlocks, radiation 351
 
  • F. Horvath, L.J. Fülöp, Sz. Horváth, Z. Héjja, T. Kecskés, I. Kiss, V. Kurusa, G. Kávai, K. Untener
    ELI-ALPS, Szeged, Hungary
  
  Funding: ELI-ALPS is supported by the European Union and cofinanced by the European Regional Development Fund (GOP-1.1.1-12/B-2012-000, GINOP-2.3.6-15-2015-00001)
ELI-ALPS will be the first large-scale attosecond facility accessible to the international scientific community and its user groups. The facility-wide Personnel Safety System (PSS) has been successfully developed and commissioned for the majority of the laboratories. The system has three major goals. First, it provides safe and automatic sensing and interlocking engineering measures as well as monitoring and controlling interfaces for all laboratories in Building A: emergency stop buttons, interlock and enabling signals, door and roller blind sensors, and entrance control. Second, it integrates and monitors the research technology equipment delivered by external parties as black-box systems (all laser systems, and some others). Third, it includes the PSS subsystems of research technology equipment developed on site by in-house and external experts (some of the secondary sources). The gradual development of the system is based on the relevant standards and best practices of functional safety as well as on an iterative and systematic lifecycle incorporating several internal and external reviews. The system is implemented with an easily maintainable network of safety PLCs. 		 
poster icon Poster MOPHA062 [1.323 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA062  
About • paper received ※ 30 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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MOPHA066 Electronics for LCLS-II Beam Containment System Shut-off electron, interface, electronics, linac 366
 
  • R.A. Kadyrov, D.G. Brown, E.P. Chin, C.I. Clarke, M. Petree, E. Rodriguez, F. Tao
    SLAC, Menlo Park, California, USA
  
  LCLS-II is a new FEL which is under construction at SLAC National Accelerator Laboratory. Its superconducting electron linac is able to produce up to 1.2 MW of beam power. Beam Containment System (BCS) is employed to limit the beam power and prevent excessive radiation in case of electron beam loss or FEL breach. Fast and slow shut-off paths are designed for devices with different response requirements. The system is required to shut-off the beam within 200 µs for some of the fast sensors. Fast path is based on custom electronic designs, and slow path leverages industrial safety-rated PLC hardware. The system spans for 4 km of LCLS-II and combines inputs from about 150 sensors of different complexity. Architecture is based on multiple levels starting with summing sensor inputs locally and to converting them into permits for the shut-off devices. Each level is implemented redundantly. Automated test and manual tests at all levels are implemented in the system. System architecture, electronics design and cable plant challenges are presented below.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA066  
About • paper received ※ 27 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA078 Renovation of the SPS Personnel Protection System: A Configurable Approach site, controls, software, operation 395
 
  • T. Ladzinski, B. Fernández Adiego, F. Havart
    CERN, Meyrin, Switzerland
  
  The renovation of the SPS Personnel Protection System (PPS) comprises the installation of industrial access control solutions and the implementation of a new safety instrumented system tailored to the particular needs of the accelerator. The SPS has been a working horse of the CERN accelerator complex for many decades and its configuration has changed through the many years of operation. The classic solutions for safety systems design, used in the LHC and PS machines, have not been judged adequate for this accelerator undergoing perpetual changes, composed of many sites forming several safety chains. In order to avoid expensive software modifications, each time the accelerator configuration evolves, a configurable safety software design was proposed. This paper presents the hardware architecture of the PLC-based SPS PPS and the configurable software architecture proposed. It further reports on the testing and formal verification activities performed to validate the safety software and discusses the pros and cons of the configurable approach.  
poster icon Poster MOPHA078 [2.063 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA078  
About • paper received ※ 29 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA080 Automatic Reconfiguration of CERN 18 kV Electrical Distribution - the Auto Transfer Control System network, controls, operation, Ethernet 400
 
  • J.C. Letra Simoes, S. Infante, F.A. Marin
    CERN, Geneva, Switzerland
  
  Availability is key to electrical power distribution at CERN. The CERN electrical network has been consolidated over the last 15 years in order to cope with the evolving needs of the laboratory and now comprises a 200 MW supply from the French grid at 400 kV, a partial back up from the Swiss grid at 130 kV and 16 diesel generators. The Auto Transfer Control System has a critical role in minimizing the duration of power cuts on this complex electrical network, thus significantly reducing the impact of downtime on CERN accelerator operation. In the event of a major power loss, the control system analyzes the global status of the network and decides how to reconfigure the network from alternative sources, following predefined constraints and priorities. The Auto Transfer Control System is based on redundant logical controllers (PLC) with multiple remote IO stations linked via an Ethernet IP ring (over optical fiber) across the three major substations at CERN. This paper describes the system requirements, constraints and the applicable technologies, which will be used to deliver an operational system by 2020.  
poster icon Poster MOPHA080 [1.586 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA080  
About • paper received ※ 26 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA091 ESS MEBT Control System Integration controls, EPICS, MEBT, interlocks 421
 
  • I. Mazkiaran, I. Bustinduy, G. Harper, A. Rodríguez Páramo, C. de la Cruz
    ESS Bilbao, Zamudio, Spain
  • J.P.S. Martins
    ESS, Lund, Sweden
  
  The high power linac of European Spallation Source, ESS (Lund, Sweden), accelerates 62.5 mA of protons up to 2 GeV in a sequence of normal conducting and superconducting accelerating structures. The Medium Energy Beam Transport (MEBT) line has been designed tested and mounted at ESS Bilbao premises to guarantee tight requirements are met. The main purpose of this 3.62 MeV MEBT is to match the RFQ output beam characteristics to the DTL input requirements both transversally using quadrupoles, and longitudinally RF buncher cavities. Additionally, the beam is also cleaned by efficient use of halo scrapers and pulse shape by means of a fast chopper. Besides, beam characterization (beam current, pulse shape, size, emittance) is performed using a comprehensive set of diagnostics. Therefore, firstly, control integration of magnets and steerers power supplies, for quadrupoles, as well as synchronism, triggering, linked to high voltage pulsers within the chopper control, is part of the commitment for the present work. Secondly, the control developments of beam instruments such as Faraday Cup and Emittance Meter Unit will be described. All the integrations are based on ESS EPICS environment.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA091  
About • paper received ※ 27 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA103 The PLC Control System for the RF Upgrade of the Super Proton Synchrotron controls, cavity, GUI, hardware 458
 
  • J.C. Oliveira, L. Arnaudon, A. Diaz Fontalva
    CERN, Geneva, Switzerland
  
  During the CERN Long Shutdown 2 (LS2), the 200 MHz main acceleration system of the Super Proton Synchrotron (SPS) is being upgraded. Two cavities will be added to reach a total of six. Each new cavity will be powered by Solid State Power Amplifiers (SSPA) grouped into 16 "towers" of 80 modules each, in total 2560 modules. This paper describes the newly developed control system which uses a master PLC for control and interlock of each cavity and the slave PLC controllers for each of the solid state amplifier towers. The system topology and design choices are discussed. Control and interlocking of all subsystems necessary for the operation of an RF cavity are detailed, and the interaction between the master and slave PLC controllers is outlined. We discuss some preliminary results and performance of the test installation.  
poster icon Poster MOPHA103 [3.012 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA103  
About • paper received ※ 27 September 2019       paper accepted ※ 02 October 2020       issue date ※ 30 August 2020  
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MOPHA123 Vacuum Controls Configurator: A Web Based Configuration Tool for Large Scale Vacuum Control Systems vacuum, database, controls, SCADA 511
 
  • A.P. Rocha, I.A. Amador, S. Blanchard, J. Fraga, P. Gomes, C.V. Lima, G. Pigny, P. Poulopoulou
    CERN, Geneva, Switzerland
  
  The Vacuum Controls Configurator (vacCC) is an application developed at CERN for the management of large-scale vacuum control systems. The application was developed to facilitate the management of the configuration of the vacuum control system at CERN, the largest vacuum system in operation in the world, with over 15,000 vacuum devices spread over 128 km of vacuum chambers. It allows non-experts in software to easily integrate or modify vacuum devices within the control system via a web browser. It automatically generates configuration data that enables the communication between vacuum devices and the supervision system, the generation of SCADA synoptics, long and short term archiving, and the publishing of vacuum data to external systems. VacCC is a web application built for the cloud, dockerized, and based on a microservice architecture. In this paper, we unveil the application’s main aspects concerning its architecture, data flow, data validation, and generation of configuration for SCADA/PLC.  
poster icon Poster MOPHA123 [1.317 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA123  
About • paper received ※ 01 October 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 controls, simulation, MMI, operation 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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MOPHA132 Control System Integration of MAX IV Insertion Devices controls, insertion, insertion-device, TANGO 525
 
  • J. Lidón-Simon, N.S. Al-Habib, H.Y. Al-Sallami, A. Dupre, V.H. Hardion, M. Lindberg, P. Sjöblom, A. Thiel, G. Todorescu
    MAX IV Laboratory, Lund University, Lund, Sweden
  
  During the last 2.5 years, MAX IV have installed and commissioned in total 15 insertion devices out of which 6 are new in vacuum undulators, 1 in vacuum wiggler, and 7 in-house developed and manufactured Apple II elliptical polarized undulators. From the old lab, MAXLAB, 1 PU is also reused. Looking forward, 3 additional insertion devices will be installed shortly. As MAX IV only has one Control and IT group, the same concept of machine and beamline installation have been applied also to the insertion devices, i.e. Sardana, Tango, PLC, and IcePAP integration. This has made a seamless integration possible to the rest of the facility in terms of user interfaces, alarm handling, archiving of status, and also future maintenance support.  
poster icon Poster MOPHA132 [4.755 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA132  
About • paper received ※ 30 September 2019       paper accepted ※ 11 October 2019       issue date ※ 30 August 2020  
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MOPHA139 Implementation of the PLC based Machine Protection System for Magnets at ESS EPICS, operation, machine-protect, linac 554
 
  • D. Sánchez-Valdepeñas, M. Carroll, A. Nordt, M. Zaera-Sanz
    ESS, Lund, Sweden
  
  The special properties of the neutrons allow to study the matter structure and dynamics of atoms and molecules. Neutron scattering is applied in a wide range of research fields such as chemistry of materials, biology, magnetism and pharmacy. The European Spallation Source ERIC (ESS) will be the most powerful neutron source in the world with the vision to help the researchers to develop new solutions for the challenges of our time. Inside the Integrated Control System Division (ICS), the Protection Systems group will provide a Beam Interlock System to protect the beam and to avoid the activation of equipment. One of these interlock systems is the Machine Protection System for Magnets (MPSMag), which collects the signals coming from each of the 150 quadrupoles distributed along the 600 meters long LINAC to prevent beam losses. The MPSMag first prototype has been implemented using industrial Programmable Logic Controllers (PLCs), the Profinet real-time fieldbus communications protocol, and Siemens TIA Portal software to fulfill the high availability requirements of the facility. The concept of operation, the state machine, and the electrical design will be presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA139  
About • paper received ※ 29 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA141 Dynamic System Reliability Modelling of SLAC’s Radiation Safety Systems controls, operation, electron, experiment 558
 
  • F. Tao, K.W. Belt
    SLAC, Menlo Park, California, USA
  
  When the LCLS-II project is complete, there will be three major Department of Energy (DOE) beam programs occupying the same 2-mile long accelerator tunnel, e.g. LCLS, LCLS-II and FACET-II. In addition to the geographical overlap, the number of beam loss monitors of all types has been also significantly expanded to detect power beam loss from all sources. All these factors contribute to highly complex Radiation Safety Systems (RSS) at SLAC. As RSS are subject to rigorous configuration control, and their outputs are permits directly related to beam production, even small faults can cause a long down time. As all beam programs at SLAC have the 95% beam availability target, the complex RSS’s contribution to overall beam availability and maintainability is an important subject worth detailed analysis. In this paper, we apply the dynamic system reliability engineering techniques to create the RSS reliability model for all three beam programs. Both qualitative and semi-quantitative approaches are used to identify the most critical common causes, the most vulnerable subsystem as well as the areas that require future design improvement for better maintainability.  
poster icon Poster MOPHA141 [0.863 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA141  
About • paper received ※ 01 October 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA142 FACET-II Radiation Safety Systems Development radiation, linac, controls, electron 562
 
  • F. Tao, B.M. Bennett, N. Lipkowitz
    SLAC, Menlo Park, California, USA
  
  Facility for Advanced Accelerator Experimental Tests (FACET)-II is an upgrade of the FACET. It uses the middle third of SLAC’s 2-mile long linear accelerator to accelerate the electron beam to 10 GeV, with positron beam to be added in the Stage 2 of the project. Once the project completes in late 2019, it will be operated as a Department of Energy (DOE) user facilities for advanced accelerator science studies. In this paper, we will describe the Radiation Safety Systems (RSS) design and implementation for FACET-II project. RSS include Personnel Protection System (PPS) and Beam Containment System (BCS). Though both systems are safety critical, different technologies are used to implement safety functions. PPS uses Siemens PLC as the backbone for control but legacy CAMAC for data acquisition, while BCS develops customized electronics for faster response to protect safety devices from radiation induced damage.  
poster icon Poster MOPHA142 [1.284 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA142  
About • paper received ※ 01 October 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOPHA169 Design of Vacuum Control System for Superconducting Accelerator vacuum, controls, operation, interface 634
 
  • J.M. Zhou, A.L. Li, K.N. Li, C.H. Peng, J. Zheng
    CIAE, Beijing, People’s Republic of China
  
  A linear superconducting accelerator is being constructed in our institute. Its vacuum control system should be convenient and reliable. We intend to concentrate the control of each vacuum unit into a control box that implement the simple hard interlocking logic and the final action output of the vacuum device and the complete interlocking logic between the vacuum devices is realized in the PLC. Operators can perform local operation through the front panel of the control box or remotely control through the computer by switching the local/remote switch. In addition, the control flow of vacuum extraction and the protection flow when leakage occurs are also given in this paper.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOPHA169  
About • paper received ※ 28 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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MOSH3001 An EPICS Channel Access Implementation on Siemens PLCs EPICS, controls, framework, operation 648
 
  • M. Boros
    evopro Holding Zrt., The evopro group, Budapest, Hungary
  • R.N. Fernandes
    ESS, Lund, Sweden
  • B. Peceli, G. Singler
    evopro Innovation Ltd, Budapest, Hungary
  
  At the European Spallation Source (ESS), a neutron research facility in Sweden, most of the controls are based on PLCs and layered in the following (traditional) way: field equipment <-> PLC <-> EPICS IOC <-> high-level applications. In many situations, the EPICS IOC layer will not implement control logic per se and is only used for converting PLC tags into EPICS PVs to enable the usage of high-level applications such as CS-Studio, Archiver Appliance, and BEAST. To alleviate this (traditional) way of doing controls, we propose a simpler approach: implementation of the Channel Access (CA) protocol in the PLC layer for the latest family of Siemens PLCs to remove the EPICS IOC layer. We called it S7EPICS. S7EPICS fully respects version 13 of the CA protocol specification, and supports multiple EPICS-based client connections at the same time - e.g. CS-Studio, Archiver Appliance - without a noticeable service degradation (i.e. delays). In this paper we introduce this implementation, its architecture and workflow, benchmarking results of tests performed, and future developments that could be pursued such as authentication & authorization mechanisms using, e.g., the Arrowhead Framework.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-MOSH3001  
About • paper received ※ 30 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WEDPR02 Benefits of Low Code Development Environments on Large Scale Control Systems controls, interface, software, MMI 976
 
  • B. Lefort, V. Costa
    CERN, Meyrin, Switzerland
  
  The rapid evolution of science and of scientific projects usually implies high levels of mobility among researchers, engineers and applied scientists. In parallel, software development has been getting easier and easier as computing technology has evolved. One direct consequence of these two paradigms is a proliferation of small software that becomes vulnerable in many ways, when the person who develops and maintains it departs. Inspector is a low-code development platform to design control interfaces. It features a visual interface composer, a visual programming language and supports Python. More than 600 Inspector applications are used at CERN. We will explain how people with little experience of writing software can develop applications that they could not otherwise explicitly code for themselves. Finally, we will demonstrate how it offers the organization enhanced security and higher productivity, as well as relieving the load on IT for bug fixes and non-compliance.  
slides icon Slides WEDPR02 [6.300 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEDPR02  
About • paper received ※ 26 September 2019       paper accepted ※ 20 October 2019       issue date ※ 30 August 2020  
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WEPHA002 LCLS-II Cryomodule and Cryogenic Distribution Control controls, cryomodule, cryogenics, cavity 1071
 
  • D.T. Robinson, A.L. Benwell, C. Bianchini, D. Fairley, S.L. Hoobler, K.J. Mattison, J. Nelson, A. Ratti
    SLAC, Menlo Park, California, USA
  • L.E. Farrish, J. Gubeli, C. Hovater, K. Jordan, W. Moore
    JLab, Newport News, Virginia, USA
  • J.A. Kaluzny, A. Martinez
    Fermilab, Batavia, Illinois, USA
  
  The new superconducting Linear Coherent Light Source (LCLS-II) at the SLAC National Accelerator Laboratory will be an upgrade to LCLS, the world’s first hard X-ray free-electron laser. LCLS-II is in an advanced stage of construction with equipment for both Cryoplants as well as more than half of the 37 cryomodules onsite. Jefferson Lab (JLab) is a partner lab responsible for building half of the LCLS-II cryomodules. Hence the Low Energy Recirculation Facility (LERF) at JLab was used to stage and test LCLS-II cryomodules before shipping them to SLAC. LERF was set up to test two cryomodules at a time. LERF used LCLS-II cryogenic controls instrumentation racks, Programmable Logic Controllers (PLC) controls and Experimental Physics and Industrial Control System (EPICS) Input/Output Controllers (IOCs) with the intention to use the LERF setup to check-out and verify cryogenic controls for LCLS-II. The cryogenic controls first utilized at LERF would then be replicated for controlling all 37 cryomodules via an EPICS user interface. This paper discusses the cryogenic controls currently developed for implementation in the LCLS-II project.  
poster icon Poster WEPHA002 [1.119 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA002  
About • paper received ※ 28 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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WEPHA013 Programmable Logic Controller Systems for SPIRAL2 controls, linac, operation, cryomodule 1089
 
  • C. Berthe, F. Bucaille, G. Delavallee, G. Duteil, C. Hocini, J.-F. Rozé, A.H. Trudel, Q. Tura
    GANIL, Caen, France
  • P.G. Graehling
    IPHC, Strasbourg Cedex 2, France
  • R. Touzery
    CEA-DRF-IRFU, France
  
  PLC provides a large part of the SPIRAL 2 project’s commands. The SPIRAL2 project is based on a multi-beam driver in order to allow both ISOL and low-energy in-flight techniques to produce Radioactive Ion Beams (RIB). A superconducting light/heavy-ion linac with an acceleration potential of about 40 MV capable of accelerating 5 mA deuterons up to 40 MeV and 1 mA heavy ions up to 14.5 MeV/u is used to bombard both thick and thin targets. The PLCs provide vacuum control, access control, part of the machine protection system, control of the cryogenic distribution system, cooling controls, control of RF amplifiers, they are associated with the safety control system. The standards used are presented as well as the general synoptic of the PLC control system. The details of the major systems are presented, the Cryo distribution, the machine protection system, a safety system.  
poster icon Poster WEPHA013 [4.786 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA013  
About • paper received ※ 30 September 2019       paper accepted ※ 19 October 2019       issue date ※ 30 August 2020  
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WEPHA017 Integration of Wireless Mobile Equipment in Supervisory Application controls, vacuum, database, MMI 1102
 
  • S. Blanchard, R. Ferreira, P. Gomes, G. Pigny, A.P. Rocha
    CERN, Geneva, Switzerland
  
  Pumping group stations and bake-out control cabinets are temporarily installed close to vacuum systems in CERN accelerator tunnels, during their commissioning. The quality of the beam vacuum during operation depends greatly on the quality of the commissioning. Therefore, the integration of mobile equipment in the vacuum supervisory application is primordial. When connected to the control system, the mobile stations appear automatically integrated in the synoptic. They are granted with the same level of remote control, diagnostics and data logging as fixed equipment. The wireless connection and the communication protocol with the supervisory application offer a flexible and reliable solution with high level of integrity.  
poster icon Poster WEPHA017 [1.808 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA017  
About • paper received ※ 30 September 2019       paper accepted ※ 19 October 2019       issue date ※ 30 August 2020  
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WEPHA018 Testing Solutions for Siemens PLCs Programs Based on PLCSIM Advanced hardware, ISOL, simulation, controls 1107
 
  • E. Blanco Viñuela, D. Darvas
    CERN, Geneva, Switzerland
  • Gy. Sallai
    BUTE, Budapest, Hungary
  
  Testing Programmable Logic Controllers (PLCs) is challenging, partially due to the lack of tools for testing. Isolating a part of the PLC program, feeding it with test inputs and checking the test outputs often require manual work and physical hardware. The Siemens PLCSIM Advanced tool can simulate PLCs and provide a rich application programming interface (API). This paper presents a new CERN made tool based on PLCSIM Advanced and the TIA Portal Openness API. The tool takes a test case described in an intuitive, tabular format, which is then executed with the full PLC program or a selected part of it, effectively allowing unit testing. The inputs can be fed and the outputs can be captured via the PLCSIM API. This way the tests can be executed and evaluated automatically, without manual work or physical hardware. Therefore, it is possible to provide an automated and scalable continuous testing solution for PLC programs to reveal errors as early as possible.  
poster icon Poster WEPHA018 [1.026 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA018  
About • paper received ※ 27 September 2019       paper accepted ※ 09 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 controls, detector, hardware, software 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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WEPHA046 EtherCAT Open Source Solution at ESS controls, EPICS, real-time, ion-source 1195
 
  • J. Etxeberria, J.H. Lee, A. Sandström
    ESS, Lund, Sweden
  
  The European Spallation Source (ESS) is a research facility being built in Lund, Sweden. The Integrated Control System (ICS) division at ESS is responsible for defining and providing a control system for all the ESS facility. ICS decided to establish open-source EtherCAT systems for mid-performance data acquisition and motion control for accelerator applications. For instance, EtherCAT will be used when the I/O system needs to be beam-synchronous; it needs to acquire signals in the kHz range; or needs to be spread across locations that are far from each other and would need cumbersome cabling, but still, belong to one system. Following the ICS guideline, Motion Control and Automation Group developed EtherCAT Motion Control (ECMC) which is based on EtherLab open-source master. This solution was focused on Motion Control applications, but finally, data acquisition systems will be integrated into EPICS using the same approach. In this paper, we will present the ECMC solution and analyze its features showing some real applications at ESS.  
poster icon Poster WEPHA046 [2.580 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA046  
About • paper received ※ 30 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WEPHA049 CERN Neutrino Cryogenic Control System Technology: From the WA105 Test Facility to the NP04 and NP02 Platforms controls, cryogenics, experiment, operation 1209
 
  • M. Pezzetti, C.F. Fluder, R. Orlandi
    CERN, Geneva, Switzerland
  
  The CERN Neutrino Platform is CERN’s undertaking to foster fundamental research in neutrino physics at particle accelerators worldwide. In this contest CERN has constructed a series of cryogenic test facilities, first of this series is the 5 tons liquid Argon detector named WA105, succeeded by the 800 tons liquid Argon cryostats designated as NP04 and NP02 detectors. The cryogenic control system of these experiments was entirely designed and constructed by CERN to operate 365 days a year in a safe way through all the different phases aimed to cool down and fill the cryostat until reaching nominal stable conditions . This paper describes the process control system design methodology, the off line validation and the operational commissioning including fault scenario handling. A systematic usage of advanced informatics tools, such as CERN/CPC tools, Git and Jenkins, used to ensure a smooth and systematic software development of the process, is presented. Finally, particular attention is given to the adoption of the CERN cryogenic technical standard solutions to enhance reliability, safety, and flexibility of the system working 24 hours a day  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA049  
About • paper received ※ 30 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 controls, cryogenics, software, hardware 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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WEPHA068 A Control System Using EtherCAT Technology for The Next-Generation Accelerator controls, gun, vacuum, LLRF 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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WEPHA080 A Communication Protocol for Motion Control Applications at the JCNS Neutron Instruments controls, neutron, interface, Ethernet 1276
 
  • H. Kleines, F. Suxdorf
    FZJ, Jülich, Germany
  
  Main focus of slow control in neutron scattering is motion control for the movement of around 25 mechanical axes in a typical neutron instrument. The implementation of motion control functions in the JCNS neutron instruments at the FRM II research reactor in Garching, Germany, is based on Siemens S7 PLCs. A communication protocol called PMcomm which is optimized for motion control applications in neutron instruments has been developed at JCNS. PMcomm (PROFI motion communication) is based on PROFINET or PROFIBUS as the underlying transport protocol in order to facilitate the easy integration into the PLC world. It relies on the producer/consumer communication mechanism of PROFINET and PROFIBUS for the efficient direct access to often-used data like positions or status information. Coordinated movement of groups of axes is facilitated by a generic controller/axes model that abstracts from the specifics of the underlying motion control hardware. Simplicity was a major design goal of the protocol in order to allow an efficient and easy implementation on PLCs.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA080  
About • paper received ※ 08 October 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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WEPHA092 SNS Credited Pulse Energy Limit System Conceptual Design timing, controls, target, operation 1304
 
  • C. Deibele, D.C. Williams
    ORNL, Oak Ridge, Tennessee, USA
  • K.L. Mahoney
    ORNL RAD, Oak Ridge, Tennessee, USA
  
  Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract number DE-AC05-00OR22725.
The Controls Group at the Spallation Neutron Source (SNS) is designing a programmable signal processor based credited safety control that calculates pulsed beam energy based on beam kinetic energy and charge. The SNS Pulsed Energy Limit System (SPELS) must reliably shut off the beam if the average power exceeds 2.145 MW averaged over 60 seconds. This paper will cover the architecture and design choices needed to develop the system under the auspices of a programmable radiation-safety credit control. The authors will also introduce the concept of a graded failure approach that allows the credited system to continue operation in the presence of some faults. 		 
poster icon Poster WEPHA092 [0.981 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA092  
About • paper received ※ 30 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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WEPHA114 Integration of New Siemens S7-1500 PLC Family in UNICOS-CPC: Engineering Challenges and Performance Evaluation controls, SCADA, framework, MMI 1359
 
  • J.O. Ortolá Vidal, M. Vazquez Muñiz
    CERN, Geneva, Switzerland
  
  UNICOS-CPC (UNified Industrial COntrol System - Continuous Control Package) framework is the CERN standard solution for the design and implementation of continuous industrial process control applications. This paper reports on the design and test results of the integration of a new PLC platform, the new S7-1500 Siemens PLC (Programmable Logic Controllers) series. Special focus is given to the challenges faced during the integration due to the new software architecture of the PLC, as well as to the early stage of the development and interfaces provided by the supplier. The paper shows the TIA portal openness capabilities of the PLC development tool and presents a comprehensive evaluation of the PLC-SCADA communication mechanisms, as well as their integration in UNICOS-CPC.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA114  
About • paper received ※ 26 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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WEPHA170 First Steps in Automated Software Development Approach for LHC Phase II Upgrades CO2 Detector Cooling Systems controls, detector, operation, software 1488
 
  • L. Zwalinski, J. Daguin, L.T. Davoine, N. Frank, D. Giakoumi, M. Ostrega, P. Petagna, P. Tropea, B. Verlaat
    CERN, Meyrin, Switzerland
  
  With refrigerating power of the order of 1.5 kW at -35 °C and full compatibility with Detector Control System standards, Light Use Cooling Appliance for Surface Zones (LUCASZ) is the first movable medium size evaporative CO2 detector cooling system. By 2018 a series of 4 LUCASZ units has been fully deployed by the EP-DT group at CERN. LUCASZ is capable to provide CO2 cooling for various needs of detector development and testing required for Phase I&II upgrades of LHC experiments. This paper describes selected software and controls hardware ideas used to develop the LUCASZ control system as baseline solutions for CO2 cooling systems for Phase II upgrade of ATLAS and CMS trackers. The main challenges for future control system development will come from the number of cooling plants, the modularity, operation, and the implementation of backup philosophy. The introduction of automated software generation for both PLC and SCADA is expected to bring major improvement on the efficiency of control system implementation. In this respect, a unification step between experiments is highly required without neglecting specific needs of ATLAS and CMS.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA170  
About • paper received ※ 29 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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WESH4003 Continuous Integration for PLC-based Control Systems controls, framework, SCADA, interface 1527
 
  • B. Schofield, E. Blanco Viñuela
    CERN, Geneva, Switzerland
  • J.H.P.D.C. Borrego
    IPFN - IST, Bobadela, Portugal
  
  Continuous integration is widespread in software development, but a number of factors have thus far limited its use in PLC (Programmable Logic Controller) application development. A key requirement of continuous integration is that build and test stages must be automated. Automation of the build stage can be difficult for PLC developers, as building is typically performed with proprietary engineering tools. This has been solved by developing command line utilities which use the APIs of these tools. Another issue is that the program must be deployed to a real target (PLC) in order to test, something that is typically easier to do in other types of software development, where virtual environments may easily be used. This is solved by expanding the command line utilities to allow fully automated deployment of the PLC program. Finally, testing the PLC program presents its own challenges, as it is typically undesirable to alter the program in order to implement the tests natively in the PLC. This is avoided by using an industry standard protocol (OPC UA) to access PLC variables for testing purposes, allowing tests to be performed on an unaltered program.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-WESH4003  
About • paper received ※ 27 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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THAPP01 Automatic Generation of PLC Projects Using Standardized Components and Data Models database, framework, hardware, interface 1532
 
  • S.T. Huynh, H. Ali, B. Baranasic, N. Coppola, T. Freyermuth, P. Gessler, N. Jardón Bueno, M. Stupar, J. Tolkiehn, J. Zach
    EuXFEL, Schenefeld, Germany
  
  In an environment of rapidly expanding and changing control systems, a solution geared towards the automation of application dependent Programmable Logic Controller (PLC) projects becomes an increasing need at the European X-Ray Free Electron Laser (EuXFEL). Through the standardization of components in the PLC Framework, it becomes feasible to develop tools in order to automate the generation of over 100 Beckhoff PLC Projects. The focus will be on the PLC Management System (PLCMS) tool developed to achieve this. Provided with an electrical diagram markup (EPLAN XML export), the PLCMS queries the database model populated from the PLC Framework. It captures integration parameters and compatible EtherCAT fieldbus hardware. Additionally, inter-device communication and interlocking processes are integrated into the PLC from a defined user template by the PLCMS. The solution provides a flexible and scalable means for automatic and expedited deployment for the PLC control systems. The PLCMS can be further enhanced by interfacing into the Supervisory Control and Data Acquisition (SCADA) system for complete asset management of both PLC software and connected hardware across the facility.  
slides icon Slides THAPP01 [0.908 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THAPP01  
About • paper received ※ 30 September 2019       paper accepted ※ 10 October 2019       issue date ※ 30 August 2020  
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THAPP02 The Control System of the Elliptical Cavity and Cryomodule Test Stand Demonstrator for ESS controls, cryomodule, EPICS, cavity 1538
 
  • A. Gaget, T.J. Joannem
    CEA-DRF-IRFU, France
  
  CEA IRFU Saclay* is taking part of ESS (European Spallation Source)** construction through several packages and, especially in the last three years on the Elliptical Cavity and Cryomodule Test stand Demonstrator (ECCTD)***. The project consists of RF test, conditioning, cryogenic cool-down and regulations of eight cryomodules with theirs four cavities each. For now, two medium beta cavities cryomodules have been successfully tested. This paper describes the context and the realization of the control system for cryogenic and RF processes, added to cavities tuning motorization relying on COTS solutions: Siemens PLC, EtherCAT Beckhoff modules, IOxOS fast acquisition cards and MRF timing cards.
*IRFU, https://irfu.cea.fr/en/
**ESS, https://europeanspallationsource.se/
***ECCTD, http://irfu.cea.fr/dacm/en/Phocea/Viedeslabos/Ast/astvisu.php?idast=3359 		 
slides icon Slides THAPP02 [6.841 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THAPP02  
About • paper received ※ 27 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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THAPP04 EPICS Tools for Small Experiment Based on PLC EPICS, experiment, controls, software 1549
 
  • P. Lotrus, Q. Bertrand, F. Gohier, T.J. Joannem, K. Saintin
    CEA-IRFU, Gif-sur-Yvette, France
  • G.A. Durand, N. Solenne
    CEA-DRF-IRFU, France
  
  IRFU* software control team is involved from feasibility studies to equipment deployment into many different experiments by their size and running time. For many years, IRFU is using PLC solution for controlling part of the experiment, and two different SCADA: - MUSCADE, in-house SCADA dedicated to small experiments. - EPICS** for big facilities. With MUSCADE, IRFU has developed a set of tools that gives an easy and a fast way for PLC developers to configure the SCADA. As EPICS projects are growing in our department, we are working now on adapting those tools to EPICS: - PLCParser, which generates an EPICS database for PLC communication (S7PLC, Modbus). - CAFEJava (Channel Access For EPICS Java) API, which runs a simulated EPICS IOC to test EPICS synoptic, and provides EPICS process variables access for any Java application. - Dxf2Opi, which converts Autocad DXF files into OPI files for CSS*** software. - MOONARCH (Memory Optimizer ON ARCHiver Appliance), which reduces EPICS Archiver Appliance**** data files storage.
*IRFU, http://irfu.cea.fr
**EPICS, https://epics-controls.org
***CSS, https://controlsystemstudio.org
****Archiver Appliance https://slacmshankar.github.io/epicsarchiverdocs 		 
slides icon Slides THAPP04 [2.066 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THAPP04  
About • paper received ※ 11 September 2019       paper accepted ※ 11 October 2019       issue date ※ 30 August 2020  
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THAPP05 Overview of Acquisition and Control Electronics and Concepts for Experiments and Beam Transport at the European XFEL controls, interface, FEL, electron 1554
 
  • P. Gessler, H. Ali, F. Babies, K.-E. Ballak, H. Bamaga, B. Baranasic, O. Bieler, N. Coppola, K. Dornack, J. Eilers, D. Emes, B. Fernandes, M. Fobian, T. Freyermuth, S.T. Huynh, N. Jardón Bueno, M. Meyer, O. Oshtuk, P. Parlicki, J. Reifschläger, S. Sayar, H. Sotoudi Namin, M. Stupar, J. Tolkiehn, H. Vega Perez, S. Wagner, J. Zach
    EuXFEL, Schenefeld, Germany
  
  FPGA based fast electronics to acquire and pre-process signals of detectors and diagnostics and PLC based hardware and software for motion, vacuum and other control and monitoring applications are key elements of the European X-Ray Free Electron Laser. In order to bring the newly developed scientific user facility up and running, the underlying electrical and electronic components require a diverse array of tools and processes to be developed in order to meet the continually adapting requirements and make use of technological advances. Many challenges were faced, including high availability and up-time, adaptability to a dynamic environment, rapid lead-time for integration of complex components, numerous instrumentation installations and commissioning, high time resolution and subsequently, high demands on data and sampling rates, synchronization and real-time processing. In this contribution we will provide an overview of the selected technologies, developed concepts and solutions along with generically designed frameworks and tools, which aim to provide a high degree of standardization on the control systems and even automatic generation from requirements to final install.  
slides icon Slides THAPP05 [13.323 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THAPP05  
About • paper received ※ 30 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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THCPR02 Target Control and Protection Systems Lessons from SNS Operations target, controls, instrumentation, neutron 1623
 
  • D.L. Humphreys
    ORNL RAD, Oak Ridge, Tennessee, USA
  
  Funding: Work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract number DE-AC05-00OR22725.
The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory has been in operations since 2006 and proposes a project to build a Second Target Station (STS) to effectively double potential scientific output. The SNS target controls operate in a harsh environment which includes high radiation, exposure to gaseous radionuclides, and activated liquid mercury and mercury vapor. These conditions necessitate protective interlocks and credited controls for protection functions to ensure proper response to off-normal conditions. In order to inform the design of target controls for the STS, we have examined lessons learned during SNS operations regarding the design and implementation of the control and protection systems for the first target station (FTS). This paper will examine various aspects of the performance of the target control and protection systems including reliability, maintainability and sustainability given the challenging environment created by 1.4 MW operations. Specific topics include distributed control of various target subsystems, response to loss of power, selection of nuclear grade instrumentation, and applying these lessons to the design for the STS project. 		 
slides icon Slides THCPR02 [7.233 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THCPR02  
About • paper received ※ 01 October 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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THCPR03 A Safety Rated FPGA Framework for Fast Safety Systems FPGA, electron, hardware, diagnostics 1626
 
  • F. Tao, B.M. Bennett, D.G. Brown, J. Jones, M.W. Stettler
    SLAC, Menlo Park, California, USA
  
  In this paper, we will introduce a generic safety-rated FPGA design template. FMEDA analysis, hardware reliability modeling, firmware development, verification and validation will be described in details to demonstrate the IEC 61508 compliant development process. In this dual redundant design, each chain consists a FPGA chip from different manufacturers to minimize the potential common cause failures. Cross checks between FPGAs and end-to-end self-checks are performed to increase the diagnostic coverage and improve the reliability. Based on this safety FPGA template, an Average Current Monitor (ACM) system is developed at SLAC with the addition of a safety PLC for diagnostics and a HMI for user interface. The overall system is deployed as part of Beam Containment System (BCS) to limit the beam current with the target Safety Integrity Level (SIL) 2.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THCPR03  
About • paper received ※ 01 October 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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THCPR07 Electronics for LCLS-II Beam Containment System Loss Monitors electron, electronics, controls, radiation 1641
 
  • R.A. Kadyrov, C.I. Clarke, A.S. Fisher, M. Petree, C. Yee
    SLAC, Menlo Park, California, USA
  
  LCLS-II is a new FEL which is under construction at SLAC National Accelerator Laboratory. Its superconducting electron linac is able to produce up to 1.2 MW of beam power. In event of electron beam loss, radiation levels can exceed allowed levels outside thin shielding originally built for a lower energy LCLS linac. Beam Containment System (BCS) loss monitors are employed to detect the radiation and shut-off the beam within 200 µs, limit the radiation dose in occupied areas and minimize damage to the equipment. sCVD single-crystal diamond particle detectors are used as Point Beam Loss Monitors (PBLM) to detect losses locally. Fiber optics is selected as Long Beam Loss Monitor (LBLM). PMT at downstream end of the LBLM detects light produced by Cherenkov radiation. LBLM provides continuous coverage along electron beam path from the gun to the dump. Unified set of electronics is designed to integrate the charge from PMT or sCVD, compare the loss with predefined threshold and generate the fault if the limit is breached. Continuous self-checking is implemented for both types of sensors. Challenges in electronics design, cable selection and self-checking implementation are discussed.  
slides icon Slides THCPR07 [1.204 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THCPR07  
About • paper received ※ 27 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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THCPR08 SPIRAL2 Machine Protection System Status Report controls, electron, software, interface 1645
 
  • C.H. Patard, C. Berthe, F. Bucaille, G. Duteil, P. Gillette, E. Lécorché, G. Normand, J.-F. Rozé, Q. Tura
    GANIL, Caen, France
  
  The phase 1 of the SPIRAL2 facility, the extension project of the GANIL laboratory in Caen, France, is to be commissioned. The accelerator, composed of a normal conducting RFQ and a superconducting linac, is designed to accelerate high power deuteron and heavy ion beams up to 200 kW. A Machine Protection System (MPS) has been implemented to protect the accelerator from thermal damages for this very large range of beam intensities. This paper presents the solutions chosen for this system, composed of three subsystems: one dedicated to thermal protection which requires a PLC and a fast electronic system, a second one dedicated to enlarged safety protection, and a third safety subsystem dedicated to fast vacuum valve protection. Both of those subsystems work associated with a global EPICS-based control and HMI system, which gives the operation team global supervision of the accelerator and allows controlling sensor trigger thresholds, interlock system, beam initialization and power increase through the beam time structure. The MPS has been developed and is currently tested to be ready for the incoming SPIRAL2 commissioning.  
slides icon Slides THCPR08 [3.758 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-THCPR08  
About • paper received ※ 24 September 2019       paper accepted ※ 11 October 2019       issue date ※ 30 August 2020  
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FRAPP03 Status of the CSNS Accelerator Control System controls, linac, EPICS, timing 1662
 
  • Y.L. Zhang, C.P. Chu, W. Gao, F.Q. Guo, Y.C. He, D.P. Jin, M.T. Kang, G. Li, X. Wu, P. Zhu
    IHEP, Beijing, People’s Republic of China
  • L. Wang
    IHEP CSNS, Guangdong Province, People’s Republic of China
  
  The China Spallation Neutron Source (CSNS) accelerator consists of an 80 MeV H− linac, a 1.6 GeV Rapid Cycling Synchrotron (RCS) and two beam transport lines. The designed proton beam power is 100 kW in Phase-I. EPICS(Experimental Physics and Industrial Control System) is chosen as the software platform for the accelerator control system. The accelerator control system mainly consists of 21 sub-systems. VME64x based system with real-time embedded controllers is chosen for the timing system and fast protection system. PLCs and some embedded industrial computers are used for the device level controls. CSS (Control System Studio) and RDB based techniques are adopted for high level applications. The overall control system has been completed in 2018 and transitioned to routine operations in September of the same year. The design and the operation status of the overall accelerator control system are introduced in this paper.  
slides icon Slides FRAPP03 [9.395 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2019-FRAPP03  
About • paper received ※ 28 September 2019       paper accepted ※ 09 October 2019       issue date ※ 30 August 2020  
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