Author: Booth, W.
Paper Title Page
MODPL02 Virtual Control Commissioning for a Large Critical Ventilation System: The CMS Cavern Use Case 92
 
  • W. Booth, E. Blanco Viñuela, B. Bradu, S. Sourisseau
    CERN, Geneva, Switzerland
 
  The current cavern ventilation control system of the CMS experiment at CERN is based on components which are already obsolete: the SCADA system, or close to the end of life: the PLCs. The control system is going to be upgraded during the CERN Long Shutdown 2 (2019-2020) and will be based on the CERN industrial control standard: UNICOS employing WinCC OA as SCADA and Schneider PLCs. Due to the critical nature of the CMS ventilation installation and the short allowed downtime, the approach was to design an environment based on the virtual commissioning of the new control. This solution uses a first principles model of the ventilation system to simulate the real process. The model was developed with the modelling and simulation software EcosimPro. In addition, the current control application of the cavern ventilation will also be re-engineered as it is not completely satisfactory in some transients where many sequences are performed manually and some pressure fluctuations observed could potentially cause issues to the CMS detector. The plant model will also be used to validate new regulation schemes and transient sequences offline in order to ensure a smooth operation in production.  
video icon Talk as video stream: https://youtu.be/NVzClA1dSxc  
slides icon Slides MODPL02 [3.318 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-MODPL02  
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THPHA016 The UNICOS-CPC Vacuum Controls Package 1370
 
  • S. Blanchard, M. Bes, E. Blanco Viñuela, W. Booth, B. Bradu, R. Ferreira, P. Gomes, A. Gutierrez, A.P. Rocha, T.H. van Winden
    CERN, Geneva, Switzerland
  • L. Kopylov
    IHEP, Moscow Region, Russia
 
  The vacuum control of the Large Hadron Collider and its injectors is based on PLC and SCADA off-the-shelf components. Since late '90s, CERN's vacuum group has developed a dedicated control framework to drive, monitor and log the more than 10 000 vacuum instruments. Also, in 1998, CERN's industrial controls group developed the UNICOS framework (UNified Industrial Control System), becoming a de facto standard of industrial control systems and gradually deployed in different domains at CERN (e.g. Cryogenics, HVAC…). After an initial prototype applying the UNICOS-CPC (Continuous Process Control) framework to the controls of some vacuum installations, both teams have been working on the development of vacuum-specific objects and their integration, together with new features, into the UNICOS framework. Such convergence will allow this generic framework to better fit the vacuum systems, while offering the advantages of using a widespread and well-supported framework. This paper reports on the experience acquired in the development and deployment of vacuum specific objects in running installations, as a prototype for the vacuum controls convergence with UNICOS.  
poster icon Poster THPHA016 [1.062 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-ICALEPCS2017-THPHA016  
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