Author: Maire, G.
Paper Title Page
MOPPC056 The Detector Safety System of NA62 Experiment 222
 
  • G. Maire, A. Kehrli, S. Ravat
    CERN, Geneva, Switzerland
  • H. Coppier
    ESIEE, Amiens, France
 
  The aim of the NA62 experiment is the study of the rare decay K+→π+ν;ν- at the CERN SPS. The Detector Safety System (DSS) developed at CERN is responsible for assuring the protection of the experiment’s equipment. DSS requires a high degree of availability and reliability. It is composed of a Front-End and a Back-End part, the Front-End being based on a National Instruments cRIO system, to which the safety critical part is delegated. The cRIO Front-End is capable of running autonomously and of automatically taking predefined protective actions whenever required. It is supervised and configured by the standard CERN PVSS SCADA system. This DSS system can easily adapt to evolving requirements of the experiment during the construction, commissioning and exploitation phases. The NA62 DSS is being installed and has been partially commissioned during the NA62 Technical Run in autumn 2012, where components from almost all the detectors as well as the trigger and the data acquisition systems were successfully tested. The paper contains a detailed description of this innovative and performing solution, and demonstrates a good alternative to the LHC systems based on redundant PLCs.  
poster icon Poster MOPPC056 [0.613 MB]  
 
THPPC125 Evaluation and Implementation of Advanced Process Control with the compactRIO Material of National Instrument 1355
 
  • G. Maire, A. Kehrli, M. Pezzetti, S. Ravat
    CERN, Geneva, Switzerland
  • B. Charnier, H. Coppier
    ESIEE, Amiens, France
 
  Programmable Logic Controller (PLC) is very commonly used in many industries and research applications for process control. However a very complex process control may require algorithms and performances beyond the capability of PLCs, very high-speed or precision controls may also require other solutions. This paper describes recent research conducted to implement advanced process controls with the cRIO material from National Instruments (decoupling of MIMO process control, steady state feedback, observer, Kalman filter, etc…). The cRIO systems consist of an embedded real-time controller for communication and processing, a Reconfigurable Field Programmable Array (FPGA) and hot-swappable I/O modules. The paper presents experimental results and the ability of the cRIO to treat complex process control.  
poster icon Poster THPPC125 [1.004 MB]