Author: Timm, J.H.K.
Paper Title Page
WEPAB293 The Trip Event Logger for Online Fault Diagnosis at the European XFEL 3344
 
  • J.H.K. Timm, J. Branlard, A. Eichler, H. Schlarb
    DESY, Hamburg, Germany
 
  The low-level RF (LLRF) system at the European XFEL, DESY, is of major importance for a high-performant and reliable operation. Faults here can jeopardize the overall operation. Therefore, the trip event logger is currently developped, - a fault diagnosis tool to detect errors online, inform the operators and trigger automatic supervisory actions. Further goals are to provide information for a fault tree and event tree analysis as well as a database of labeled faulty data sets for offline analysis. The tool is based on the C++ framework ChimeraTK Application Core. With this close interconnection to the control system it is possible not only to monitor but also to intervene as it is of great importance for supervisory tasks. The core of the tool consists of fault analysis modules ranging from simple ones (e.g., limit checking) to advanced ones (model-based, machine learning, etc.). Within this paper the architecture and the implementation of the trip event logger are presented.  
poster icon Poster WEPAB293 [7.919 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB293  
About • paper received ※ 19 May 2021       paper accepted ※ 02 July 2021       issue date ※ 10 August 2021  
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THPAB287 Providing Computing Power for High Level Controllers in MicroTCA-based LLRF Systems via PCI Express Extension 4363
 
  • P. Nonn, A. Eichler, S. Pfeiffer, H. Schlarb, J.H.K. Timm
    DESY, Hamburg, Germany
 
  It is possible to connect the PCIe bus of a high performance computer to a MicroTCA crate. This allows the software on the computer to communicate with the modules in the crate, as if they were peripherals of the computer. This article will discuss the use of this feature in respect to accelerator control with a focus on High Level Controllers.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB287  
About • paper received ※ 19 May 2021       paper accepted ※ 26 July 2021       issue date ※ 16 August 2021  
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