Author: Karlovsek, P.
Paper Title Page
MOBL02 Real-Time Framework for ITER Control Systems 45
  • W.R. Lee, B. Bauvir, T.H. Tak, A. Žagar
    ITER Organization, St. Paul lez Durance, France
  • P. Karlovsek, M. Knap
    COSYLAB, Control System Laboratory, Ljubljana, Slovenia
  • S. Lee
    KFE, Daejeon, Republic of Korea
  • D.R. Makowski, P. Perek
    TUL-DMCS, Łódź, Poland
  • A. Winter
    MPI/IPP, Garching, Germany
  The ITER Real-Time Framework (RTF) is a middleware providing common services and capabilities to build real-time control applications in ITER such as the Plasma Control System (PCS) and plasma diagnostics. The RTF dynamically constructs applications at runtime from the configuration. The principal building blocks that compose an application process are called Function Blocks (FB), which follow a modular structure pattern. The application configuration defines the information that can influence control behavior, such as the connections among FBs, their corresponding parameters, and event handlers. The consecutive pipeline process in a busy-waiting mode and a data-driven pattern minimizes jitter and hardens the deterministic system behavior. In contrast, infrastructural capabilities are managed differently in the service layer using non-real-time threads. The deployment configuration covers the final placement of a program instance and thread allocation to the appropriate computing infrastructure. In this paper, we will introduce the architecture and design patterns of the framework as well as the real-life examples used to benchmark the RTF.  
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About • Received ※ 10 October 2021       Accepted ※ 11 November 2021       Issue date ※ 24 January 2022  
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