Author: Smareglia, R.
Paper Title Page
MOD3O06 Interface Management for SKA Telescope Manager 1
  • P.S. Swart, G.M. le Roux
    SKA South Africa, National Research Foundation of South Africa, Cape Town, South Africa
  • A. Marassi, R. Smareglia
    INAF-OAT, Trieste, Italy
  • S. Roy Chaudhuri
    Tata Research Development and Design Centre, Pune, India
  • S. Vrcic
    NRC-Herzberg, Penticton, BC, Canada
  The Square Kilometre Array (SKA) project is currently in the Pre-construction Phase. During this phase, the telescope subsystems are being designed. The Telescope Manager (TM) is a supervisory control and monitoring subsystem in each of the two radio telescopes of the SKA (SKA1-Low and SKA1-Mid). The TM interfaces with a number of diverse telescope subsystems. Interaction between TM and these subsystems is a major source of requirements for the TM. Careful management of TM external interfaces is therefore important. This discussion is a case study of TM interface management. Firstly, how system architectural design aspects like separation of concerns in the control hierarchy reduce telescope complexity with regards to interfaces is discussed. Secondly, the standardisation approach for monitoring and control interfaces to facilitate early elicitation of interface requirements for the TM, and to manage the diversity of interfacing subsystems is discussed. Thirdly, the relations between interface definition and requirements analysis activities, using SysML representations as an example is discussed.
slides icon Slides MOD3O06 [2.607 MB]  
WEA3O01 The TANGO Controls Collaboration in 2015 1
  • A. Götz, J.M. Chaize, T.M. Coutinho, J.L. Pons, E.T. Taurel, P.V. Verdier
    ESRF, Grenoble, France
  • G. Abeillé
    SOLEIL, Gif-sur-Yvette, France
  • S. Brockhauser, L.J. Fulop
    ELI-ALPS, Szeged, Hungary
  • M.O. Cernaianu
    IFIN-HH, Bucharest - Magurele, Romania
  • I.A. Khokhriakov
    HZG, Geesthacht, Germany
  • R. Smareglia
    INAF-OAT, Trieste, Italy
  • A. Vazquez-Ortero
    ELI-BEAMS, Prague, Czech Republic
  This paper presents the latest news from the TANGO collaboration. TANGO is being used in new domains. The three ELI pillars - ELI-Beamlines, ELI-ALPS and ELI-NP in Czech Republic, Hungary and Romania respectively have selected TANGO for many of their control systems. In ELI-Beamlines and ELI-Alps, TANGO will play the role of integrating all the hardware and turn-key systems (some delivered with EPICS or Labview) into one integrated system. In ELI-NP, the HPLS and LBTS will be controlled using TANGO, while the GBS will be controlled using EPICS. On the experimental side, ELI-NP will use both TANGO and EPICS control systems. TANGO will be extended with new features required by the laser community. These features will include nanosecond time-stamping. The latest major release of TANGO V9 includes the following features - data pipes, enumerated types, dynamic commands and forwarded attributes. The collaboration has been extended to include the new members and to provide a sustainable source of resources through collaboration contracts. A new website ( has been designed which improves the communication within the community.  
slides icon Slides WEA3O01 [2.339 MB]  
WEPGF097 Local Monitoring and Control System for the SKA Telescope Manager: A Knowledge-Based System Approach for Issues Identification Within a Logging Service 1
  • M. Di Carlo, M. Dolci
    INAF - OA Teramo, Teramo, Italy
  • R. Smareglia
    INAF-OAT, Trieste, Italy
  • P.S. Swart, G.M. le Roux
    SKA South Africa, National Research Foundation of South Africa, Cape Town, South Africa
  The SKA Telescope Manager (SKA. TM) is a distributed software application aimed to control the operation of thousands of radio telescopes, antennas and auxiliary systems (e.g. infrastructures, signal processors, …) which will compose the Square Kilometre Array, the world's largest radio astronomy facility currently under development. SKA. TM, as an "element" of the SKA, is composed in turn by a set of sub-elements whose tight coordination is ensured by a specific sub-element called "Local Monitoring and Control" (TM.LMC). TM.LMC is mainly focussed on the life cycle management of TM, the acquisition of every network-related information useful to understand how TM is performing and the logging library for both online and offline sub-elements. Given the high complexity of the system, identifying the origin of an issue, as soon as a problem occurs, appears to be a hard task. To allow a prompt diagnostics analysis by engineers, operators and software developers, a Knowledge-Based System (KBS) approach is proposed and described for the logging service.  
poster icon Poster WEPGF097 [7.144 MB]