MathWorks Simulink and C++ integration with the new VLT PLC-based standard development platform for instrument control systems

Mario J. Kiekebusch; Nicola Di Lieto; Stefan Sandrock; Dan Popovic; Gianluca Chiozzi

doi:10.1117/12.2056381

18 July 2014 MathWorks Simulink and C++ integration with the new VLT PLC-based standard development platform for instrument control systems

Mario J. Kiekebusch, Nicola Di Lieto, Stefan Sandrock, Dan Popovic, Gianluca Chiozzi

Author Affiliations +

Proceedings Volume 9152, Software and Cyberinfrastructure for Astronomy III; 91522B (2014) https://doi.org/10.1117/12.2056381
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

ESO is in the process of implementing a new development platform, based on PLCs, for upcoming VLT control systems (new instruments and refurbishing of existing systems to manage obsolescence issues). In this context, we have evaluated the integration and reuse of existing C++ libraries and Simulink models into the real-time environment of BECKHOFF Embedded PCs using the capabilities of the latest version of TwinCAT software and MathWorks Embedded Coder. While doing so the aim was to minimize the impact of the new platform by adopting fully tested solutions implemented in C++. This allows us to reuse the in house expertise, as well as extending the normal capabilities of the traditional PLC programming environments. We present the progress of this work and its application in two concrete cases: 1) field rotation compensation for instrument tracking devices like derotators, 2) the ESO standard axis controller (ESTAC), a generic model-based controller implemented in Simulink and used for the control of telescope main axes.

Citation Download Citation

Mario J. Kiekebusch, Nicola Di Lieto, Stefan Sandrock, Dan Popovic, and Gianluca Chiozzi "MathWorks Simulink and C++ integration with the new VLT PLC-based standard development platform for instrument control systems", Proc. SPIE 9152, Software and Cyberinfrastructure for Astronomy III, 91522B (18 July 2014); https://doi.org/10.1117/12.2056381

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