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The paper deals with the methodology for assessing the production of solar photovoltaic power plant. Operational quality of a solar power is given to early detection of possible failures of individual components. This can be achieved only by constantly monitoring the status of the plant and their proper evaluation.It is described design of whole data acquisition system based on data mining and automatic detection of failures and follow-up evaluation of data.According to a number of newly installed plants, such as in the Czech Republic, it is a very topical issue. The proposed procedures are validated in operation and maintenance of solar power with the performance 350 kWp built in campus of VSB Technical University of Ostrava (also VSB-TUO).

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Paper shows direct connection and implementation way of designed control schemas of prepared applications to an industrial WinPLC/WinPAC. Described is a way to produce a permanent solution in control applications that are fully prepared, designed and implemented directly from MATLAB/Simulink to the target control platform. As a part, the mentioned solution is using a multiplatform control system REX as a bridge between MATLAB and target platforms. These methods allow minimizing costs of development of control of applications, because it produces target permanent realizations in comparison to classical development methods that usually need expensive real time measurement cards and produce only one purpose development solution.