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Fieldbus systems are more and more responsible for functions affecting people's health. Therefore they are supposed to work safely, i.e. the fieldbus system must be free from unacceptable risk. Thus different measures specified in the international standard IEC 61508 have to be taken to reduce the risk, for example, a redundant hardware structure, add-ons(More)
Installing a power line communication infrastructure for energy management that allows collecting and deploying information down to the premises of customers requires an integrated security system. Otherwise the risk of malicious use of the network and the connected control facilities would imply a risk much too high. This article describes the security(More)
The organization of classes and assessment system on the Personal Computer Applications (PCA) course, in the professional study of electrical engineering at the Polytechnic of Zagreb, is based on the Moodle system. Moodle is widely used open source application designed for e-learning. This system enables students to prepare for lectures and exercises, while(More)
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