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The Fourth Industrial Revolution is a common buzzword these days. Even though it is somewhat artificial and marketing -inspired, it correctly reflects that the evolution of automation happened in waves driven by technological advances and inventions such as the steam engine, assembly line production, and the introduction of computers and the Internet. A less obvious driver of automation is the separation of power from information, which marked the step from individually crafting workpieces to more efficient, labor-saving series production. With the availability of computers, collecting and processing information in automation systems became the predominant challenge. At the same time, the technology push also provided the basis for making automation systems more complex in many different respects, such as plant size, number of devices and data points, device interaction, real-time and security requirements …