Cables for data transmission in industrial automation - LEONI
Cables for data transmission in industrial automation - LEONI
Cables for data transmission in industrial automation - LEONI
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www.leoni-<strong>in</strong>dustrial-projects.com Fieldbus technology 5Fieldbus technologyLevels of the hierarchyDigital communication and <strong>data</strong> transfer with<strong>in</strong> a productionstructure takes place horizontally, i.e. between devices on onelevel, and vertically, to the systems on the other levels of thehierarchy.The follow<strong>in</strong>g levels are usually dist<strong>in</strong>guished <strong>in</strong> <strong>automation</strong>systems:Control levelThis level controls and monitors higher functions with bus cycle times of
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