The Profibus Group Profibus is described by Profibus UK as the world market leader in fieldbus technology. For many years, Profibus development has continued with undiminished enthusiasm and energy. Current ongoing Profibus activities are targeted at system integration, Profibus engineering development and application profiles. Because of these application profiles, Profibus today is claimed to be the only fieldbus that provides robust engineering solutions for both factory and process automation. The trend today in automation technology is towards modular, reconfigurable machines and plants that are built around distributed intelligence. Profinet provides this new and comprehensive automation concept.