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openSAFETY over PROFINET

PROFINET technology was developed with key contributions from Siemens and other members of the PROFIBUS user organization PNO. Its compound name stands for “process field network”. PROFINET is the Ethernet-based successor to Profibus DP. The communication system specifies the complete data transfer between I/O controllers, the parameterization, the diagnosis, and the implementation of a network. PROFINET is subdivided into performance classes for a scale of timing requirements: PROFINET RT for no or soft real time and PROFINET IRT for hard real time.