A method of correcting a process date based on a time offset between a processing time and a clock time of a communication clock

摘要

The invention relates to a method for correcting a process datum on the basis of a time offset between a processing time and a clock time of a communication clock, wherein a network subscriber (20) transmits data to a user application subscriber (30) via a first network (1) synchronous with a first transmission clock (T1). and wherein a superordinate controller (10) is connected to the network subunit (20) in a data-transmitting manner via a second network (2) synchronous to a second transmission clock (T2), the user application subscriber (30) having a user application at a processing time (t) executing the process data as an input or output, wherein a corrected process date from the process data, a first time offset (dt1) between the processing time (t) and a clock time of the first transfer clock (T1) and a second time offset (dt2) between the Taktzeitp Unkt of the first transfer clock (T1) and a clock time of the second transfer clock (T2) is determined.