Method for synchronous control of at least one subordinate network participant by one superordinate control unit through an asynchronous network segment

摘要

The method involves outputting control data i.e. individual messages (T1-T4), for a subordinate network subscriber (20-50) by a master control unit (10) i.e. electrical control unit. The control data is transmitted to a temporary storage unit via an asynchronously operating network segment (101) and temporarily stored. The control data read from the storage unit is transmitted to the subordinate network subscriber via a synchronous network segment (201) operating with a transmission clock pulse. The clock pulse is changed based on amount of the data temporarily stored in the storage unit. An independent claim is also included for an automation network.