System and method for parallel transmission of critical data in real time and non-critical data in real time via switchable data networks, particularly Ethernet.

摘要

Method for transmitting data via a data network in which critical data in real-time and non-critical real-time data is transmitted, also the data network is constructed between at least two users, especially a transmitter and a receiver, further data are transmitted in at least one transmission cycle (12) with adjustable period (17), each transmission cycle (12) is subdivided into at least a first zone (13) transmission of critical data in real time and at least a second zone (14) for transmitting non-critical real-time data, wherein the data network is an Ethernet data network switchable in the area of ​​industrial plants in which each user is allotted one switching unit, scheduled transmission and / or reception and / or retransmission of data transmitted, because all units coupling the switched data network exhibit a bas and temporal common synchronous, thanks to the time synchronization, and because, for real-time control of all messages critical data to be transmitted in real time, all units coupled respectively involved are listed before the start of the performing respective transmission data, all times for forwarding messages critical real-time data, as well as routes respectively corresponding union, through which messages are transmitted critical data in real time.