Method of operating a network
A method is proposed for operating a network with multiple subscribers in the network. For this purpose, a network having at least one switch ( 20, 21 ), at least two terminals ( 10, 11, 12 ) and a controller ( 30 ) is provided. According to the invention, one of the subscribers now sends and/or receives data to another subscriber via an application protocol, with the data being sent and/or received as a TSN data stream. In order to integrate non-TSN-capable nodes in the network, it is proposed that the TSN data stream be divided into at least two partial data streams ( 1, 2, 3, 4 ). Such partial data streams ( 1, 2, 3, 4 ) can be configured across non-TSN-capable subscribers or between such subscribers.
1 . A method of integrating a non time-sensitive network (TSN)-capable node into a network, the network comprising multiple subscribers comprising at least two terminals and a controller, the method comprising the steps of:
one of the subscribers sending data to and/or receiving data from another of the subscribers via an application protocol,
sending or receiving the data as a TSN data stream, and
dividing the TSN data stream into at least two partial data streams,
wherein sending or receiving the data as the TSN data stream comprises:
sending a first of the at least two partial data streams from the controller of the network to a first of the at least two terminals of the network via the non TSN-capable node; and
sending a second of the at least two partial streams from the first of the at least two terminals of the network to a second of the at least two terminals of the network via the non TSN-capable node,
wherein the non TSN-capable node is a switch.
2 . The method according to claim 1 ,
wherein the partial data streams are dependent on a preceding partial data stream in a stream direction.
3 . The method according to claim 1 ,
wherein the partial data streams are dependent on an upstream subscriber in a stream direction.
4 . The method according to claim 1 ,
wherein the partial data streams also include TSN data streams.
5 . The method according to claim 1
wherein the subscribers are connected to the switches in ring or line topology.
6 . The method according to claim 1 ,
wherein a plurality of the terminals are connected in series.
7 . The method according to claim 1 ,
wherein the data streams and partial data streams are divided into data packets and are sent and received within the data link layer.
8 . The method according to claim 1 ,
wherein the switch is a router or a server.
9 . The method according to claim 1 ,
wherein a plurality of controllers are present as subscribers in the network.
10 . The method according to claim 1 ,
wherein the controller and the terminals are parts of an automation bus.
11 . The method according to claim 1 , further comprising the step of:
configuring the controller and/or the switch by a network management.