Communication network with multiple network components

Abstract

The invention relates to a communication network (20, 30) having a plurality of network elements (21a-1, 31a-1) connected to each other for exchanging data messages, wherein the communication network (20, 30) has A first subnetwork (22a, 32a) and a second subnetwork (22b, 32b), and each network element (21a-l, 31a-l) is connected to two subnetworks (22a-b, 32a-b). In order to construct such a communication network (20, 30) as interference-proof as possible with little equipment outlay, it is provided that the communication network (20, 30) comprises at least some network components (21a-1) connected to each other in the form of a chain , 31a-l), wherein each chain (24a-d, 34a-d) of network elements (21a-l, 31a-l) has a first network element directly connected to the first subnetwork (22a, 32a) (eg 21a, 31a) and has a second network element (eg 21c, 31c) directly connected to the second subnetwork (22b, 32b). The invention also relates to a corresponding network component (21a-l, 31a-l) for operation in a communication network (20, 30) and for the interference-free transmission of datagrams in a communication network (20, 30) text method.

Description

technical field [0001] The invention relates to a communication network having a plurality of network elements interconnected for exchanging data telegrams, wherein the communication network has a first subnetwork and a second subnetwork, and each network element is connected to the two subnetworks connect. The invention also relates to a network component for operation in such a communication network and a method for the interference-resistant transmission of data telegrams in such a communication network. Background technique [0002] Network components, ie networkable devices which can be connected to a communication network and exchange data via the communication network by transmitting corresponding data telegrams, are currently used in many technical fields, for example in the automation of installations. In the following, not only networkable terminal devices, but also such devices for controlling and managing the transmission of data telegrams in a communication net...

AI Technical Summary

Problems solved by technology

[0009] Compared to the PRP standard, a communication network constructed according to the HSR standard is handled with a smaller number of cables and switches, however, it requires a relatively high administrative overhead for the control of the communication from the connected network elements, especially since it has to be Carry out the identification and elimination of data packets circulating in the ring communication network (Loop Prevention)

Therefore, the available network components are relatively expensive

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