SFA-5000 • SFA-10000 EtherCAT
6.1.2 ISO/OSI Layer model
* “Empty” means that the layer behaviour exists, but it is not shown explicitly.
6.1.3 Topology
Several topologies of connection are supported by EtherCAT networks: line, tree,
daisy-chain, star, …). EtherCAT networks can be configured in almost any
topology in the same structure. The maximum length of the cable between two
Slaves is 100 m (328 ft); standard EtherCAT cables commercially available can be
used.
The choice of the topology depends on the structural characteristics of the plant
and it is made in order to reduce the complexity and time for cabling.
Inside an EtherCAT network up to 65,535 devices can be connected.
Some topology examples are shown in the Figures below:
LINE topology:
MAN SFA_5000_10000_EC E 1.0.odt
6 - EtherCAT® interface
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