7.3 Ring Topology
In a ring topology network, the controller connects to the first Profinet Module, via a network switch. The
second Ethernet port of the Profinet Module connects to another module, which in turn connects to
another module until all devices are connected. The final module connects back to the switch.
Figure 7-3 Ring network topology
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A
NOTE
The network switch must support loss of line detection.
7.4 Combined Topologies
A single network can include both star and line components.
Figure 7-4 Combined star/line network topology
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Profinet Module: User Guide
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Issue: B
