It is a communication protocol to exchange data between controllers (i.e., PLCs, PACs, DCS) and devices (i.e., IO blocks, sensors, actuators). The following section expands on switches in PROFINET networks. PROFINET is based on standard unmodified Ethernet the network is not restricted to just PROFINET telegrams. PROFINET can coexist with other Ethernet-based protocols in the same network and share network infrastructure, such as switches and cabling. But are those switches able to handle PROFINET telegrams and other Ethernet traffic? They are commonly implemented in PROFINET configurations to deploy various topology options (i.e., tree, star, line, ring).
Switches are crucial components in industrial networks.
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