Clause 5 introduces References, the ProtocolType, and basic TopologyElementTypes needed to create a communication topology. The types for this model are illustrated in Figure 16.


Figure 16 – Device communication model overview

A ProtocolType ObjectType represents a specific communication protocol (e.g., FieldBus) implemented by a certain TopologyElement. Examples are shown in Figure 18.

The ConnectionPointType represents the logical interface of a Device to a Network.

A Network is the logical representation of wired and wireless technologies.

Figure 17 provides an overall example.


Figure 17 – Example of a communication topology