The ProtocolType ObjectType and its subtypes are used to specify a specific communication (e.g. FieldBus) protocol that is supported by a Device (respectively by its ConnectionPoint) or Network. The BrowseName of each instance of a ProtocolType shall define the Communication Profile (see Figure 18).

Figure 18 shows the ProtocolType including some specific types and instances that represent Communication Profiles of that type. It is formally defined in Table 36.

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Figure 18 – Example of a ProtocolType hierarchy with instancesthat represent specific communication profiles

Table 36 – ProtocolType definition

Attribute

Value

BrowseName

ProtocolType

IsAbstract

False

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

Subtype of the BaseObjectType defined in OPC 10000-5

Conformance Units

DI Network

DI Protocol