This OPC UA Interface is used to translate a priority label like PriorityLabel (defined in Part 14) to a concrete network priority value (e.g. DSCP or PCP).

Note: This UA Interface is typically used to form a mapping rule table containing a set of object entities implementing the IPriorityMappingEntryType. Each network interface supporting priority mapping may reference such a mapping table Object.

Table 17– IPriorityMappingEntryType definition

Attribute

Value

BrowseName

IPriorityMappingEntryType

IsAbstract

True

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

Subtype of the BaseInterfaceTypedefined in OPC 10000-5

HasComponent

Variable

MappingUri

String

BaseDataVariableType

Mandatory

HasComponent

Variable

PriorityLabel

String

BaseDataVariableType

Mandatory

HasComponent

Variable

PriorityValue_PCP

Byte

BaseDataVariableType

Optional

HasComponent

Variable

PriorityValue_DSCP

UInt32

BaseDataVariableType

Optional

Conformance Units

BNM Priority Mapping

MappingUri of DataType Stringspecifies a named identifier of a well-known predefined set of priority labels.

PriorityLabelof DataType Stringis a textual representation of the desired transport priority configured within the QoS settings of a communication relation, e.g. WriterGroup defined in Part14.

PriorityValue_PCPof DataType Byteis the Ethernet transport priority inside the VLAN-Tag associated with the PriorityLabel. The devices shall translate the defined priority label for each packet according to the communication relation (e.g. WriterGroup) and linked interface. Depending on the transport protocol mapping and if this Variableis supported, the PCP field inside a packet shall be set to the specified PCP value.

PriorityValue_DSCPof DataType UInt32is the IP transport priority associated with the PriorityLabel. The devices shall translate the defined priority label for each packet according to the communication relation (e.g. WriterGroup) and linked interface. Depending on the transport protocol mapping and if this Variableis supported, the DSCP field inside a packet shall be set to the specified DSCP value.