UAFX Part 81: Connecting Devices and Information Model - 6.7.2 ConnectionManagerType definition

The ConnectionManagerType is formally defined in Table 77.

Table 77 – ConnectionManagerType definition

Attribute	Value
BrowseName	4:ConnectionManagerType
IsAbstract	False
References	NodeClass	BrowseName	DataType	TypeDefinition	Other
Subtype of the 0:BaseObjectType defined in OPC 10000-5
0:HasComponent	Object	4:ConnectionConfigurationSets		0:FolderType	M
0:HasComponent	Object	4:ConnectionManagerConfiguration		4:ConnectionManagerConfigurationType	O
0:HasComponent	Method	4:EditConnectionConfigurationSets	Defined in 6.7.4		O
0:HasComponent	Method	4:ProcessConnectionConfigurationSets	Defined in 6.7.5		O
0:HasComponent	Object	4:Capabilities		4:ConnectionManagerCapabilitiesType	O
0:HasComponent	Variable	4:AggregatedCurrentState	0:Boolean	0:BaseDataVariableType	O
0:HasComponent	Object	5:Diagnostics		5:FunctionalGroupType	O
0:HasComponent	Object	4:ConnectionManagerLog		0:LogObjectType	O

0:GeneratesEvent	ObjectType	4:CloseConnectionErrorEventType
0:GeneratesEvent	ObjectType	4:EstablishConnectionErrorEventType
ConformanceUnits
UAFX ConnectionManager Base

The components of the ConnectionManagerType have additional subcomponents, which are defined in Table 78.

Table 78 – ConnectionManagerType additional subcomponents

BrowsePath	References	Node Class	BrowseName	DataType	TypeDefinition	Others
5:Diagnostics	0:HasComponent	Variable	4:EstablishCallCount	0:UInt32	0:BaseDataVariableType	O
5:Diagnostics	0:HasComponent	Variable	4:EstablishCallFailedCount	0:UInt32	0:BaseDataVariableType	O
5:Diagnostics	0:HasComponent	Variable	4:CloseCallCount	0:UInt32	0:BaseDataVariableType	O
5:Diagnostics	0:HasComponent	Variable	4:CloseCallFailedCount	0:UInt32	0:BaseDataVariableType	O

ConnectionConfigurationSets provides a Folder for the ConnectionConfigurationSets (defined in 6.8) that are exposed by this ConnectionManager. It shall be restricted to holding only instances of ConnectionConfigurationSetType, which provide the data required by a ConnectionManager to establish Connections. This Folder may also contain other Folders that can be used to organise the ConnectionConfigurationSets. The Folder may be empty. The string part of the BrowseName of ConnectionConfigurationSets shall be unique within a ConnectionConfigurationSets Folder.

ConnectionManagerConfiguration provides standardised mechanisms for adding, removing, or replacing ConnectionConfigurationSets (see F.1).

ProcessConnectionConfigurationSets causes the ConnectionManager to manage Connections contained in one or more ConnectionConfigurationSets in a single Call (see 6.7.5). In addition, vendor-specific means may be used to trigger the processing of ConnectionConfigurationSets. All processing of ConnectionConfigurationSets shall follow the behaviour defined in 6.7.5.3.

AggregatedCurrentState shall be set to TRUE if one or more ConnectionConfigurationSets’ ConnectionConfigurationSetStateMachine is in State Error. This only indicates that the ConnectionManager encountered a problem in processing one or more of the ConnectionConfigurationSets; it does not indicate the status of the Connections.

ConnectionManagerLog exposes a LogObject for the ConnectionManager. The LogObject (see OPC 10000-26) can be accessed to obtain the log of activity related to the ConnectionManager. Standardised Events that can be used to trigger records for the LogObject are defined in 8.9 and 8.10. LogObject records can also be generated without the generation of an Event. If the LogObject is supported, the ConnectionManager shall generate records for all EstablishConnections calls, CloseConnections calls, and any related calls (see 13), including reporting of all errors. The reporting of all errors might result in multiple log records for a single call. For example, if there are multiple verification errors (e.g. Asset verification or FunctionalEntity verification), all would be logged. To facilitate tracking of LogRecords between the ConnectionManager and an AutomationComponent, the ConnectionManager shall provide the SpanContextDataType as part of the EstablishConnection Method Call to each AutomationComponent, as defined in OPC 10000-26.

EstablishCallCount diagnostics counter provides a count of the number of EstablishConnections calls issued by the ConnectionManager. This applies to local and remote calls.

EstablishCallFailedCount diagnostics counter provides a count of the number of EstablishConnections calls that failed (any command). This applies to local and remote calls.

CloseCallCount diagnostics counter provides a count of the number of CloseConnections calls issued by the ConnectionManager. This applies to local and remote calls.

CloseCallFailedCount diagnostics counter provides a count of the number of CloseConnections calls issued by the ConnectionManage that failed. This applies to local and remote calls.