.NET Based OPC UA Client/Server SDK  3.1.0.500
UnifiedAutomation.UaServer.SemanticChangeEventModel Class Reference

Event that indicates a change of the AddressSpace semantics. More...

Inherits UnifiedAutomation.UaServer.BaseEventModel.

Public Member Functions

 SemanticChangeEventModel ()
 Initializes a new instance of the SemanticChangeEventModel class. More...
 
 SemanticChangeEventModel (SemanticChangeEventModel template)
 Initializes a new instance of the SemanticChangeEventModel class. More...
 
override void UpdateEvent (GenericEvent e)
 Updates the event. More...
 
- Public Member Functions inherited from UnifiedAutomation.UaServer.BaseEventModel
 BaseEventModel ()
 Initializes a new instance of the BaseEventModel class. More...
 
 BaseEventModel (BaseEventModel template)
 Initializes a new instance of the BaseEventModel class. More...
 
void NewId ()
 Assigns a new EventId, Time and ReceiveTime to the event. More...
 
virtual GenericEvent CreateEvent (FilterManager manager)
 Creates the event. More...
 
virtual GenericEvent CreateEvent (FilterManager manager, bool autoGenerateEventIdAndTime)
 Creates the event. More...
 
- Public Member Functions inherited from UnifiedAutomation.UaServer.ModelControllerBase
virtual ModelHandle GetModelHandle (StringTable namespaceUris, object instance)
 Gets the metadata handle. More...
 
virtual DataValue GetValue (IMapperContext context, ModelMapping mapping)
 Gets the value associated with the mapping. More...
 
virtual bool SetValue (IMapperContext context, ModelMapping mapping, DataValue value)
 Sets the value associated with the mapping. More...
 

Properties

SemanticChangeStructureDataType[] Changes [get, set]
 Reflects the changes that issued the SemanticChangeEvent. More...
 
- Properties inherited from UnifiedAutomation.UaServer.BaseEventModel
NodeId NodeId [get, set]
 The node identifier for a representation of an event in the Server address space. Used mainly for ConditionIds. More...
 
byte[] EventId [get, set]
 Generated by the server to uniquely identify a particular Event Notification. More...
 
NodeId EventType [get, set]
 Describes the specific type of Event. More...
 
NodeId SourceNode [get, set]
 Identifies the Node that the Event originated from. More...
 
string SourceName [get, set]
 Provides a description of the source of the Event. More...
 
DateTime Time [get, set]
 Provides the time the Event occurred. More...
 
DateTime ReceiveTime [get, set]
 Provides the time the OPC UA Server received the Event from the underlying device of another Server. More...
 
TimeZoneDataType LocalTime [get, set]
 Contains the Offset and the DaylightSavingInOffset flag. More...
 
LocalizedText Message [get, set]
 Provides a human-readable and localizable text description of the Event. More...
 
ushort Severity [get, set]
 An indication of the urgency of the Event. More...
 
INodeAccessInfo NodeAccessInfo [get, set]
 Using a NodeAccessInfo can restrict the access of an event to single scopes. More...
 
- Properties inherited from UnifiedAutomation.UaServer.ModelControllerBase
ModelHandle ModelHandle [get, set]
 Gets or sets the metadata handle. More...
 
object UserData [get, set]
 Gets or sets the user data. More...
 

Detailed Description

Event that indicates a change of the AddressSpace semantics.

The change consists of a change to the Value Attribute of a Property.

The SemanticChangeEvent contains information about the Node owning the Property that was changed. If this is a Variable or object, the TypeDefinitionNode is also present.

The SemanticChange bit of the AccessLevel Attribute of a Property indicates whether changes of the Property value are considered for SemanticChangeEvents

The ViewVersion and NodeVersion Properties do not change due to the publication of a SemanticChangeEvent. There is no standard way to identify which Nodes trigger a SemanticChangeEvent and which Nodes do not.

SemanticChangeEvents are handled in the context of a View the same way as ModelChangeEvents.

SemanticChangeEvents can be compressed the same way as ModelChangeEvents.

This EventType inherits all Properties of the BaseEventType. There are no additional Properties defined for this EventType. The SourceNode for Events of this type should be the Node of the View that gives the context of the changes. If the whole AddressSpace is the context, the SourceNode is set to the NodeId of the Server object. The SourceName for Events of this type should be the String part of the BrowseName of the View, for the whole AddressSpace it should be “Server”.

Constructor & Destructor Documentation

UnifiedAutomation.UaServer.SemanticChangeEventModel.SemanticChangeEventModel ( )
inline

Initializes a new instance of the SemanticChangeEventModel class.

UnifiedAutomation.UaServer.SemanticChangeEventModel.SemanticChangeEventModel ( SemanticChangeEventModel  template)
inline

Initializes a new instance of the SemanticChangeEventModel class.

Parameters
templateThe template.

Member Function Documentation

override void UnifiedAutomation.UaServer.SemanticChangeEventModel.UpdateEvent ( GenericEvent  e)
inlinevirtual

Updates the event.

Parameters
eThe event to update.

Reimplemented from UnifiedAutomation.UaServer.BaseEventModel.

Property Documentation

SemanticChangeStructureDataType [] UnifiedAutomation.UaServer.SemanticChangeEventModel.Changes
getset

Reflects the changes that issued the SemanticChangeEvent.


The documentation for this class was generated from the following file: