.NET Based OPC UA Client/Server SDK
3.0.5.474
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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... | |
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”.
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inline |
Initializes a new instance of the SemanticChangeEventModel class.
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inline |
Initializes a new instance of the SemanticChangeEventModel class.
template | The template. |
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inlinevirtual |
Updates the event.
e | The event to update. |
Reimplemented from UnifiedAutomation.UaServer.BaseEventModel.
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getset |
Reflects the changes that issued the SemanticChangeEvent.