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.NET Based OPC UA Client/Server SDK
3.1.0.500
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.NET Based OPC UA Client/Server SDK
3.1.0.500
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Used as the type for the DataTypeDescriptions. More...
Inherits UnifiedAutomation.UaServer.BaseDataVariableModel.
Public Member Functions | |
| DataTypeDescriptionModel () | |
| Initializes a new instance of the DataTypeDescriptionModel class. More... | |
| DataTypeDescriptionModel (DataTypeDescriptionModel template) | |
| Initializes a new instance of the DataTypeDescriptionModel class. More... | |
 Public Member Functions inherited from UnifiedAutomation.UaServer.BaseDataVariableModel | |
| BaseDataVariableModel () | |
| Initializes a new instance of the BaseDataVariableModel class. More... | |
| BaseDataVariableModel (BaseDataVariableModel template) | |
| Initializes a new instance of the BaseDataVariableModel class. More... | |
| Public Member Functions inherited from UnifiedAutomation.UaServer.BaseVariableModel | |
| BaseVariableModel () | |
| Initializes a new instance of the BaseVariableModel class. More... | |
| BaseVariableModel (BaseVariableModel template) | |
| Initializes a new instance of the BaseVariableModel class. 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 | |
| new string | Value [get, set] |
| Gets or sets the value. More... | |
| string | DataTypeVersion [get, set] |
| DataTypeVersion indicates whether the type description of the DataType has changed. More... | |
| byte[] | DictionaryFragment [get, set] |
| A ByteString that contains a subset of the DataTypeDictionary which describes the format of the DataType associated with the DataTypeDescription. More... | |
| Properties inherited from UnifiedAutomation.UaServer.BaseVariableModel | |
| object | Value [get, set] |
| Gets or sets the value. 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... | |
Used as the type for the DataTypeDescriptions.
There are no References specified for this VariableType. It defines the optional properties DataTypeVersion and DictionaryFragment.
DataTypeVersion indicates whether the type description of the DataType has changed. Changes to the DataTypeVersion may impact the operation of Subscriptions. If the DataTypeVersion changes for a Variable that is being monitored for a Subscription and that uses this DataTypeDescription, then the next data change Notification sent for the Variable will contain a status that indicates the change in the DataTypeDescription.
In some scenarios an OPC UA Server may have resource limitations which make it impractical to expose large DataTypeDictionaries. In these scenarios the Server may be able to provide access to descriptions for individual DataTypes even if the entire dictionary cannot be read. For this reason, this standard defines a Property for the DataTypeDescription called DictionaryFragment. This Property is a ByteString that contains a subset of the DataTypeDictionary which describes the format of the DataType associated with the DataTypeDescription. Thus, the Server splits the large DataTypeDictionary into several small parts and Clients can access without affecting the overall system performance.
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inline |
Initializes a new instance of the DataTypeDescriptionModel class.
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inline |
Initializes a new instance of the DataTypeDescriptionModel class.
| template | The template. |
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getset |
DataTypeVersion indicates whether the type description of the DataType has changed.
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getset |
A ByteString that contains a subset of the DataTypeDictionary which describes the format of the DataType associated with the DataTypeDescription.
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getset |
Gets or sets the value.