Classes
| Class | Description | |
|---|---|---|
 | ComClientConfiguration | Stores the configuration the data access node manager. |
| ComClientConfigurationCollection | A collection of COM WrapperConfiguration objects. |
| ComClientNodeManager | A node manager for a server that exposes several variables. |
| ComHdaClient | Provides access to a COM DA hdaPlg. |
| ComHdaClientConfiguration | Stores the configuration the data access node manager. |
| ComHdaClientManager | Manages the DA COM connections used by the UA server. |
| ComItemIdParser | The default item id parser that uses the settings in the configuration. |
| HdaAttribute | Stores information about an HDA attribute. |
| HdaAttributeState | A object which maps a COM DA item to a UA variable. |
| HdaAttributeValue | Stores the value of an HDA attribute. |
| HdaElementBrowser | Browses the children of a segment. |
| HdaHistoryBaseRequest | Stores a read history request. |
| HdaHistoryReadAnnotationRequest | A request to read raw history data at specific times. |
| HdaHistoryReadAtTimeRequest | A request to read raw history data at specific times. |
| HdaHistoryReadAttributeRequest | A request to read raw history data at specific times. |
| HdaHistoryReadProcessedRequest | A request to read raw or modified history data. |
| HdaHistoryReadRawModifiedRequest | A request to read raw or modified history data. |
| HdaHistoryReadRequest | Stores a read history request. |
| HdaModelUtils | A class that builds NodeIds used by the DataAccess NodeManager |
| HdaParsedNodeId | Stores the elements of a NodeId after it is parsed. |
| HdaReadRequest | Stores the parameters and results for a COM DA read operation. |
| HdaReadRequestCollection | A collection of read requests. |
| HdaSubscribeAttributeRequest | Stores a request to subscribe to the attributes of an HDA item. |
| ParsedNodeId | Stores the elements of a NodeId after it is parsed. |
| ResultIds | Defines all well known COM DA HRESULT codes. |
Interfaces
| Interface | Description | |
|---|---|---|
 | IItemIdParser | An interface to an object that parses item ids. |
Structures
| Structure | Description | |
|---|---|---|
 | OPCHDA_TIME |
Delegates
Enumerations
| Enumeration | Description | |
|---|---|---|
 | HdaConstants.OPCHDAQuality | OPC defined item quality values |
| OPCHDA_AGGREGATE | |
| OPCHDA_SERVERSTATUS | |
| OPCHDA_UPDATECAPABILITIES |