Overload List
| Overload | Description |
|---|---|
| BeginHistoryReadModified(IList<HistoryReadValueId>,ReadRawModifiedDetails,AsyncCallback,Object) | Reads the history of modified variable values asynchronously from the OPC server. |
| BeginHistoryReadModified(IList<HistoryReadValueId>,ReadRawModifiedDetails,TimestampsToReturn,RequestSettings,AsyncCallback,Object) | Reads the history of modified variable values asynchronously from the OPC server. |
Requirements
Target Platforms: Windows 7/8/10, Windows Server 2003/2008/2012/2015, .NET4.x