Selects the data source for OPC reads (from device, from OPC cache, or dynamically determined).
UUID: b0e1f79b-7601-44b3-8013-9398e4151091
For more information, see DADataSource in .NET Reference.
UUID: b0e1f79b-7601-44b3-8013-9398e4151091
For more information, see DADataSource in .NET Reference.
| Member | Value | Description |
|---|---|---|
| DADataSource_ByValueAge | 0 | The data source (memory, OPC cache or OPC device) selection will be based on the desired value age and current status of data received from the server. |
| DADataSource_Cache | 1 | OPC reads will be fulfilled from the cache in the OPC server. |
| DADataSource_Device | 2 | OPC reads will be fulfilled from the device by the OPC server. |
For remarks, see DADataSource in .NET Reference.
For examples, see DADataSource in .NET Reference.