| Overload | Description |
|---|---|
| ReadItem(IEasyDAClient,DAItemArguments,DAReadParameters) | Reads a named item from an OPC server. Value, quality and timestamp are returned. Reads a named item using an item arguments objects, and read parameters. |
| ReadItem(IEasyDAClient,DAReadItemArguments) | Reads a named item from an OPC server. Value, quality and timestamp are returned. Reads a named item using an object that holds all necessary arguments. |
| ReadItem(IEasyDAClient,ServerDescriptor,DAItemDescriptor) | Reads a named item from an OPC server. Value, quality and timestamp are returned. Reads a named item using descriptor objects for the OPC server and OPC-DA item. |
| ReadItem(IEasyDAClient,ServerDescriptor,DAItemDescriptor,DAReadParameters) | Reads a named item from an OPC server. Value, quality and timestamp are returned. Reads a named item using descriptor objects for the OPC server and OPC-DA item, and specifying read parameters such as the data source or value age. |
| ReadItem(IEasyDAClient,String,String,String,VarType) | Reads a named item from an OPC server. Value, quality and timestamp are returned. Reads a named item using individual parameters specifying its location, and a specific data type. |
| ReadItem(IEasyDAClient,String,String,String,VarType,Int32) | Reads a named item from an OPC server. Value, quality and timestamp are returned. Reads a named item using individual parameters specifying its location, a specific data type, and value age. |
| ReadItem(IEasyDAClient,String,String,String) | Reads a named item from an OPC server. Value, quality and timestamp are returned. Reads a named item using individual parameters specifying its location, and using server's canonical data type. |
QuickOPC User's Guide and Reference
ReadItem Method (IEasyDAClientExtension)