The ItemDef object was created in a previous Write, Read or Add call. This method overload is a bit more efficient because no ItemID search as to be done. Only in a SyncIOGroup with many items it could be a significant performance gain.
A synchronous OpcGroup write call is executed.
Visual Basic (Declaration) | |
---|---|
Public Overloads Overridable Function Write( _ ByVal idef As ItemDef, _ ByVal val As Object _ ) As Integer |
Parameters
- idef
- IN: Item definition object
- val
- IN: value to write