Subscribe to OPC item. Specify machine name, server class, item ID, and requested update rate. No state object is specified (suitable for simple scenarios only).
DISPID (Dispatch ID):
For more information, see SubscribeItem in .NET Reference.
DISPID (Dispatch ID):
For more information, see SubscribeItem in .NET Reference.
Visual Basic |
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Public Function SubscribeItem( _ ByVal machineName As String, _ ByVal serverClass As String, _ ByVal itemId As String, _ ByVal requestedUpdateRate As Long _ ) As Long |
See SubscribeItem in .NET Reference.
For remarks, see SubscribeItem in .NET Reference.
For examples, see SubscribeItem in .NET Reference.