Opc data Access Automation Specification

4.5.4.7

 

SetActive  

Description 

Allows Activation and deactivation of individual OPCItem’s in the OPCItems Collection 

Syntax 

 SetActive (Count As Long, ServerHandles() As Long, ActiveState As Boolean, ByRef Errors() 

As Long) 

 

Part Description 

Count 

The number of items to be affected 

ServerHandles 

Array of server item handles for the items processed 

ActiveState 

TRUE if items are to be activated. FALSE if items are to be 

deactivated. 

Errors 

Array of Long’s indicating the success of the individual items 

operation.  

Example 

‘set items to active (TRUE) 

AnOPCItemCollection.SetActive ItemCount,  AnOPCItemServerHandles, TRUE, 

AnOPCItemServerErrors 

‘ add code to process any errors that are returned from ‘the method, individual errors are reported in 

69 

 

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OPC Data Access Automation Specification2.02 

the Errors array