Opc data Access Automation Specification

4.2.4.9

 

GetAccessPaths  

Description 

Returns the strings that are legal AccessPaths for this ItemID. May be Null if there are no 

AccessPaths for this ItemID or the server does not support them. 

Syntax 

GetAccessPaths(ItemID As String) As Variant 

 

Part Description 

36 

 

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OPC Data Access Automation Specification2.02 

ItemID 

Fully Qualified ItemID 

 

Remarks 

AccessPath is the “how” for the server to get the data specified by the ItemID (the what).  The client 

uses this function to identify the possible access paths for the specified ItemID. 

Example AnOPCServerBrowser.ShowLeafs 

For I = 1 To AnOPCServerBrowser.Count 

Set AnAccessPath = AnOPCServerBrowser.GetAccessPaths(“FIC101.PV) 

Next I 

‘ or  

AnOPCServerBrowser.MoveDown “Mixing” 

Set AnAccessPath = AnOPCServerBrowser.GetAccessPaths(“FIC101.PV) 

 

37 

 

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OPC Data Access Automation Specification2.02