Opc data Access Automation Specification

4.1.5.5

 

GetErrorString 

Description 

Converts an error number to a readable string. The server will return the string in the Locale that is 

specified in the server level LocaleID property.   Refer to the properties of the OPC Server for 

setting and getting the LocaleID property. 

Syntax 

GetErrorString(ErrorCode As Long ) As String 

Part Description 

ErrorCode 

Server specific error code that the client application had returned from an interface 

function from the server, and for which the client application is requesting the server’s 

textual representation.  

Example 

Dim AnOPCServerErrorString As String 

‘ for this sample, assume while adding some items, we detected that one of the items was ‘invalid.  

24 

 

---

OPC Data Access Automation Specification2.02 

Not all code included for clarity reasons. 

 

AnOPCItemCollection.Add AddItemCount, AnOPCItemIDs, AnOPCItemServerHandles, 

AnOPCItemErrors 

’Get the error string and display it to tell the user why the item could not be added   

AnOPCServerErrorString = AnOPCServer.GetErrorString(AnOPCItemErrors (index)) 

‘and more code 

ErrorBox.Text = AnOPCServerErrorString 

‘and more code