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This example assumes you have the TOPServer installed with the "simdemo.opf"project loaded. The following example builds upon the Tutorial - using with VB.NET.
Simply copy & paste the code below into the Form_load() event:
Writing to an Array-Tag Example
Writing to an Array-Tag:'
'the following constants are used here to help make the code more readable
'from an educational perspective.
'Feel free to modify the contents of the values below.
Const strPCName = ""
Const strOPCServer = "SWToolbox.TOPServer"
Const strTag = "
Channel_1.Device_1.TagArray_1"
Const iDataType = 0
Try
'
'define our OPC Web Client
Dim objOWC As New EasyOPCDALib.EasyDA3
'
'now to create an array of values to write to our tag
Dim arrValues() As Integer = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
'
'now to write the array to the tag
objOWC.WriteItemValue( _
strPCName, _
strOPCServer, _
strTag, _
arrValues)
'
'now to make sure there was no error
If Err.Number = 0 Then
MessageBox.Show("Array Write successful!")
Else
MessageBox.Show("Error (" & Err.Number & ") " & Err.Description)
End If
'
'now to dispose of our object
objOWC = Nothing
'
Catch ex As Exception
'
'display an exception to screen
MessageBox.Show(ex.Message)
End Try
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