This property indicates the X scale of an E3Chart to which this Pen is linked. The scale configured for this property has a horizontal orientation, that is, it can be positioned on top or at the bottom of an E3Chart. Example:

Sub CommandButton1_Click()
  Set Chart = Screen.Item("E3Chart1")
  Set Pen = Chart.Pens.AddPen("DemoTagPen2")
  Pen.XLink = "Data.DemoTag2"
  Pen.UseTimeStamp = True
  ' The scale must exist.
  Pen.ScaleX = "ScaleForDemoTag2"
  Pen.Connect()
End Sub

This property has no effect when the UseAutomaticAxis property is set to True.