BeforeStart()

Occurs when the I/O Driver is about to start communication. Use the BeforeStart event to perform any necessary actions before starting communication, such as setting up parameters. Example:

Sub Driver1_BeforeStart()
  ' It performs the startup of driver parameters before
  ' starting the communication
  P1 = 0
  P2 = 20
  P3 = 80
  P4 = 0
End Sub