General User Interface Event Reference

The following events occur when the user performs an action that involves the panel or any control on the panel.

Event Description Event Data Fields
Value Changed

Generated when the user changes the value of a control. You must read the terminal of a latched Boolean control in its Value Change event case.

  • Index—Index of the event source within an individual event diagram.
  • Time—Value of the millisecond timer when the event occurred.
  • Control Reference—Reference to the control on which the event occurred.
  • Old Value—Value of the control before the data change.
  • New Value—Value of the control after the data change.