Displays the status of a boolean value as an indicator lamp. The value can be a ComfileHMI variable, or can be read from a connected external device 1).
The lamp's state can be determined dynamically though an expression. If the expression evaluates to 0, the lamp is off. If the expression evaluates to anything non-zero, the lamp is on.
The following video illustrates a lamp being turned on or off by modifying a single variable.