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⁾.

• Reversed Display - If this checkbox is check the lamp will be ON if the value read from the external device is 0 and OFF if the value read is 1, opposite from the default behavior.

Lamp will turn on if the condition is satisfied.

Lamp will turn on if the bit index is 1.

In the bit index, MSB is a large value and LSB is 0. For example 16 bit valus's bit index is

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.

Back to ComfileHMI

To have the lamp blink, select the “Blink when ON” checkbox.