====== Lamp ======

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 ((a PLC or MCU connected to the ComfileHMI)).

{{ :comfilehmi:lamp:hmi_lamp.png?nolink |}}

===== Bit Address =====

{{ :comfilehmi:lamp:hmi_lamp2.png?nolink |}}

  * //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.

===== Word Address : Compare =====

Lamp will turn on if the condition is satisfied.

{{ :comfilehmi:lamp:hmi_lamp3.png?nolink |}}

{{ :comfilehmi:lamp:hmi_lamp3_1.png?nolink |}}
===== Word Address : Bit Mask =====

Lamp will turn on if the bit index is 1.

{{ :comfilehmi:lamp:hmi_lamp4.png?nolink |}}

==== bit index ====

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

| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| MSB | |||||||||||||| LSB |

===== Expressions =====

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.

{{ :comfilehmi:lamp:lampsusik.png?nolink |}}


===== Blinking =====

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

{{ :comfilehmi:lamp:blink.png }}

===== Demo Video =====

{{ :comfilehmi:lamp:buttonlampvideo4.mp4?1000x600 |}}

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