– 21 –
To set the brightness limits based on the sunrise and sunset, the status file retrieves the
sunrise/sunset times in HH:MM:SS. If this time cannot be retrieved, the firmware defaults to
a value of 6:00 AM for sunrise and 9:00 PM for sunset.
The operator can set an offset time either before or after sunset/sunrise. For example, the
brightness level can be set to take effect 30 minutes before sunrise each day by entering
-30
in the sunrise
Offset
field or 30 minutes after sunset each day by entering
30
in the
Offset
field.
The area between the red and blue lines on the graph in
shows the brightness
values that the display can operate within.
Figure 44:
Brightness Limits - Day and Night, Sunrise and Sunset