Siemens SIMATIC HMI Operating Instructions Manual page 153

● By touching the touch screen
The function associated to the key or button will not be executed by this.
Validity
The time until the backlighting is reduced is always the shorter time interval.
In other words,. the time interval set in the "Screensaver" dialog box applies if it is shorter
than the setting for "Power Save 1" in the project.
If a value of "0" is entered in the "Screensaver" dialog box for the reduction in backlighting,
the value set in the project will apply.
After you have selected the screen saver and reduction of the backlighting, you must restart
the HMI device. The settings become effective following a restart.
NOTICE
Reducing the brightness of the backlighting
The brightness of the backlighting decreases incrementally during its operational life. In
order to increase the operational life of the backlighting, activate the backlighting reduction.
Burn-in effect
Screen contents may occasionally leave a burn-in effect in the background if they appear
too long.
This burn-in effect will automatically disappear after a certain amount of time if the
screensaver is activated, for example. The longer the same content is displayed on the
screen, the longer it will take for the burn-in effect to disappear.
Generally, you should always activate the screen saver.
When the screen saver is active, the backlighting is reduced at the same time.
Requirements
You have opened the "Screensaver" dialog with the "ScreenSaver"
①
②
③
Mobile Panel 277F IWLAN
Operating Instructions, 12/2007, A5E01003940-01
Time interval in minutes until backlighting is reduced
Period of time in minutes before the screen saver is activated
Screen saver setting
Configuring the operating system
6.6 Changing HMI device settings
icon.
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