Operating instructions

Configuring the operating system
6.8 Changing HMI device settings
MP 377, MP 377 PRO (WinCC flexible)
Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
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6.8.5 Setting the screen saver
Introduction
You can set the following time intervals on the HMI device:
● For the automatic activation of the screen saver
● For the automatic reduction in the screen's backlighting
When you do not undertake an operation within the configured interval, the configured
function will be activated automatically.
The screen saver and the reduced screen backlighting functions are switched back off by
means of the following actions:
● By pressing any key
● By touching the touch screen
The function associated to the key or button will not be executed by this.
NOTICE
Reduce backlighting
The brightness of the backlighting decreases incrementally during its operational life.
In order to not shorten the operational lifetime of the backlighting unnecessarily,
activate the backlighting reduction.
Activating the screen saver
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.