Blanking The Screen - Siemens simatic hmi op27 Equipment Manual

System Settings
11.2

Blanking the Screen

Purpose
The brightness of the LCD back–lighting is reduced during the course of time
due to technological reasons. To extend the useful life of the back-lighting:
S
S
S
Action
S
The back-lighting is turned back on after pressing a button.
11-4
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reduce its brightness on the OP27,
switch it off on the OP37.
Trigger using the standard screen
Press the button assigned to the icon, depicted on the right, in
the System Settings standard screen. This blanks the screen.
Automatic triggering
If the OP is not operated within a configured period of time, the OP screen
is blanked automatically.
The screen is only blanked automatically if this function has been
configured in ProTool.
OP27, OP37 Equipment Manual
Release 05/99