Siemens simatic hmi op27 Equipment Manual page 140

Operate BIOS Operations can only be carried out in Setup via the keyboard.
setup
Scroll through the definable values with the arrow keys. Some fields allow
direct input from the keyboard.
Default button
After clicking on the Default button, the PC standard configuration and operat-
ing mode OP mode (OP firmware) are set.
OP27, OP37 Equipment Manual
Release 05/99
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Individual input fields in the BIOS Setup are selected by pressing:
Apply the setting specified by pressing:
Operating modes
TAB
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