Detailed descriptions
16.5 BIOS Setup
SIMATIC Rack PC 840 V2
16-38 Operating Instructions, Edition 05/2006, A5E00248055-04
16.5.6 Security menu
You can only edit the fields enclosed in square brackets. Two passwords can be assigned to
protect your PC from unauthorized use. The Supervisor password can be used to restrict
usage of the hard disk.
Figure 16-18 Security menu
Disabled The password is disabled.
Enabled Certain Setup fields are thus configurable by the
user, including the user password.
User Password is
The field resets automatically from [Disabled] to [Enabled] when the
password is entered.
Set Supervisor Password This field opens the dialog box for entering a password. Once it has
been entered, the supervisor password can be changed or deleted by
pressing ”Return” and thus deactivated.
Set User Password This field opens the dialog box for entering a password. Once it has
been entered correctly, the user password can be changed or deleted
by pressing ”Return” and thus deactivated.
[Disabled] No password required for system boot. Password on boot
[Enabled] Supervisor or user password must be entered for
system boot.
[Normal] All types of hard-disk access are permitted. Fixed disk boot sector
[Write protect] the user cannot install an operating system. This
is a way of protecting against boot viruses.
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