Siemens PANEL PC 877 用户手册

Detailed descriptions

17.6 BIOS setup

SIMATIC Panel PC 877

17-60

Operating instructions, Release 07/2006, A5E00877780-01

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.

This mode of protection is not enabled unless "Password on boot " is

[enabled].
[Supervisor]

Diskette access is not possible unless the

supervisor password was entered during system

boot.

Floppy disk drive access

[User]

Diskette access is not possible unless the user

password was entered during system boot.

Attention: This function cannot be used under

Windows NT/2000 Professional/XP Professional,

since this operating system does not access the

diskette via BIOS routines. Please use the

Windows NT/2000/ Professional/XP Professional

system programs for this purpose.

Outputs a virus check prompt when booting.
[Disabled]

No message during system startup.

[Daily]

Daily

[Weekly]

Every Monday

Virus check reminder

[Monthly]

Every first of the month

Outputs a message when booting requesting a system backup.
[Disabled]