B&R 500 Series, Руководство пользователя

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Software • BIOS options
Chapter 4
Software
Power Panel 500 User's Manual V 1.00 131
Chapter 4 • Software
1 BIOS options
Info:
The following diagrams and BIOS menu items including descriptions refer to BIOS
version N0.15. It is therefore possible that these diagrams and BIOS descriptions do
not correspond with the installed BIOS version.
1.1 General information
BIOS stands for "Basic Input Output System". It is the most basic standardized communication
between the user and the system (hardware). The BIOS system used in this B&R industrial
PC is produced by Insyde.
The BIOS Setup Utility lets you modify basic system configuration settings. These settings are
stored in CMOS and in EEPROM (as a backup).
The CMOS data is buffered by a battery (if present), and remains in the B&R industrial PC even
when the power is turned off (no 24 VDC supply).
1.2 BIOS setup and start procedure
BIOS is immediately activated when switching on the power supply of the B&R industrial PC
or pressing the power button. The system checks if the setup data from the EEPROM is "OK".
If the data is "OK", then it is transferred to the CMOS. If the data is "not OK", then the CMOS
data is checked for validity. An error message is output if the CMOS data contains errors and
the boot procedure can be continued by pressing the <F1> key. To prevent the error message
from appearing at each restart, open the BIOS setup by pressing the <Del> key and re-save
the settings.
BIOS reads the system configuration information in CMOS RAM, checks the system, and con-
figures it using the Power On Self Test (POST).
When these "preliminaries" are finished, BIOS seeks an operating system in the data stor-
age devices available (hard drive, floppy drive, etc.). BIOS launches the operating system and
hands over control of system operations to it.
To enter BIOS Setup, the <F2> key must be pressed after the USB controller has been initial-
ized as soon as the following message appears on the monitor (during POST): "Press F2 go
to Setup Utility"