B&R Industries Automation PC 620, Руководство пользователя

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Software • Automation PC 620 with BIOS
Automation PC 620 User's Manual V 1.90
1.2 855GME - BIOS description
1.2.1 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 the Automation PC 620
systems is produced by Phoenix.
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, and remains in the APC620 even when the power is
turned off (no 24 VDC supply) .
1.2.2 BIOS setup and boot procedure
The BIOS is immediately activated when switching on the power supply of the Automation PC
620 system 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 <F2>
key and re-save the settings.
BIOS reads the system configuration information in CMOS RAM, checks the system, and
configures it using the Power On Self Test (POST).
When these "preliminary steps" are finished, BIOS searches for an operating system in the data
storage 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 as soon as the following message appears on
the lower margin of the display (during POST):
"Press <F2> to enter SETUP"
Information:
• The following diagrams and BIOS menu items including descriptions refer to
BIOS Version 1.21. It is therefore possible that these diagrams and BIOS
descriptions do not correspond with the installed BIOS version.
• The setup defaults are the settings recommended by B&R. The setup defaults
are dependent on the DIP switch configuration on the baseboard (see Section
1.2.10 "Profile overview" on page 302).