Technical information
8.6 BIOS description
SIMATIC IPC477D, IPC477D PRO
256
Operating Instructions, 11/2016, A5E31347228-AF
8.6.7
Alarm, error and system messages
During startup (the boot process), the BIOS first performs a Power On Self Test (POST) and
checks whether certain functional units of the PC are operating error-free. The boot
sequence is immediately interrupted if critical errors occur.
BIOS initializes and tests further functional units if the POST does not return any errors. In
this startup phase, the graphics controller is initialized and any error messages are output to
the screen.
The error messages output by system BIOS are listed below. For information on error
messages output by the operating system or application programs, refer to the
corresponding manuals.
On-screen error messages
On-screen error message
Meaning / tip
Operating system not found
Possible causes:
•
No operating system installed
•
Incorrect active boot partition
•
Wrong boot drive settings in SETUP
Keyboard controller error
Controller error.
Contact your technical support team.
SMART failure detected on HDD Hard disk reports pending failure through S.M.A.R.T.
CMOS battery failed
CMOS battery is not connected.
CMOS battery weak
CMOS battery is weak
Real-time clock has lost power
The CMOS clock was operated without battery or with a battery
that was too weak, during battery change, for example. Check the
CMOS clock.
Keyboard error
No keyboard inserted.
PLD configuration failed
Programming of the PLC on the motherboard has failed.
