Service and maintenance
11.1 Removing and installing hardware components
SIMATIC IPC647C
98 Operating Instructions, 12/2010, A5E02669337-02
11.1.5 Replacing the backup battery
The battery is used to back up the CMOS data for BIOS setup and the real-time clock.
Items to observe for replacement
Note
Batteries are wearing parts. Backup batteries should be replaced at intervals of 5 years in
order to maintain PC functionality.
CAUTION
Risk of damage!
The lithium battery may only be replaced with an identical battery or with a type
recommended by the manufacturer (Order no.: A5E00047601). Information about original
spare parts for SIMATIC PCs is available on the Internet at:
After-sales information system for SIMATIC PC/PG (
5http://www.siemens.com/asis)
Disposal
CAUTION
Used batteries must be disposed of in accordance with local regulations.
Preparation
Note
The configuration data of the device may be deleted when you replace the backup battery,
depending on BIOS settings.
The configuration data are retained in the BIOS "Profile: User" setting; only the date and time
must be set again.
A table in which you can log your settings is available in the section 6BIOS Setup default
settings (Page
3201).
13. Disconnect the device from the power supply and remove all connecting cables from the
device.
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