Maintenance and service
11.1 Removing and installing hardware components
Replacing the backup battery
To be noted before you replace the battery
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).
Depleted batteries must be disposed of in accordance with local regulations.
The configuration data of the device are deleted when the battery is replaced.
1. Note down the current settings of the BIOS Setup.
2. Disconnect the device from mains and unplug all cables.
A list in which you can note down this information is found in the BIOS manual
Operating Instructions, Edition 05/2006, A5E00248055-04
SIMATIC Rack PC 840 V2