Operating instructions

Maintenance and service
12.4 Removing and installing hardware components
SIMATIC Panel PC 677B
Operating Instructions, 05/2007, A5E01035609-01
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Steps for replacing the battery
5 Fasten the new battery and reinsert the battery holder.
6 Close the battery compartment.
Reconfiguring the BIOS setup
If the battery replacement took longer than 30 seconds, the configuration data of the device
have been deleted and you need to reconfigure these in the BIOS Setup.
12.4.9 Removing/Installing the Power Supply
Warning
Only authorized trained personnel are allowed to replace the power supply unit.
Preparations
1. Isolate the device from mains and disconnect all connection cables.
2. Open the device.