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7.3.5
Replacing the backup battery
The battery is used to back up the CMOS data for the BIOS setup and the real-time clock.
Note
Note the following points:
• Check the maintenance interval.. You can find additional information in the section
"Maintenance intervals (Page 80)".
• Replace the lithium battery only with an identical one or with a battery type
recommended by the manufacturer, see under "Requirement".
Requirement
• For the current BIOS setup settings, see section "BIOS description (Page 101)".
• The device is fully disconnected from the line voltage, see section "Switching off the
device (Page 43)".
• The device is open, see the section "Open the device. (Page 53)".
• All cables on the device are unplugged.
• 1 lithium battery; for article number, see section "Accessories and spare parts (Page 20)"
Procedure
Danger from short circuit
Conductive materials cause a battery short-circuit or damage adjacent modules.
• Only use insulated materials as tools for the battery replacement.
• Do not touch any adjacent modules.
NOTICE
Damage to the battery
Grease residues from your hands damage the battery.
• Do not touch the battery with your hands.
• Use suitable gloves, for example.
Note
The configuration data of the device may be deleted after battery replacement, depending on
the BIOS setting. With BIOS setting "Profile: User", the configuration data of the device is
retained; only the date and time must be set again.
SIMATIC IPC1047E
Operating Instructions, 03/2021, A5E50259546-AA
CAUTION
Device maintenance and repair
7.3 Removing and installing hardware
85
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