Siemens Plant Central Clock TC100 - Manual (Page 92)

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SICLOCK ® TC100 Operating Instructions
Service and maintenance
11
11.1 Battery
The device has an integrated battery which supplies a clock module and the
archive buffer during phases without the power supply.
The battery can be switched off when put into storage, which lengthens its service
life and availability.
After a minimum operating period of 30 minutes after Power Up, SICLOCK
TC100 checks once whether the battery is switched off. If necessary, the battery
is then switched on automatically, and a message is output.
Service life of a switched-off battery in storage: > 12 years
Service life of a switched-on battery in storage: Approx. 6 years
See also Battery (Chapter 9.3.6).
11.2 Restoring factory defaults
Restoring individual parameters
Reading / writing parameters, setting to factory defaults (Chapter 7.3.4)
Restoring parameters
You use the parameter /System/Reset (0.06.04) to reset the parameters to the
factory defaults. This does not reset parameters such as network addresses,
authorizations etc.
Notice
If the supply voltage is switched off while the battery is switched off, the SICLOCK
TC100 loses the hardware time and the archives.
Note
The battery may only be replaced by the Siemens factory.
Please contact Product Support.