Siemens SICLOCK TC 400 - Manual (Page 101)

11-99 © Siemens AG 2007 All Rights Reserved
SICLOCK
® TC 400
Service and Maintenance
11
11.1 Battery
An integrated battery supplies the clock block and the archive memory during
phases without power.
The battery can be specifically disconnected for storage which significantly
increases the battery life.
During power up, the SICLOCK TC 400 checks once whether the battery has
been disconnected after at least 30 minutes of operation. If required, the battery
is then automatically connected and a message output.
Service life of a disconnected battery during storage: > 12 years
Service life of a connected battery during storage: Approximately 6 years
See also Battery (Section 9.3.6).
11.2 Restoring the factory settings
Restoring individual parameters
Reading parameters / writing parameters / resetting parameters to factory
settings (Section 7.3.4)
Restoring parameters
You can reset the parameters to the factory settings with the /System/Reset
(0.06.04) parameter. Exceptions are parameters such as network addresses,
authorizations, etc.
Notice
If the battery is disconnected, hardware time and archives are lost when the
power supply for the SICLOCK TC 400 is switched off.
Note
The battery may only be replaced by the Siemens factory.
Please contact the Product Support.