System Time - Siemens Simatic RTU303xC Series Operating Instructions Manual

Configuration (WBM)
4.10 System
● Diagnostics buffer file
File with the diagnostics buffer entries of the RTU:
diagbuf.txt
● Other files
Files that you yourself save on the SD card:.
*.*
4.10.4

System time

Buffering of the time
The internal RTU clock is maintenance free and buffered by a capacitor, to be able to bridge
the duration of a battery change. With this, the simultaneous failure of the battery module
and the external power supply can be bridged for 3 hours (at room temperature).
System time
In this tab, you configure the time and time-of-day synchronization of the RTU.
Note
Time-of-day synchronization
With applications that require time-of-day synchronization, you should synchronize the time
of day of the RTU. If you do not synchronize the time of day of the RTU regularly, there may
be deviations of several seconds a day between the time of day of the RTU and the time-of-
day of the master station.
Note
Year dates ≥ 2000
The RTU only accepts year dates ≥ 2000
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Operating Instructions, 06/2019, C79000-G8976-C382-06
RTU303xC