Technical Data
4.26 Additional Functions
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
636
Real Time Clock and Buffer Battery
Commissioning aids
Time synchronisation/Clock
Resolution for operational messages 1 ms
Resolution for fault messages 1 ms
Back-up battery Type: 3 V/1 Ah, Type CR 1/2 AA
Self-discharging time approx. 10 years
Operational Measured Values
Switching device test
Time Synchronization DCF 77/IRIG-B-Signal
Binary Input
Communication
Operating modes of the clock management
No. Operating mode Explanations
1 Internal Internal synchronisation via RTC or Timing Master
2 IEC 60870-5-103 External synchronisation via system interface (IEC 60870-5-103) or Timing Master
3 Time signal IRIG B External synchronisation via IRIG B (telegram format IRIG-B000) or Timing Master
4 Time signal DCF 77 External synchronization via DCF 77 or Timing Master
5 Time signal synchro-box External synchronisation using SIMEAS Sync. box or Timing Master
6 Pulse via binary input External synchronisation with pulse via binary input or Timing Master
7 Ethernet NTP External synchronisation using system interface (IEC 61850)
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