Functions
2.49 Auxiliary Functions
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
346
2.49.11 Date and Time Stamping
The integrated date/clock management enables the exact timely assignment of events e.g., those in the oper-
ational messages and fault messages or in the lists of the minimum/maximum values.
2.49.11.1Functional Description
Mode of Operation
The time can be influenced by
• internal RTC (Real Time Clock),
• external synchronization sources (e.g. DCF77, IRIG B),
• external minute pulses via binary input.
Note
Upon delivery of the device, the internal clock RTC is always set by default as synchronization source, regard-
less of whether the device is equipped with a system interface or not. If the time synchronization is to use an
external source, this must be selected.
The procedure for changing the synchronization source is described in detail in the SIPROTEC 4- System De-
scription.
The following operating modes can be selected :
Either the European time format (DD.MM.YYYY) or the US format (MM/DD/YYYY) can be specified for the
device display
To preserve the internal battery, this switches off automatically after some hours in the absence of an auxiliary
voltage supply.
No. Operating Mode Comments
1I
nternal Internal synchronization using RTC (default)
2IE
C 60870-5-103 External synchronization via system interface (IEC 60870-5-103)
3PROFIBUS DP External synchronization using PROFIBUS interface
4IR
IG B Time signal External synchronization using IRIG B
(telegram format IRIG-B000)
5DCF
77 Time signal External synchronization using DCF 77
6 Sync. B
ox Time signal External synchronization using the SIMEAS-Synch.Box time signal
7Puls
e via binary input External synchronization with pulse via binary input
8 Field bus (DNP, Modbus) External synchronization using field bus
9 NTP (IEC 61850) External synchronization using system interface (IEC 61850)
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