Siemens siprotec 7SA6 User Manual

Configuration
5-577SA6 Manual
C53000-G1176-C133-1
Figure 5-57 Dialogue box for time synchronization and format in DIGSI
®
4
Here you may select the time standard for internal time stamping by selecting from the
following modes:
The RTC continues running, even when the auxiliary voltage is temporary absent, by
means of an internal battery. During the device powering up, or if the auxiliary voltage
has failed, this RTC is the first synchronization source for the internal clock,
independent of operating mode selected.
In ,QWHUQDO mode, the system time is controlled using only the RTC as the
synchronization source. It may be set manually. The procedure for manual date/time
setting is given in Section 7.2.1.
If an external source is selected, only the selected synchronization source is used. If
the source fails, the internal clock continues unsynchronized.
If time synchronization is to take place via a master control system, the option ,(&²
²² or 352),%86)06 must be selected (Figure 5-57).
*: not available in firmware Version 4.0 and 4.1
Table 5-7 Operating modes for time synchronization
Item Operating Mode Explanations
1 I
QWHUQDO Internal synchronization using RTC (pre-set)
2 ,E& ²² External synchronization using the system interface and the
IEC 60870–5–103 protocol
3 P
52),%86)06 External synchronization using PROFIBUS interface
4 ,R,*%7LPHVLJQDO External synchronization using IRIG B
5 '&F7LPHVLJQDO External synchronization using DCF 77
6 SIMEAS Time signal
6\QFB
R[
External synchronization using SIMEAS Sync. Box
7 3XOsHYLDELQDU\
LQSXW
External synchronization with pulse via binary input

Siemens siprotec 7SA6 Specifications

General

Brand	Siemens
Model	siprotec 7SA6
Category	Relays
Language	English