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ABB Network Partner AB
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Page
Function:
1 Application
Time-tagging of internal events and disturbances is an excellent help
when evaluating faults. Without time synchronisation, only the events
within the terminal can be compared to one another. With time synchroni-
sation, events and disturbances within the entire station, and even between
line ends, can be compared during an evaluation.
If external time synchronisation is applied, there are two main alterna-
tives. Either the synchronisation message is applied via one of the com-
munication ports (Station Monitoring System (SMS) or Substation
Control System (SCS)) as a telegram message, or a minute pulse, con-
nected to a binary input.
2 Theory of operation
The terminal has its own internal clock with date, hour, minute, second
and millisecond. It has a resolution of 1 ms.
The clock has a built-in calendar for 30 years that handles leap years. Any
change between summer and winter time must be handled manually or
through external time synchronisation. The clock is powered by a capaci-
tor, to bridge interruptions in power supply without malfunction.
The internal clock is used for time-tagging disturbances, events in SMS
and SCS, and internal events.
7
Time synchronisation
1MRK 580 135-XEN
Version 1.0-00
November 1996
Basic
Summary of Contents for REC 561
Page 19: ...ABB Network Partner AB Introduction REC 561 Version 1 0 00 1MRK 580 146 XEN Page 2 14 ...
Page 31: ...ABB Network Partner AB Requirements and basic technical data REC 561 Version 1 0 00 Page 2 26 ...
Page 49: ...ABB Network Partner AB Page IV ...
Page 121: ...ABB Network Partner AB Menu tree Appendix Version 1 0 00 1MRK 580 158 XEN Page 3 72 ...
Page 139: ...ABB Network Partner AB Terminal identification Version 1 0 00 1MRK 580 160 XEN Page 4 4 ...
Page 143: ...ABB Network Partner AB Activation of setting group Version 1 0 00 1MRK 580 162 XEN Page 4 8 ...
Page 175: ...ABB Network Partner AB Configurable logic Version 1 0 00 1MRK 580 161 XEN Page 4 40 ...
Page 385: ...ABB Network Partner AB Apparatus control Version 1 0 00 1MRK 580 150 XEN Page 6 100 ...
Page 495: ...ABB Network Partner AB Interlocking Version 1 0 00 1MRK 580 151 XEN Page 6 210 ...
Page 515: ...ABB Network Partner AB Event function Version 1 0 00 1MRK 580 140 XEN Page 6 230 ...
Page 519: ...ABB Network Partner AB Page IV ...
Page 561: ...ABB Network Partner AB Time synchronisation Version 1 0 00 1MRK 580 135 XEN Page 7 42 ...
Page 569: ...ABB Network Partner AB Internal events Version 1 0 00 1MRK 580 134 XEN Page 7 50 ...
Page 599: ...ABB Network Partner AB Index Version 1 0 01 1MRK 580 175 XEN Page 8 6 ...
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