ABB Relion 650 Series Communication Protocol Manual page 25

1MRK 511 243-UEN A
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TimeSyncMode specifies the time sent by the IED. The time synchronisation is done using
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the following ways:
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EvalTimeAccuracy evaluates time accuracy for invalid time. Specifies the accuracy of the
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synchronization (5, 10, 20 or 40 ms). If the accuracy is worse than the specified value, the
"Bad Time" flag is raised. To accommodate those masters that are really bad in time sync,
the
According to the standard, the "Bad Time" flag is reported when synchronization has been
omitted in the protection for >23 h.
IEC 60870-5-103, 650 series
Communication protocol manual
Coordinated Universal Time (
Local time set in the master (
Local time set in the master adjusted according to daylight saving time (
DST )
IEDTime : The IED sends the messages with its own time.
LinMasTime : The IED measures the offset between its own time and the master
time, and applies the same offset for the messages sent as in the
in LinMasTime it applies the time changes occurred between two synchronised
messages.
IEDTimeSkew : The IED measures the offset in between its own time and the master
time and applies the same offset for the messages sent.
EvalTimeAccuracy can be set to Off .
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IEC 60870-5-103 communication engineering
UTC )
Local )
Section 3
Local with
IEDTimeSkew . But
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