ABB IEC 60870-5-103 Communication Protocol Manual page 58

Section 4
IEC 60870-5-103 vendor specific implementation
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Disturbance upload
All analog and binary signals that are recorded with disturbance recorder can be
reported to the master. The last eight disturbances that are recorded are available
for transfer to the master. A successfully transferred disturbance (acknowledged by
the master) will not be reported to the master again.
When a new disturbance is recorded by the IED a list of available recorded
disturbances will be sent to the master, an updated list of available disturbances can
be sent whenever something has happened to disturbances in this list. For example,
when a disturbance is deleted (by other client, for example, SPA) or when a new
disturbance has been recorded or when the master has uploaded a disturbance.
Deviations from the standard
Information sent in the disturbance upload is specified by the standard; however,
some of the information are adapted to information available in disturbance
recorder in the IED series.
This section describes all data that is not exactly as specified in the standard.
ASDU23
In 'list of recorded disturbances' (ASDU23) an information element named SOF
(status of fault) exists. This information element consists of 4 bits and indicates
whether:
• Bit TP: the protection equipment has tripped during the fault
• Bit TM: the disturbance data are currently being transmitted
• Bit TEST: the disturbance data have been recorded during normal operation or
test mode.
• Bit OTEV: the disturbance data recording has been initiated by another event
than start
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1MRK 511 394-UEN A
IEC 60870-5-103 meaning
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Communication protocol manual