ABB Relion 650 Series Communication Protocol Manual page 49

1MRK 511 243-UEN A
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 deteceted (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
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
The only information that is easily available is test-mode status. The other information is
always set (hard coded) to:
TP
TM
OTEV
Another information element in ASDU23 is the FAN (fault number). According to the standard
this is a number that is incremented when a protection function takes action.
ASDU26
When a disturbance has been selected by the master; (by sending ASDU24), the protection
equipment answers by sending ASDU26, which contains an information element named NOF
(number of grid faults). This number must indicate fault number in the power system,that is, a
fault in the power system with several trip and auto-reclosing has the same NOF (while the
FAN must be incremented).
To get INF and FUN for the recorded binary signals there are parameters on the disturbance
recorder for each input. The user must set these parameters to whatever he connects to the
corresponding input.
IEC 60870-5-103, 650 series
Communication protocol manual
Recorded fault with trip. [1]
Disturbance data waiting for transmission [0]
Disturbance data initiated by other events [1]
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IEC 60870-5-103 vendor specific implementation
Section 4
43