Alstom MiCOM P846, Technical Manual

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SCADA Communications P846/EN SC/D
MiCOM P846 (SC) 13-13
SC
2.4.1
all of the relay settings to or from the relay a cell within the
olumn can be used. This cell (location BF03) when set to 1
makes all of the relay settings visible. Any setting changes made, with the relay set in this
ratchpad memory (including control and support settings). When the
t back to 0 any setting changes are verified and stored in non-volatile
2.5
d either automatically (rear port only) or manually (either Courier
extraction all events are extracted in sequential order using the
standard Courier event mechanism, this includes fault/maintenance data if appropriate. The
manual a
from the stored record
aster device that event information is available. The oldest, unextracted
s and maintenance records.
t has been extracted from the relay, the accept event can be used to confirm
been successfully extracted. If all events have been extracted then the
s t, if there are more events still to be extracted the next event can be
h e d event command as before.
2.5.2
by the relay under the following circumstances:
f output contact
state of opto input
e
Type 3 Courier Event)
2.5.3
lts in the following fields being returned by the relay:
Setting transfer mode
If it is necessary to transfer
communication system data c
mode, are stored in sc
value of BF03 is se
memory.
Event extraction
Events can be extracte
port). For automatic
pproach allows the user to select events, faults, or maintenance data at random
s.
2.5.1 Automatic event extraction
(See Chapter 7 Courier User Guide, publication R6512)
This method is intended for continuous extraction of event and fault information as it is
produced. It is only supported via the rear Courier port.
When new event information is created the event bit is set within the status byte, this
indicates to the m
event can be extracted from the relay using the send event command. The relay will
respond with the event data, which will be either a Courier Type 0 or Type 3 event. The
Type 3 event is used for fault record
Once an even
that the event has
event bit will re e
accessed using t e s n
Event types
Events will be created
−
Change of state o
−
Change of
−
Protection element operation
−
Alarm condition
−
Setting chang
−
Password entered/timed-out
−
Fault record (Type 3 Courier Event)
−
Maintenance record (
Event format
The send event command resu
−
Cell reference
−
Timestamp
−
Cell text
−
Cell value