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Event codes
The substation level control data communica-
tor is able to read, over the SPA serial bus, the
event data of the protection module of the relay,
e.g. start and trip information. Event informa-
tion that have been read are printed out in the
format: time (ss.sss) and event code. The event
codes of the relay module SPCJ 3C3 are denoted
E1...E8, E50 and E51. Additional event codes,
i.e. E52...E54, are generated by the control data
communicator. These event codes are, for in-
stance, related to the data communication.
The event codes E1...E8 and the events repre-
sented by these can be included in or excluded
from the event reporting by writing, over the
SPA-bus, an event mask (V155) to the relay
module. The event mask is a binary number
coded to a decimal number. The event codes
Code
Event
E1
Starting of stage I>
E2
Reset of starting of stage I>
E3
Tripping of stage I>
E4
Reset of tripping of stage I>
E5
Starting of stage I>>
E6
Reset of starting of stage I>>
E7
Tripping of stage I>>
E8
Reset of tripping of stage I>>
E50
Restarting
E51
Overflow of event register
E52
Temporary disturbance of the data communication
E53
No response from the relaymodule over the data
communication
E54
The relay module responds again over the data
communication
0 not included in the event reporting
1 included in the event reporting
* no code number
- cannot be programmed
E1...E8 are represented by the numbers 1, 2,
4...128. The event mask is formed by multiply-
ing, one by one, the above numbers either with
0 (event not included in the reporting) or 1
(event included in the reporting) and adding the
products, check for the procedure for calculat-
ing the checksum.
The event mask may take a value within the
range 0...255. The default value of the relay
module SPCJ 3C3 is 85, which means that all
start and trip signals are included in the report-
ing, but not the resetting. The event codes
E50...E54 and the events represented by these
cannot be excluded from the reporting.
Event codes for the overcurrent relay module
SPCJ 3C3:
Number
representing
the event
16
32
64
128
Factory set
default value
1
1
2
0
4
1
8
0
1
0
1
0
*
-
*
-
*
-
*
-
*
-
19
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