12
Apart from the event codes the substation com-
munication system can read, via the SPA bus, all
input data (I data), output data (O data), setting
values (S data), information recorded in the
memory (V data), and some other data. Further,
part of the data can be altered by commands
given over the SPA bus. All the data are availabe
on channel 0
R = data can be read from the module
W = data can be written to the module
Data Code Data Value
direction
Measured residual current I
0
I1 R 0…250% x I
n
Blocking of tripping of stage I
0
> I2 R 0 = no blocking
1 = tripping blocked
Blocking of tripping of stage I
0
>> I3 R 0 = no blocking
1 = tripping blocked
Starting of stage I
0
> O1 R 0 = not started
1 = started
Tripping of stage I
0
> O2 R 0 = not tripped
1 = tripped
Starting of stage I
0
>> O3 R 0 = not started
1 = started
Tripping of stage I
0
>> O4 R 0 = not tripped
1 = tripped
Alerted start current of stage I
0
> S1 R 0.2…50% x I
n
Alerted operate time of stage I
0
> S2 R 0.05…10 s
Alerted start current of stage I
0
>> S3 R 1…200% x I
n
999 = ∞
Alerted operate time of stage I
0
>> S4 R 0.05…10 s
Alerted checksum of switchgroup SG1 S5 R 0…255
Start current of stage I
0
>, set with S11 R 0.2…50% x I
n
the setting knob
Operate time of stage I
0
>, set S12 R 0.05…10 s
with the setting knob
Start current of stage I
0
>>, set S13 R 1…200% x I
n
with the setting knob 999 = ∞
Operate time of stage I0>>, set S14 R 0.05…10 s
with the setting knob
Checksum of switchgroup SG1 S15 R 0…255
(set with the switches)
Remotely set percentage of the S21 R, W 0…999%
start current of stage I
0
>
Remotely set percentage of the S22 R, W 0…999%
operate time of stage I
0
>
Remotely set percentage of the S23 R, W 0…999%
start current of stage I
0
>>
Remotely set percentage of the S24 R, W 0…999%
operate time of stage I
0
>>
Remotely set checksum of switch- S25 R, W 0…255
group SG1
Remotely set start current of stage I
0
> S31 R 0.2…50% x I
n
Remotely set operate time of stage I
0
> S32 R 0.05…10 s
Remotely set start current of stage I
0
>> S33 R 1…200% x I
n
999 = ∞
Remotely set operate time of stage I
0
>> S34 R 0,05…10 s
Remotely set checksum of S35 R 0…255
switchgroup SG1
Remote transfer
data
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