ABB Relion 670 Series Applications Manual page 327

1MRK 511 401-UUS F
from each bay respectively, which have received a request from this bay. Also the information of
valid transmission over the station bus must be received.
IED
. . .
ANSI05000117 V2 EN-US
Figure 131: Application principles for reservation over the station bus
The reservation can also be realized with external wiring according to the application example in
Figure 132. This solution is realized with external auxiliary relays and extra binary inputs and
outputs in each IED, but without use of function blocks QCRSV and RESIN.
IED
ANSI05000118 V2 EN-US
Figure 132: Application principles for reservation with external wiring
The solution in Figure
example in Figure 133. The solutions in Figure
security compared to the solution in Figure 131, but instead have a higher availability, since no
acknowledgment is required.
Bay control REC670
Application manual
IED
3
RESIN
EXCH _IN
EXCH _ OUT
RESIN
EXCH _IN
EXCH _OUT
3
IED
BI
BO
132 can also be realized over the station bus according to the application
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SCSWI
RES_GRT
RES_RQ
RES_RQ1
From other
. . .
SCSWI in RES_RQ8
the bay
RES_ DATA
Station bus
SCSWI
RES_ EXT
SELECTED
Other SCSWI in the bay
BI
132 and Figure
QCRSV
. .
To other
RES_GRT1
. .
SCSWI
RES_GRT8
in the
bay
2
en 05000117 _ansi . vsd
OR
BO
+
en 05000118_ ansi. vsd
133 do not have the same high
Section 14
Control
321