ABB REC 561 User Manual page 299

1MRK 580 150-XEN
Page 6 - 14
Apparatus control
If the operator place selection is used without any priority and if the out-
puts REMOTE/STATION/LOCAL can be set independent of each other,
the inputs REMOTE/STATION/LOCAL on COMCON can be used. See
configuration example in the "Operator place selection" on page 34.
Reservation and selection
The purpose of the reservation and selection function is primarily to trans-
fer interlocking information in a safe way and to prevent double operation
in a bay, switchgear, or complete substation. The "Reservation function"
on page 26 describes the method and the meaning of the inputs and out-
puts of BAYCON.
Information exchange
The input EXCH_IN and output EXCH_OUT are used for information
exchange between BAYCON elements, when more than eight apparatuses
in the same bay are used for control. The inputs and outputs of these ele-
ments are connected to each other in a loop as shown in Fig. 5.
The reservation and selection function has several bits available to request
other BAYCONs to be reserved. These BAYCONs reply with an
acknowledge through the same information exchange.
Only BAYCONB, BAYCOND, and BAYCONF have this functionality.
Fig. 5 shows the information exchange connections for one bay with up to
24 apparatuses.
Fig. 5 Connections between three BAYCONs intended to control up
to 24 apparatuses
ABB Network Partner AB
BAYCON
EXCH_IN
EXCH_OUT
BAYCON
EXCH_IN
EXCH_OUT
BAYCON
EXCH_IN
EXCH_OUT
Version 1.0-00
(X80150-5)