Application - ABB REC 561 User Manual

ABB Network Partner AB
Version 1.0-00
November 1996
Function:

1 Application

Bus connection units
REL 511
REL 531
REC 561
REOR 100
Remote communication
Optional
The remote communication can be used for different purposes, which ena-
ble better access to the information stored in the terminals. For control ter-
minals, the remote communication is also used for communication
directly between terminals (bay-to-bay communication).
The remote communication can be used with a station monitoring system
(SMS), via substation automation (SA) or a SCADA system. Normally,
SPA communication is used for SMS and SA; LON communication is
used for SA. SPA communication is also applied when using the front
communication port, but for this purpose, no special Remote communica-
tion function is required in the terminal. Only the software in the PC and a
special cable for front connection is needed.
SPA bus
Fibre optic
loop
Opto/electrical
converter
(Minute pulse
from station clock)
Fig. 1
LON-bus
REC 561
REL 531
REC 561
REL 531
Fig. 2
Telephone
modem
Example of SPA communication structure for a station moni-
toring system
Micro SCADA
Example of LON communication structure for substation auto-
mation
1MRK 580 142-XEN
Page
SMS-BASE
SM/REL 511
SM/REL 531
SM/REC 561
SM/REOR 100
RECOM
REVAL
Telephone
modem
(X80142-1)
Gateway
(X80142-2)
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