ABB RELION REC650, Commissioning Manual

Page: 55 / 130

Section 7 Establishing connection and verifying the
LON communication
7.1 Communication via the rear ports
M12196-2 v1
7.1.1 LON communication
M12196-4 v5
LON communication is normally used in station automation systems. Optical fiber
is used within the substation as the physical communication link.
The test can only be carried out when the whole communication system is installed.
Thus, the test is a system test and is not dealt with here.
M14804-3 v5
Control Center
IED IED IED
Gateway
Star coupler
RER 111
Station HSI
MicroSCADA
IEC05000663-1-en.vsd
IEC05000663 V2 EN-US
Figure 8: Example of LON communication structure for a station automation
system
An optical network can be used within the station automation system. This enables
communication with the IEDs through the LON bus from the operator’s workplace,
from the control center and also from other IEDs via bay-to-bay horizontal
communication. For LON communication an SLM card should be ordered for the
IEDs.
1MRK 511 425-UEN A
Section 7
Establishing connection and verifying the LON communication
Bay control REC650 2.2 IEC 49
Commissioning manual