ABB ret650, Applications Manual

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16.4 LON communication protocol
IP14420-1 v1
16.4.1 Application
IP14863-1 v1
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 120: 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.
The fibre optic LON bus is implemented using either glass core or plastic core fibre
optic cables.
Table 38: Specification of the fibre optic connectors
Glass fibre Plastic fibre
Cable connector ST-connector snap-in connector
Cable diameter 62.5/125 m 1 mm
Max. cable length 1000 m 10 m
Wavelength 820-900 nm 660 nm
Transmitted power -13 dBm (HFBR-1414) -13 dBm (HFBR-1521)
Receiver sensitivity -24 dBm (HFBR-2412) -20 dBm (HFBR-2521)
1MRK 504 169-UEN A
Section 16
Station communication
Transformer protection RET650 2.2 IEC 323
Application manual