15.4
LON communication protocol
IP14420-1 v1
15.4.1
Application
IP14863-1 v1
M14804-3 v6
Control Center
IED
IED
IED
Gateway
Star coupler
RER 111
Station HSI
MicroSCADA
IEC05000663-1-en.vsd
IEC05000663 V2 EN-US
Figure 92:
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 fiber optic LON bus is implemented using either glass core or plastic core fiber
optic cables.
Table 29:
Specification of the fiber optic connectors
Glass fiber
Plastic fiber
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 505 388-UEN B
Section 15
Station communication
Busbar protection REB650 2.2 IEC
255
Application manual
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