Lon Communication Protocol - ABB REC670 Applications Manual

1MRK 511 401-UEN A
20.4
20.4.1
Bay control REC670 2.2 IEC
Application manual

LON communication protocol

Application
Station HSI
MicroSCADA
IED
IEC05000663 V2 EN-US
Figure 235: Example of LON communication structure for a substation
automation system
An optical network can be used within the substation 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 56: Specification of the fibre optic connectors
Cable connector
Cable diameter
Max. cable length
Wavelength
Transmitted power
Receiver sensitivity
Gateway
Star coupler
RER 111
IED
Glass fibre
ST-connector
62.5/125 m
1000 m
820-900 nm
-13 dBm (HFBR-1414)
-24 dBm (HFBR-2412)
Section 20
Station communication
Control Center
IED
IEC05000663-1-en.vsd
Plastic fibre
snap-in connector
1 mm
10 m
660 nm
-13 dBm (HFBR-1521)
-20 dBm (HFBR-2521)
IP14420-1 v1
IP14863-1 v1
M14804-3 v5
553