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 v6
LON communication is normally used in substation 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 v6
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 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.
1MRK 506 377-UEN C
Section 7
Establishing connection and verifying the LON communication
Railway application RER670 2.2 IEC
53
Commissioning manual
Summary of Contents for RELION RER670
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