Hitachi Relion 670 Series Applications Manual page 381

1MRK506375-UEN Rev. N
IEC16000073 V1 EN-US
Figure 191:
The expanded quality bits are visible on the outputs as per IEC 61850-7-3 standard. When written to
IED, the configuration will show the expanded form of the respective MU channel quality information
during the online monitoring in the ACT.
18.4 LON communication protocol
18.4.1 Application
IED
IEC05000663 V2 EN-US
Figure 192:
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 fiber optic LON bus is implemented using either glass core or plastic core fiber optic cables.
Railway application RER670
Application manual
Quality expander block in ACT
The quality expander function is intended for monitoring purposes, not for being used in a
logic controlling the behaviour of the protection or control functions in the IED. The
function outputs are updated once every second and, therefore, do not reflect the quality
bits in real time.
Station HSI
MicroSCADA
Star coupler
RER 111
IED
Example of LON communication structure for a substation automation system
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IEC16000073-1-en.vsdx
Control Center
Gateway
IED
IEC05000663-1-en.vsd
Section 18
Station communication
IP14420-1 v1
IP14863-1 v1
M14804-3 v6
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