Hitachi Relion 670 Series Applications Manual page 369

1MRK506375-UEN Rev. N
Section 18
18.1 Communication protocols
Each IED is provided with several communication interfaces enabling it to connect to one or many
substation level systems or equipment, either on the Substation Automation (SA) bus or Substation
Monitoring (SM) bus.
Available communication protocols are:
• IEC 61850-8-1 communication protocol
• IEC/UCA 61850-9-2LE communication protocol
• LON communication protocol
• SPA communication protocol
• IEC 60870-5-103 communication protocol
• Syslog (RFC 5424) standard
Several protocols can be combined in the same IED.
18.2 IEC 61850-8-1 communication protocol
18.2.1 Application IEC 61850-8-1
IEC 61850-8-1 communication protocol allows vertical communication to HSI clients and allows
horizontal communication between two or more intelligent electronic devices (IEDs) from one or
several vendors to exchange information and to use it in the performance of their functions and for
correct co-operation.
GOOSE (Generic Object Oriented Substation Event), which is a part of IEC 61850–8–1 standard,
allows the IEDs to communicate state and control information amongst themselves, using a publish-
subscribe mechanism. That is, upon detecting an event, the IED(s) use a multi-cast transmission to
notify those devices that have registered to receive the data. An IED can, by publishing a GOOSE
message, report its status. It can also request a control action to be directed at any device in the
network.
Figure 182
the interface to the substation LAN. The LAN itself is left to the system integrator.
Railway application RER670
Application manual
Station communication
The LPHD.PhyHealth reflects the physical health of the IED. The status is set to Alarm
when there is an internal failure in the IED or Warning if any active communication link
fails.
shows the topology of an IEC 61850–8–1 configuration. IEC 61850–8–1 specifies only
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Section 18
Station communication
M14815-3 v16
IP14616-1 v2
IP14865-1 v2
M13912-3 v4
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