Section 20
Station communication
20.1
Communication protocols
M14815-3 v13
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
•
LON communication protocol
•
SPA communication protocol
•
IEC 60870-5-103 communication protocol
•
DNP 3.0 communication protocol
•
C37.118 communication protocol
Several protocols can be combined in the same IED.
20.2
IEC 61850-8-1 communication protocol
IP14616-1 v2
20.2.1
Application IEC 61850-8-1
IP14865-1 v2
M13912-3 v4
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.
M13913-3 v6
Figure
shows the topology of an IEC 61850–8–1 configuration. IEC 61850–8–1
specifies only the interface to the substation LAN. The LAN itself is left to the system
integrator.
1MRK 511 401-UUS A
Section 20
Station communication
Bay control REC670 2.2 ANSI
577
Application manual
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