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7.2.1
IEC 61850 interface in the protection relay
LN
GOOSE
Send
Communication handler
IEC 61850 protocol
Commands
Event
handler
Event
queue
Command / IN / OUT interface AF part
GOOSE
Send
GOOSE
Receive
FBs
with
monitoring
and
commands
FBs
with
monitoring
only
GOOSE interf.
FB
AFL
LN
part
FB
AFL
LN
part
FB
AFL
LN
part
LN
GOOSE
Send
FBs
GOOSE
Receive
FBs
GOOSE
Receive
SMV
Send
SMV
Receive
SMV
interface
FB
SMVSENDER
FBs
GOOSE
Receive
FBs
SMV
Monitoring
GUID-8283BA4D-A196-4637-83F3-89C1D122732B V1 EN
Figure 75:
IEC 61850 communication interface principle
IEC 61850 provides a method for identifying all signals that belong to a function.
These signals are identified through the logical nodes representing the functions. All
signal information for commands and monitoring are available in logical nodes.
Whenever a function block is instantiated in the Application Configuration tool,
PCM600 automatically generates the corresponding logical node data.
7.2.1.1
GOOSE data exchange
The IEC 61850 protocol supports a method to directly exchange data between two or
more devices (IEDs). This method is described in the IEC 61850-7-2 clause 15.
The concept is based on sending a multicast over the Ethernet. Whoever needs the
information, detects the telegram by its source address, reads the telegram and handles
it. The telegrams are multicast sent and not acknowledged by the receiver.
1MRS757810 C
Section 7
IEC 61850 communication engineering
REC615 and RER615
113
Engineering Manual