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Name
Type
Values (Range)
Unit
Description
NonIPPackRecNorm
INTEGER
-
-
Number of non IP
packets received in
normal mode
NonIPPackRecPoll
INTEGER
-
-
Number of non IP
packets received in
polled mode
NonIPPackDisc
INTEGER
-
-
Number of non IP
packets discarded
3.17.4
Operation principle
The denial of service functions (DOSLAN1 and DOSFRNT) measures the IED
communication load and, if necessary, limit it to avoid compromising the IEDs
control and protection functionality due to high CPU load. The function has three
outputs.
•
LINKUP indicates the Ethernet link status
•
WARNING indicates that communication (frame rate) is higher than normal
•
ALARM indicates that the IED limits communication
3.18
IEC 61850-8-1 communication protocol
3.18.1
Functionality
IEC 61850-8-1 protocol allows IEDs from different vendors to exchange information
and simplifies system engineering. Peer-to-peer communication according to
GOOSE is part of the standard. Disturbance files uploading is provided.
The event system has a rate limiter to reduce CPU load. Each channel has a quota of
10 events/second. If the quota is exceeded the event channel is blocked until the event
changes is below the quota.
3.18.2
Communication interfaces and protocols
Table 76:
Supported station communication interfaces and protocols
Protocol
Ethernet
Serial
100BASE-TX RJ-45
100BASE-FX LC
Glass fibre (ST
connector)
IEC 61850–8–1
●
●
-
● = Supported
1MRS757256 F
Section 3
Basic functions
PML630/Compact Load-Shedding Solution
109
Technical Manual
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