Operation Principle - ABB REG650 Technical Manual

Section 16
Basic IED functions
16.15.4
518
Name Type
IPPackRecPoll INTEGER
IPPackDisc INTEGER
NonIPPackRecNorm INTEGER
NonIPPackRecPoll INTEGER
NonIPPackDisc INTEGER

Operation principle

The Denial of service functions (DOSLAN1 and DOSFRNT) measures the IED
load from communication and, if necessary, limit it for not jeopardizing the IEDs
control and protection functionality due to high CPU load. The function has the
following outputs:
• LINKUP indicates the Ethernet link status
• WARNING indicates that communication (frame rate) is higher than normal
• ALARM indicates that the IED limits communication
Values (Range) Unit
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1MRK 502 034-UEN -
Description
Number of IP packets
received in polled mode
Number of IP packets
discarded
Number of non IP
packets received in
normal mode
Number of non IP
packets received in
polled mode
Number of non IP
packets discarded
Technical Manual