15.16.3.3 Signals
Table 527: DOSLAN1 Output signals
Name
Type Description
LINKUP BOOLEAN Ethernet link status
WARNING BOOLEAN Frame rate is higher than normal state
ALARM BOOLEAN Frame rate is higher than throttle state
15.16.3.4 Settings
The function does not have any parameters available in the local HMI or PCM600.
15.16.3.5 Monitored data
Table 528: DOSLAN1 Monitored data
Name Type Values (Range) Unit Description
State INTEGER 0=Off
1=Normal
2=Throttle
3=DiscardLow
4=DiscardAll
5=StopPoll
-
Frame rate control state
Quota INTEGER - % Quota level in percent 0-100
IPPackRecNorm INTEGER - - Number of IP packets
received in normal mode
IPPackRecPoll INTEGER - - Number of IP packets
received in polled mode
IPPackDisc INTEGER - - Number of IP packets
discarded
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
15.16.4 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:
Section 15 1MRK 511 287-UUS A
Basic IED functions
628
Technical manual
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