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Section 7
SPA functions
7.2
7.2.1
7.2.2
34
It is possible to define which part of the EVENT function generates the events.
This can be performed individually for communication types SPAChannelMask and
LONChannelMask. For each communication type these settings are available:
•
Off
•
Channel 1-8
•
Channel 9-16
•
Channel 1-16
For LON communication, events are normally sent to station level at change. It is
also possible to set a time for cyclic sending of the events individually for each
input channel.
To protect the SA system from signals with a high change rate that can easily
saturate the EVENT function or the communication subsystems behind it, a quota
limiter is implemented. If an input creates events at a rate that completely consume
the granted quota then further events from the channel will be blocked. This block
will be removed when the input calms down and the accumulated quota reach 66%
of the maximum burst quota. The maximum burst quota per input channel is 45
events per second.
Setting guidelines
The input parameters for the Event function (EVENT) can be set individually via
the local HMI (Main Menu/Settings / IED Settings / Monitoring / Event
Function) or via the Parameter Setting Tool (PST).
EventMask (Ch_1 - 16)
The inputs can be set individually as:
•
NoEvents
•
OnSet, at pick-up of the signal
•
OnReset, at drop-out of the signal
•
OnChange, at both pick-up and drop-out of the signal
•
AutoDetect, the EVENT function makes the reporting decision (reporting
criteria for integers have no semantic, prefer to be set by the user)
LONChannelMask or SPAChannelMask
Definition of which part of the event function block that shall generate events:
•
Off
•
Channel 1-8
•
Channel 9-16
•
Channel 1-16
1MRK 511 418-UEN A
IP14841-1 v1
M12811-3 v3
M12811-5 v3
M12811-15 v2
650 series 2.2 IEC
Communication protocol manual
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