Communication Protocol
PRS-7367 319
Buffer time, it is the buffer time internally prompted by the dchg (data change), qchg (quality
change), and dupd (data updating) of the rcb, in ms, with default value as 0, indicating not using
the buffer time attribute, and the maximum value is 1h.
The timer will start when the first internal prompt arrives. When timer reaches the time value, all
event messages within the buffer time are packed into one report, and submitted to the client side.
When the second change of the same signal arrives in the buffer time, the buffered report is
submitted immediately, and the timer is reseted, to start again the subsequent internal prompt
buffer.
TrgOps
Trigger option, used to filter the conditions for sending reports. PRS-7000 supports the following
trigger options:
－ Bit 1: Data change
－ Bit 2: Quality change
－ Bit 3: Data updating (the service follow-up of Ed2)
－ Bit 4: Completeness period
－ Bit 5: Total call
IntgPd
Completeness period time, to be set by the client side. After successful device enabling (RptEna =
TRUE), the timer is started immediately, and after the expiration of completeness period time, the
current values of all members in the data set associated by the report are packed and submitted.
The completeness period time set as 0 means the completeness submission function is not
enabled.
GI
Total call is launched by the client side with initiative. After the report is enabled, the client side
takes initiative to issue GI = TRUE, then the device immediately submits all data values in the
current data set.
PurgeBuf
Purge buffer. When the client side sets PurgeBuf = TRUE, all report in the IED buffer report are
purged.
When the client side modifies RptID, DataSet, BufTime, TrgOps, IntgPd, the device will
automatically set purging buffer reports, equivalent to setting PurgeBuf = TRUE.
9.4.3.3 GOOSE control block
The fast messages of the PRS-7000 series device are transmitted via GOOSE, and the
transmission characteristics of GOOSE is controlled by the GOOSE control block (GoCB). GoCB
has the following important characteristics:
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