IEC61850 Server sends GI Report before ourstanding Report with current data changes

IEC61850 Server sends GI Report before ourstanding Report with current data changes

Summary

For Unbuffered and Buffered Reports the IEC61850 Server can be configured to summarise in single Report all value changes of different attributes for BufTm period. When during the BufTm interval the same attribute (variable) changes the value for second time, or when the client requests Genneral Interrogation on this RCB, the server sends Report immidiatelly.

The Edition 1 of the IEC61850 Standard describes that Buffered Reports shall be sent before GI Report, unfortunately does not describe what should happen in case of outstanging - only one, currently open - Report (unbuffered and buffered). Our interpretation of the Standard differed from UCA Group (teststep Rp12). The Edition 2 closes this gap - in both cases the GI Report must be the last one.

Description

For Unbuffered and Buffered Reports the IEC61850 Server can be configured to summarise in single Report all value changes of different attributes for BufTm period. When during the BufTm interval the same attribute (variable) changes the value for second time, or when the client requests Genneral Interrogation on this RCB, the server sends Report immidiatelly.

The Edition 1 of the IEC61850 Standard describes that Buffered Reports shall be sent before GI Report, unfortunately does not describe what should happen in case of outstanging - only one, currently open - Report (unbuffered and buffered). Our interpretation of the Standard differed from UCA Group (teststep Rp12). The Edition 2 closes this gap - in both cases the GI Report must be the last one.

Solution

Changed order of Reports: when during BufTm period the server receives GI request from client, then the driver now first sends current Report with data changes and next GI Report.

Information

reported by KERI/KEMA certification processes of end-products using our Stack for IEC61850 Server.



Issue Number: 30466
Fixed on Date: 22.7.2013
Versions: 7.10 0 BUILD 6919

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