F.7
Date Code 20170814
Instruction Manual
SEL-700G Relay
IEC 61850 Communications
IEC 61850 Operation
Similarly, for unbuffered reports, connected clients can edit the report
parameters shown in Table F.5.
For Buffered Reports, only one client can enable the RptEna attribute of the
BRCB at a time resulting in a client association for that BRCB. Once enabled,
the associated client has exclusive access to the BRCB until the connection is
closed or the client disables the RptEna attribute. Once enabled, all
unassociated clients have read only access to the BRCB.
For Unbuffered Reports, as many as six (6) clients can enable the RptEna
attribute of the URCB at a time, resulting in multiple client associations for
that URCB. Once enabled, each client has independent access to a copy of that
URCB. The Resv attribute is writable, however, the SEL-700G does not
support reservations. Writing any field of the URCB causes the client to
obtain their own copy of the URCB-in essence, acquiring a reservation.
Reports are serviced at a 2 Hz rate. The client can set the IntgPd to any value
with a resolution of 1 ms. However, the integrity report is only sent when the
period has been detected as having expired. The report service rate of 2 Hz
results in a report being sent within 500 ms of expiration of the IntgPd. The
new IntgPd begins at the time that the current report is serviced.
Table F.5
Unbuffered Report Control Block Client Access
RCB Attribute
User changeable
(Report Disabled)
User changeable
(Report Enabled)
Default Values
RptId
YES
URep01–URep06
RptEna
YES
YES
FALSE
Resv
YES
FALSE
OptFlds
YES
seqNum
timeStamp
dataSet
configRef
reasonCode
dataRef
BufTm
YES
250
TrgOps
YES
dchg
qchg
IntgPd
YES
0
GI
YES
a
a
Exhibits a pulse behavior. Write a one to issue the command. Once command is accepted, it
returns to zero. Always read as zero.
0
Содержание SEL-700G Series
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