Hitachi Relion 670 Series Communication Protocol Manual page 31
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- Applications manual (438 pages) ,
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1MRK511391-UUS Rev. L
generate the Enable Unsolicited Response message, in which case they must be enabled here. Keep the
value to 0 for all other purposes.
UROfflineRetry specifies the maximum number of unsolicited retries before changing to the offline retry
period. Up to 65535 retries can be specified. Set UROfflRetryDel to the same value as URRetryDelay to
define an infinite number of retries.
tURRetryDelay specifies in seconds the time to delay after an unsolicited confirm timeout before retrying
the unsolicited response.
tUROfflRtryDel specifies in seconds the time to delay after an unsolicited timeout before retrying the
unsolicited response if UROfflineRetry has been attempted. To disable retries after UROfflineRetry, set
this value to the maximum value of a stack timer: 31 days. This limits the retries to one in every 31 days.
UREvCntThold1 If unsolicited responses are enabled, this parameter specifies the maximum number of
events in class 1 to be allowed before an unsolicited response is generated.
tUREvBufTout1 If unsolicited responses are enabled (UREnable), this parameter specifies the maximum
amount of time in seconds before an unsolicited response is generated after an event in class 1 has
been received.
UREvCntThold2 If unsolicited responses are enabled (UREnable), this parameter specifies the maximum
number of allowed class 2 events before an unsolicited response is generated.
tUREvBufTout2 If unsolicited responses are enabled (UREnable), this parameter specifies the maximum
amount of time in seconds before an unsolicited response is generated after an event in class 2 has
been received.
UREvCntThold3 If unsolicited responses are enabled (UREnable), this parameter specifies the maximum
number of allowed class 3 events before an unsolicited response will be generated.
tUREvBufTout3 If unsolicited responses are enabled (UREnable), this parameter specifies the maximum
amount of time in seconds before an unsolicited response is generated after an event in class 3 has
been received .
DelOldBufFull If this parameter is set to 1, the event with the earliest timeStamp is deleted when a new
event is added to the full event queue.
ExtTimeFormat 0 = LocalTime. 1 = UTC.
DNPToSetTime determines if time synch messages received for this master session (slave) are allowed
to set the local time in the IED.
tSynchTimeout sets the periodicity for time requests. That is, it defines how long after a succeeded time
synch message from the master, the IIN.4 bit should be set.
TsyncReqAfTout determines if the stack should start with the IIN.4 bit set.
Averag3TimeReq determines if the IED needs three time synch messages to set the time. If set, the IIN.4
bit is high until three time synch messages are received. The average of the two best messages are used
to set the time.
PairedPoint enables the Object12 Close request on an even-index point to access the next-index point.
tSelectTimeout specifies the maximum amount of time that a select remains valid before the
corresponding operate is received.
DNP, 670 series
Communication protocol manual
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Section 4
DNP3 parameters
25
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