Section 3 1MAC306892-MB C
Vendor-specific implementation
22 RER620
Communication Protocol Manual
3.6.17 OvInd NoGI IOA
• Min: 0
• Max: 255/65535/16777215
• Default: 60000
The protective relay generates an overflow indication event with this address if the lost
event is not included in any of the interrogation groups. Based on this information, the
client knows that the interrogation is not needed because the missed data is not updated
anyway.
• If OvInd NoGI IOA is set to zero, the overflow indication is disabled for the points
that are not part of some interrogation groups.
• If OvInd NoGI IOA is set to same value as OvInd IOA, only one indication event is
generated regardless whether the point is included in the interrogation group or not.
• The maximum value depends on the IOA length setting.
3.6.18 Event order
• Accurate time (default)
• Preserve chronology
The protective relay has accurate time stamps for every data attribute which is part of an
IEC 61850 dataset. Most of them are updated in a chronological manner. However, there
may be some special data items that do not have system-level timestamp available, such
as circuit breaker control return indication. If the client needs strictly chronological event
buffering, Event order should be set to "Preserve chronology". If the events are collected
to a SCADA system, which is able to buffer and sort the received events at the system
level, it is recommended to use "Accurate time" instead.
3.6.19 Selection time-out
• Min: 1
•Max: 65
• Default: 30
• Unit: seconds
This is the maximum time between the Select and Execute commands for the circuit
breaker controlling in the select-before-operate mode. The controllable object's IEC
61850-level Selection time-out parameter is not used when the control is made by the IEC
60870-5-101/104 client.
Applicable only if Overflow mode is set to "Oldest+Indication".
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