ProSoft Technology PTQ-104S - Manual (Page 86)

Module Configuration 48TPTQ-104S Rev 1 ♦ 47TQuantum Platform
12TUser Manual 46TIEC 60870-5-104 Server for Quantum
5.6.28 Use Recent
0 = R EPORT M ULTIPLE , 1 = R EPORT S INGLE
This parameter determines how the events will be stored at the event queue and
reported to the remote Client. The 104S protocol supports event queues for each
data type that can store multiple, time-stamped events as they happen and report
those events to a remote Client. Some applications may require all events that
transpire be added to the queue and be reported. Other applications may require
only the most recent event of each IEC database point to be reported.
If this parameter is set to 0 - R EPORT M ULTIPLE (the default), events for each
configured IEC monitor-type data point will be stored in a buffer. Each monitor
point data type has its own unique buffer that can hold to 99 events. When the
events are reported to the remote Client, the buffer will be cleared and will begin
to accumulate new events as they happen, storing them until the next time they
can be reported. If the number of events that occur between reports exceed 99
for any given data type, then the oldest event entry in the queue will be deleted to
make room for the most recent event. The advantage to this setting is that, with
proper configuration, all events will be captured and reported to the Client. The
disadvantage is that the event buffers can contain high volumes of data that will
have to be transferred to the Client.
If this parameter is set to 1 - R EPORT S INGLE , only the most recent event for each
IEC database monitor point will be held in the buffer and reported to the Client.
This means that any events other than the most recent one for each point will not
be available. The advantage to this setting is that it limits the volume of event
data that may need to be transmitted to the Client to the total number of points of
all types in the IEC database. The disadvantage is that events for some points
may be lost and not reported to the Client.
Page 86 of 201 ProSoft Technology, Inc.
March 4, 2013