APARIAN A-DNP3R, Руководство пользователя

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DNP3 Operation
Document No. D109-010 Page 73 of 108
Revision 1.15
5.4.1.5. SELECTING THE UNSOLICITED EVENT TRIGGERS
The Event triggers can be used by the DNP3 Router (in Outstation Mode) to limited the
amount of individual unsolicited responses sent to the DNP3 Master. To reduce traffic the
user can set limits which once reached will only send an unsolicited response.
Figure 5.15 – Selecting Event Triggers
5.4.2. M
ASTER
E
VENT
U
NLOADING
The DNP3 Router in Master mode, can extract or receive DNP3 events from various DNP3
Outstations.
The Module does not provide priority to unloading events, it cycles through the classes and
empties all the buffers before restarting.
The setup and extracting of DNP3 events from DNP3 outstations is explained in section 3.6.2.
This section will focus on the event unloading from the DNP3 Router into a Logix Controller.
The Event unload order is such to unload the oldest event first. Events are unloaded into a
Logix UDT array. This is a circular buffer arrangement where the DNP3 Master will start writing
at array index 0 and increment the array index each time a new event is written into the Logix
Controller Master Event Tag array. Events that are not processed in the Logix Event Buffer
Array will be overwritten. This Master Event Index (which shows the index to which the next
event will be written) can be found in the Logix Input Assembly as well as the General Status
page of the module in Slate.
NOTE : Downloading updated configuration to the DNP3 Module resets the
Event Buffer Index to zero.