APARIAN A-DNP3R, Руководство пользователя

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Setup
Document No. D109-010 Page 41 of 108
Revision 1.15
NOTE: When using DNP3 Commands (e.g. Control Relay Output Block – CROB,
or Analog Outputs) events will be logged when commands are received, thus
the deadband field is not applicable.
Figure 3.35. – DNP3 Event selection
Each mapped line item will be read every 10ms from the Logix controller. If a mapped line
item is sufficiently large then the reading of all the elements in the mapped line item will be
spread over multiple Logix controller reads.
In addition to the aforementioned Event trigger mechanism, it is also possible to
trigger
events from Logix . This allows the Logix application code to control when an event should be
logged, which could be based on dynamic and individual deadbands, time intervals, other
application conditions or any combination thereof.
Logix can trigger an event by changing the state of (the previously unused) Bit7 (
EventTrigger )
of the Status byte, as shown in the example UDT below:
Figure 3.36. – DNP3 Logix Controlled Event Trigger Example