Rockwell Automation Publication 2080-UM002M-EN-E - April 2022 111
Chapter 6 Micro870 Controller Distributed Network Protocol
Data-Set Descriptors Configuration Parameters
These parameters are used to construct Data-Set Descriptors objects.
The Read and Enable Event allows assignment of characteristics to the
Descriptor.
• Read – set if Data-Set is readable.
• Enable Event – set if outstation generates a Data-Set event.
Event Class – With the Enable Event checked, the event class is displayed to
allow assignment of Event Class to this Descriptor.
•1 – Class 1
•2 – Class 2
•3 – Class 3
Trigger Event: Define and set this parameter to generate an event by the ladder
logic to generate timed events. Once this parameter is set by the ladder logic or
communications, the controller clears it automatically after generating an
event at the end of scan.
Disable Change Event: Define and set this parameter to suppress the events
generated by any Event Occurrence Condition.
Event Occurrence Condition: The conditions of Data-Set Event for each Data-
Set Descriptor can be configured by Data-Set Event Occurrence Condition 1/2/
3/4 in the DNP3 Data-Set Descriptors Object. When one of the values that are
pointing to the Event Occurrence Condition 1/2/3/4 are changed or the criteria
are met, the controller generates a Data-Set Event, retrievable using the object
Group 88, Variation 1.
The following table shows the supported conditions for Point Addressing
under Event Occurrence Conditions.
To Next Page
Loading...
Need help?
General
