SATEC PM174 Manual - Manual (Page 102)

Chapter 4 PAS Application Configuring Communication
102 Series PM174 Powermeters
Configuring DNP Class 0
The most common method of getting static object information
from the meter via DNP is to issue a read Class 0 request.
The PM174 allows you to configure the Class 0 response by
assigning ranges of points to be polled via Class 0 requests.
To view or change the factory-set DNP Class 0 assignments,
select Protocol Setup from the Meter Setup menu and click on
the DNP Class 0 Points tab.
The factory-set Class 0 point ranges are shown in the picture
below. To change the factory settings and build your own
Class 0 response message:
1. Select the object and variation type for a point range.
2. Specify the start point index and the number of points in
the range. Refer to the PM174 DNP3 Reference Guide for
available data points.
3. Repeat these steps for all point ranges you want to be
included into the Class 0 response.
4. Click Send to download your setup to the meter.
Configuring DNP Event Classes
The PM174 can generate object change events for any static
analog input, binary input and binary counter point when a
corresponding point either exceeds a predefined threshold, or
the point status changes. A total of 64 change event points are
available for monitoring.
Object change events are normally polled via DNP Class 1,
Class 2 or Class 3 requests. You can link any change event
point to any event class upon the event priority. Refer to the
PM174 DNP3 Reference Guide for more information on polling
event classes via DNP.