DNP3.0 Reference Manual
Manual#: 851-000140
Version 2.0 –09/9/2022 Page 5 of 49
Relay 1 operates independently, as it’s not possible to configure the latching functionality of the relay.
Instead, relay 1 will always trip on a reboot/power down, and close when the PQube 3 locks onto a
frequency and is ready to start measurement.
The pulse functionality is presently not supported.
The supported relay numbers are documented accordingly in the “Binary Output Point Map” section.
Analog Inputs: Group 30, Variations 1-5.
The majority of PQube 3 objects are Analog Input Group 30 objects in the DNP3.0 object catalog. The
PQube 3 maps meters to Analog Object points, in similar order to the modbus register map order.
Meters are sampled and updated internally in the PQube 3 at 2 Hz. Analog objects are updated in
DNP3.0 at the requested outstation polling rate or at any object change update rates.
The PQube 3 supports all object variations but recommends Variation 5 (Single Precision Floating Point
Value) for Analog Objects, since most PQube 3 meter values are floating point numbers.
The PQube 3 analog object point list is documented accordingly in the “Analog Input Point Map” section.
Analog Input Event: Group 31, Variations 1-8.
When an analog input exceeds a Group 34 Analog Input Reporting Deadband, a Group 31 Analog Input
unsolicited event (Group 31) may be sent from the outstation.
Analog Input Reporting Deadband: Group 34, Variations 1-3.
A reporting deadband may be assigned to each analog input point. When the point value exceeds the
deadband (relative to its last measured value), an Analog Input Event will be sent from the outstation.
Deadband values of 0 will send events on any change in the analog input point. See the IEEE 1815-2010
specification for more details on analog input reporting bands.
Class Objects: Group 60, Variation 1, Class 0 data
All objects are by default placed in Class 0 at startup. Objects may be reassigned dynamically after
power on by the master station.
File Transfer Objects: Group 70
If the DNP3 Enable File Transfer tag is on in the Setup.ini, then File Transfer objects are supported for
loading and uploading Setup.ini files, and PQube 3 Event and Trend files.
Data Set and Dataset Descriptors: Group 83 and Group 86
PQube 3 internal events and trends are notified to the master outstation as file paths in Group 83
Dataset Objects. The last generated Event, Daily, Weekly and Monthly Trend is sent as a list of file paths
to the content files in Group 83 objects.
Octet String Objects: Group 110
PQube 3 static configuration settings (power configuration, etc), are sent as Group 110 Octet String
Objects.
