E-Mon E-PS-A-RTU-N - Manual (Page 102)

Chapter 4 Power
S O F T W A R E R E M O T E D E V I C E C O N T R O L
102 PowerSmart+ Advanced Power Quality Meter
The number of event setpoints for each static object type is specified via the DNP Options
setup (see above). Notice that the device clears all event buffers and links the default set of
static points to each event object type every time you change the number of points for any
of the objects.
To define setpoints for selected static points:
Check the “Ext” box if you wish to use the extended point list.
Select a parameter group and then a desired parameter for each event point.
For AI and BC points, select a relation and an operating threshold or a deadband to be
used for detecting events. All thresholds are specified in primary units. The following
relations are available:
Delta – a new event is generated when the absolute value of the difference between the last
reported point value and its current value exceeds the specified deadband value;
More than (over) - a new event is generated when the point value rises over the specified
threshold, and then when it returns below the threshold minus a predefined return
hysteresis – applicable for AI objects;
Less than (under) - a new event is generated when the point value drops below the
specified threshold, and then when it returns above the threshold plus a predefined return
hysteresis – applicable for AI objects.
A hysteresis for the return threshold is 0.05 Hz for frequency and 2% of the operating
threshold for all other points.
Check the “Ev On” box for the points you wish to be included into event poll reports.
In the “Ev Class” box, select the event poll class for the change event points.
Repeat these steps for all points you want to be monitored for events.
Click Send to download your setup to the meter.
Remote Device Control
This section describes online operations on the meter you can perform through
Power Software. To access device control options you should have your device
online.