SATEC PM175 Manual - Manual (Page 112)

‎Chapter 4 PAS Application Software Configuring Communication Protocols
112 Series PM175 Powermeters
Protocol Setup from the Meter Setup menu and click on the
DNP Event Setpoints tab.
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:
1. Check the “Ext” box if you wish to use the extended point
list.
2. Select a parameter group and then a desired parameter
for each event point.
3. 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.