Data Class:
the point Data Class attribute affects the way the data is
reported externally from the Universal Hub. If a point configuration has
a point Data Class other than Local, changes will be reported to the
SCADA Master in the indicated DNP3 data class. As per DNP3 Standard
requirements, any data configured for Class 1, 2, 3 is also returned in
response to a Class 0 poll request.
If a point configuration has a point Data Class of Local it is not available
to the SCADA Master through the Class 0, 1, 2, 3 mechanisms. Points
configured as Local are accessible via a DNP3 "Level 3" read request.
Valid Point Data Class values are Local, Class 0, Class 1, Class 2 and
Class 3.
Value Deadband:
the Value Deadband attribute is used to detect
changes on an analogue input point. A change exceeding the
deviation specified in this field will result in a DNP3 event to be
generated, subject to the point being configured in a DNP3 event class
(1, 2 or 3).
The value specified is an absolute value after scaling (integer or
engineering float). The default setting is 10.
Scaling:
Integer and Engineering Scale
settings define the scale of how
the device’s built
-in 12-bit ADC value (Zero and Full scale) is
corresponding to the actual analogue input value as an Integer (16-bit
or 32-bit) point or an Engineering Floating point. When properly defined,
DNP3 master will see the real analogue input values in the analogue
input points.
Counter
This section is used to set up DNP3 points for Pulse Counters. The two Digital
Inputs on Universal Hub Base Model can be used as high-speed pulse
counters when configured, and are individually configurable as shown
below:
