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8
Digital input point implementation
Digital points are DNP3 binary inputs (object
group 1) and binary input events (object
group 2).
Refer to the section on RCU internal
database and controls beginning on page 15
to understand how the status, events and
qualifiers for each point are generated.
Default input point mapping is DNP3 index =
RCU digital PID.
Analog input point implementation
Analog points are DNP3 analog inputs
(object group 30) and analog input events
(object group 32) for points that generate
events.
Refer to the section beginning on page 15
about RCU internal database and controls to
understand how the status, events and
qualifiers for each point are generated.
Default input point mapping is DNP3 index =
RCU analog PID.
Object flags
DNP3 object flags are generated as shown in
Table 2. Some object flags correspond to the
internal data qualifiers set out in the section
on RCU internal database and controls
beginning on page 15.
Database object flags
DNP3 object flag
ONLINE
RCU qualifier online
RESTART
RCU qualifier restart
COMMS_LOST
communications lost
REMOTE_FORCED
LOCAL_FORCED
RCU qualifier overridden
CHATTER_FILTER
ROLLOVER
OVERRANGE
DISCONTINUITY
REFERENCE_ERROR
Table 2: Object flags
DNP3 device attributes
Device attributes (object group 0) come
from the RCU database string points defined
in the RCU operating instructions
(IC1000-F320-A198-X-XXXX).
Note that RCU string points are not
supported in DNP3 in any other way.
DNP3 device attributes are mapped into RCU
string points as given in Table 3.
DNP3 device
manufacturer's
manufacturer's
product name and
246: user assigned
ID code/number
245: user assigned
location name
manufacturer's
software version
Table 3: DNP3 device attributes
Maps to
RCU qualifier
Always clear
Always clear
Always clear
Always clear
Always clear
Always clear
DNP3 device attributes
Mapping in RCU internal
database
attribute
S_PID
252: device
0
manufacturer's
name
250: device
RCU product name
1
model
2
(configurable)
Name/location
3
(configurable)
242: device
RCU software
4
Name
RCU
Name
and model
Utility asset
number
version
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