A device that supports DNP3 protocol has independently addressable data items, identified by point type and index. The point type and index are represented in a DNP3 device template file (.dtf) in the ptId element. The index within each point type can have a range from 0 – n.
The following table lists the point types used in devices that support DNP3 protocol.
For more specific information about point types, see the appropriate manufacturer-provided documentation.
Example
ptId ="AI.42" (Analog Input Index #42)
Note: The same index number can be used with different point types, so there can be an "AI.12" ptId and a "CT.12" ptId, but point IDs must be unique within a data group (case insensitive).
| Point Type | Point Name | Description |
|---|---|---|
|
Analog |
AI |
Analog Input |
|
AID |
Analog Input Deadband |
|
|
AIF |
Analog Input Frozen |
|
|
AO |
Analog Output |
|
|
Binary |
BI |
Binary Input |
|
BI2 |
Double-bit Binary Input |
|
|
BO |
Binary Output |
|
|
Counter |
CT |
Counter |
|
CTF |
Counter Frozen |
|
|
IIN |
IIN |
Internal Indications |
|
String |
STR |
String |
|
|
|