Point Types
A device that supports the 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. Point IDs must be unique within a data group (case insensitive).
| Point Type | Point Name | Description |
|---|---|---|
| Analog | AI | Analog Input |
| Analog | AID | Analog Input Deadband |
| Analog | AIF | Analog Input Frozen |
| Analog | AO | Analog Output |
| Binary | BI | Binary Input |
| Binary | BI2 | Double-bit Binary Input |
| Binary | BO | Binary Output |
| Counter | CT | Counter |
| Counter | CTF | Counter Frozen |
| IIN | IIN | Internal Indications |
| String | STR | String |
