is a virtual DNP3 Outstation.
The tag allows external software to access Fernhill SCADA using the DNP3 protocol.
The DNP3 Slave Outstation Tag is a virtual DNP3 Outstation.
The tag allows external software to access Fernhill SCADA using the DNP3 protocol.
The relationship between DNP3 Point Addresses and the Fernhill SCADA Tag Database is defined using the DNP3 Data Bindings File.
The DNP3 Slave Outstation Tag supports the configuration properties of the Common Core Tag, plus these properties:
| Property | Type | Version | Description |
|---|---|---|---|
| Channel | Reference | 4.17 | A reference to one of the following: |
| OutstationAddress | UINT | 4.17 | The address of the DNP3 Outstation. |
| ApplicationFragmentMaxLength | UINT | 4.17 | The maximum length, in bytes, of an application fragment sent by the outstation. The range of values allowed for this property is 384 to 2048. |
| ApplicationConfirmTimeout | TIME | 4.19 | The maximum duration the DNP3 Slave Outstation Tag will wait for confirmation of an application fragment sent by the outstation. |
| EventQueueMaxLength | UINT | 4.17 | The maximum number of events stored in the event queue. The range of values allowed for this property is 1 to 65535. |
The DNP3 Slave Outstation Tag supports the data properties of the Common Core Tag, plus these additional properties:
| Property | Type | Description |
|---|---|---|
| State | UINT | The state of the DNP3 Slave Outstation. |
| StateDescription | WSTRING[128] | The state of the DNP3 Slave Outstation as a text string. |
| DataBindingCount | UDINT | The number of valid data bindings for the DNP3 Slave Outstation. |
| DataBindingErrorCount | UDINT | The number of data bindings that contain errors. |
| EventQueueCount | UDINT | The number of events currently in the event queue. |
| InternalIndications | UINT | The Internal Indications of the DNP3 Slave Outstation. |
The State property provides information about the state of the DNP3 Slave Outstation:
| Value | Description |
|---|---|
| 0 | Initial state when the Fernhill SCADA Server starts. |
| 1 | A Channel property does not refer to a DNP3 Channel Tag. |
| 3 | The communication channel is not online. |
| 15 | The DNP3 Slave Outstation is online and ready to be scanned by a DNP3 Master. |
The DNP3 Slave Outstation Tag does not support any tag commands.
The DNP3 Slave Outstation Tag builds on the features of these tag types:
To learn about DNP3 Ethernet communication channels.
For the meaning of terms used in Fernhill SCADA.