RUTX11 DNP3

The information in this page is updated in accordance with firmware version RUTX_R_00.07.22.1.

Distributed Network Protocol 3 (DNP3) is a set of communications protocols used between components in process automation systems. It is primarily used for communications between a client station and Remote Terminal Units (RTUs) or Intelligent Electronic Devices (IEDs).

This manual page provides an overview of the DNP3 functionality in RUTX11 devices.

Note: DNP3 is additional software that can be installed from the System → Package Manager page.

DNP3 parameters are held within indexes. The index numbers and corresponding system values are described in the table below:

If you are using an external modem on your device, use these index numbers for corresponding system values:

The modem_number of the external modem is 0 (internal modem is skipped).

To get the exact index of a parameter, use the formula in the table above. For example, the index of an external modem operator is 126. Formula is: 126 + 50 * 0.

A client in DNP3 is a component that communicates (requests data) with a single outstation via a communication channel. By default, the client list is empty. To add a new client, click the 'Add' button.

After clicking 'Add' you will be redirected to the newly added client's configuration page.

This section displays DNP3 Clients status information.

The TCP Client Configuration section is used to configure the parameters of a DNP3 Outstation that the Client (this RUTX11 device) will be querying with requests. The figure below is an example of the TCP Client Configuration and the table below provides information on the fields contained in that section:

A DNP3 request is a way of obtaining data from DNP3 Outstations. The client sends a request to an outstation specifying the function codes to be performed. The outstation then sends the requested data back to the DNP3 client.

The Request Configuration list is empty by default. To add a new Request Configuration look to the Add New Instance section. Enter a custom name into the 'New Configuration Name' field and click the 'Add' button:

The new Request Configuration should become visible in the list:

This section is used to check whether the configuration works correctly. Simply click the 'Test' button and a response should appear in the box below. The last value represents the configured request data. A successful response to a test may look something like this:

The Serial Client page is used to configure the device as a DNP3 RTU Client. DNP3 RTU (remote terminal unit) is a serial communication protocol mainly used in communication via serial interfaces.

By default, the list is empty. To add a new client instance, enter the instance name, select serial interface and click the 'Add' button.

After clicking 'Add' you will be redirected to the newly added client instance configuration page.

This section displays DNP3 Clients status information.

The Serial Client Configuration section is used to configure the parameters of a DNP3 Outstation that the Client (this RUTX11 device) will be querying with requests. The figure below is an example of the Serial Client Configuration and the table below provides information on the fields contained in that section:

A DNP3 request is a way of obtaining data from DNP3 Outstations. The client sends a request to an outstation specifying the function codes to be performed. The outstation then sends the requested data back to the DNP3 client.

The Request Configuration list is empty by default. To add a new Request Configuration look to the Add New Instance section. Enter a custom name into the 'New Configuration Name' field and click the 'Add' button:

The new Request Configuration should become visible in the list:

This section is used to check whether the configuration works correctly. Simply click the 'Test' button and a response should appear in the box below. The last value represents the configured request data. A successful response to a test may look something like this:

An outstation in DNP3 is a component that communicates with a single client via a communication channel. It makes measurements of the physical world and then sends them to a client upon request (solicited) or on its own accord (unsolicited). Occasionally a client requests that it do something by sending it a control. This provides the user with the possibility to get system parameters.

The figure below is an example of the DNP3 Outstation general window section and the table below provides information on the fields contained in that window:

Data sources transmit data from one or more data sources (can be a Modbus client, DNP3 client, M-BUS, IEC60870-5 client...) and write it to DNP3 objects.

To add new data source, press `Add` button:

Object configuration:

An outstation in DNP3 is a component that communicates with a single client via a communication channel. It makes measurements of the physical world and then sends them to a client upon request (solicited) or on its own accord (unsolicited). Occasionally a client requests that it do something by sending it a control. This provides the user with the possibility to get system parameters.

General status section displays DNP3 Outstation general status information.

The DNP3 Serial Outstation configuration section is used to configure the parameters of a Serial DNP3 Outstation that will be queried by other Client devices. The figure below is an example of the Serial Outstation Configuration and the table below provides information on the fields contained in that section. By default, the list is empty. To add a new outstation instance, enter the instance name, select serial interface and click the 'Add' button.

Data sources transmit data from one or more data sources (can be a Modbus client, DNP3 client, M-BUS, IEC60870-5 client...) and write it to DNP3 objects.

To add new data source, press `Add` button (Note: DNP3 serial outstation instance is required when creating a new instance.):

Object configuration: