RUT976 DNP3: Difference between revisions

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Revision as of 15:58, 29 October 2024

RUT976 Services section > RUT976 DNP3

The information in this page is updated in accordance with firmware version RUT9M_R_00.07.10.2.

Summary

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 RUT976 devices.

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

DNP3 Parameters

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

required value index group type
Uptime 0 Counter
Signal Strength 1 Octet String
Modem temperature (in 0.1 °C) 2 Octet String
Hostname 3 Octet String
Operator 4 Octet String
Router Serial Number 5 Octet String
LAN MAC Address 6 Octet String
Router name 7 Octet String
Currently active SIM card slot 8 Octet String
Network state 9 Octet String
Connection state 10 Octet String
Mobile data received today (SIM1) 20 Counter
Mobile data sent today (SIM1) 21 Counter
Mobile data received this week (SIM1) 22 Counter
Mobile data sent this week (SIM1) 23 Counter
Mobile data received this month (SIM1) 24 Counter
Mobile data sent this month (SIM1) 25 Counter
Mobile data received last 24h (SIM1) 26 Counter
Mobile data sent last 24h (SIM1) 27 Counter
Mobile data received last week (SIM1) 28 Counter
Mobile data sent last week (SIM1) 29 Counter
Mobile data received last month (SIM1) 30 Counter
Mobile data sent last month (SIM1) 31 Counter
Mobile data received today (SIM2) 32 Counter
Mobile data sent today (SIM2) 33 Counter
Mobile data received this week (SIM2) 34 Counter
Mobile data sent this week (SIM2) 35 Counter
Mobile data received this month (SIM2) 36 Counter
Mobile data sent this month (SIM2) 37 Counter
Mobile data received last 24h (SIM2) 38 Counter
Mobile data sent last 24h (SIM2) 39 Counter
Mobile data received last week (SIM2) 40 Counter
Mobile data sent last week (SIM2) 41 Counter
Mobile data received last month (SIM2) 42 Counter
Mobile data sent last month (SIM2) 43 Counter
GPS Fix Time 50 Octet String
GPS Longitude Coordinate 51 Octet String
GPS Latitude Coordinate 52 Octet String
GPS Altitude Coordinate 53 Octet String
GPS Angle 54 Octet String
GPS Speed 55 Octet String
GPS Accuracy 56 Octet String
GPS Satellite count 57 Octet String

External Modem Parameters

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

required value index group type
Modem VID and PID 100 + 50 * modem_number Octet String
Mobile data received today (SIM1) 101 + 50 * modem_number Counter
Mobile data sent today (SIM1) 102 + 50 * modem_number Counter
Mobile data received this week (SIM1) 103 + 50 * modem_number Counter
Mobile data sent this week (SIM1) 104 + 50 * modem_number Counter
Mobile data received this month (SIM1) 105 + 50 * modem_number Counter
Mobile data sent this month (SIM1) 106 + 50 * modem_number Counter
Mobile data received last 24h (SIM1) 107 + 50 * modem_number Counter
Mobile data sent last 24h (SIM1) 108 + 50 * modem_number Counter
Mobile data received last week (SIM1) 109 + 50 * modem_number Counter
Mobile data sent last week (SIM1) 110 + 50 * modem_number Counter
Mobile data received last month (SIM1) 111 + 50 * modem_number Counter
Mobile data sent last month (SIM1) 112 + 50 * modem_number Counter
Mobile data received today (SIM2) 113 + 50 * modem_number Counter
Mobile data sent today (SIM2) 114 + 50 * modem_number Counter
Mobile data received this week (SIM2) 115 + 50 * modem_number Counter
Mobile data sent this week (SIM2) 116 + 50 * modem_number Counter
Mobile data received this month (SIM2) 117 + 50 * modem_number Counter
Mobile data sent this month (SIM2) 118 + 50 * modem_number Counter
Mobile data received last 24h (SIM2) 119 + 50 * modem_number Counter
Mobile data sent last 24h (SIM2) 120 + 50 * modem_number Counter
Mobile data received last week (SIM2) 121 + 50 * modem_number Counter
Mobile data sent last week (SIM2) 122 + 50 * modem_number Counter
Mobile data received last month (SIM2) 123 + 50 * modem_number Counter
Mobile data sent last month (SIM2) 124 + 50 * modem_number Counter
Modem temperature (in 0.1 °C) 125 + 50 * modem_number Octet String
Operator 126 + 50 * modem_number Octet String
Network state 127 + 50 * modem_number Octet String
Connection state 128 + 50 * modem_number Octet String
Signal Strength 129 + 50 * modem_number Octet String

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.

DNP3 TCP Client

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.

Status

This section displays DNP3 Clients status information.

DNP3 TCP Client Configuration

The TCP Client Configuration section is used to configure the parameters of a DNP3 Outstation that the Client (this RUT976 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:

Field Value Description
Enable off | on; default: off Turns communication with the outstation device on or off.
Name string; default: none Name of the TCP client, used for easier management purposes.
IP address ip; default: none DNP3 Outstation IP address.
Port integer [0..65535]; default: none DNP3 Outstation Port.
Local Address integer [0..65535]; default: none Clients Link-Layer address.
Remote Address integer [0..65535]; default: none Outstation Link-Layer address.
Period integer [1..60]; default: none Interval at which requests are sent to the outstation device.
Timeout integer [1..60]; default: none Maximum response wait time.
Save to flash off | on; default: off When enabled, stores request information in device flash.

Requests Configuration

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:

Field Value Description
Name string; default: Unnamed Name of this Request Configuration. Used for easier management purposes.
Start Index integer [0..65535]; default: none Start index of the data subarray.
End Index integer [0..65535]; default: none End index of the data subarray.
Data Type Binary | Double Binary | Counter | Frozen Counter | Analog | Octet String | Analog Output Status | Binary Output Status; default: Binary Data object group of the requested index(-es).
Enabled off | on; default: off Turns the request on or off.
Actions - interactive button Deletes request configuration.

Request Configuration Testing

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:

DNP3 Serial Client

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.

Status

This section displays DNP3 Clients status information.

DNP3 Serial Client Configuration

The Serial Client Configuration section is used to configure the parameters of a DNP3 Outstation that the Client (this RUT976 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:

Field Value Description
Enable off | on; default: off Turns communication with the outstation device on or off.
Name string; default: none Name of the Serial client, used for easier management purposes.
Serial port RS232 | RS485 | USB RS232 interface; default: RS232 Selects which serial port to use for communication.
Baud rate (RS485) integer [300..230400]; default:9600 Data rate for serial data transmission (in bits per second (bps)).
Baud rate (RS232) integer [300..115200]; default:9600 Data rate for serial data transmission (in bits per second (bps)).
Baud rate (USB) integer [300..4000000]; default:9600 Data rate for serial data transmission (in bits per second (bps)).
Data bits 5 | 6 | 7 |8; default: 8 Number of data bits for each character.
Stop bits 1| 2; default: 1 Stop bits sent at the end of every character allow the receiving signal hardware to detect the end of a character and to resynchronise with the character stream. Electronic devices usually use one stop bit. Two stop bits are required if slow electromechanical devices are used.
Parity Even | Odd| Mark | Space | None; default: None In serial transmission, parity is a method of detecting errors. An extra data bit is sent with each data character, arranged so that the number of 1 bits in each character, including the parity bit, is always odd or always even. If a byte is received with the wrong number of 1s, then it must have been corrupted. However, an even number of errors can pass the parity check.
  • None (N) - no parity method is used.
  • Odd (O) - the parity bit is set so that the number of "logical ones (1s)" has to be odd.
  • Even (E) - the parity bit is set so that the number of "logical ones (1s)" has to be even.
  • Space (s) - the parity bit will always be a binary 0.
  • Mark (M) - the parity bit will always be a binary 1.
Flow control None | RTS/CTS | Xon/Xoff; default: None In many circumstances a transmitter might be able to send data faster than the receiver is able to process it. To cope with this, serial lines often incorporate a "handshaking" method, usually distinguished between hardware and software handshaking.
  • RTS/CTS - hardware handshaking. RTS and CTS are turned OFF and ON from alternate ends to control data flow, for instance when a buffer is almost full.
  • Xon/Xoff - software handshaking. The Xon and Xoff characters are sent by the receiver to the sender to control when the sender will send data, i.e., these characters go in the opposite direction to the data being sent. The circuit starts in the "sending allowed" state. When the receiver's buffers approach capacity, the receiver sends the Xoff character to tell the sender to stop sending data. Later, after the receiver has emptied its buffers, it sends an Xon character to tell the sender to resume transmission.
RS485: Full Duplex off | on; default: off Enables RS485 full duplex.
Open delay integer [0..10000]; default: none Some physical layers need time to 'settle' so that the first tx isn't lost.
Local Address integer [0..65535]; default: none Client Link-Layer address.
Remote Address integer [0..65535]; default: none Outstation Link-Layer address.
Period integer [1..60]; default: none Interval at which requests are sent to the outstation device.
Timeout integer [1..60]; default: none Maximum response wait time.
Save to flash off | on; default: off When enabled, stores request information in device flash.

Requests Configuration

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:

Field Value Description
Name string; default: Unnamed Name of this Request Configuration. Used for easier management purposes.
Start Index integer [0..65535]; default: none Start index of the data subarray.
End Index integer [0..65535]; default: none End index of the data subarray.
Data Type Binary | Double Binary | Counter | Frozen Counter | Analog | Octet String | Analog Output Status | Binary Output Status; default: Binary Data object group of the requested index(-es).
Enabled off | on; default: off Turns the request on or off.
Actions - interactive button Deletes request configuration.

Request Configuration Testing

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:

DNP3 Outstation

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 window section and the table below provides information on the fields contained in that window:

Field Value Description
Enable off | on; default: off Turns DNP3 Outstation on or off.
Local Address integer [0..65535]; default: none Outstation Link-Layer address.
Remote Address integer [0..65535]; default: none Client Link-Layer address.
Unsolicited enabled off | on; default: none Enables the transmission of unsolicited messages.
Protocol TCP | UDP; default: TCP Protocol used for DNP3 communications.
Port integer [0..65535]; default: none Port used for DNP3 communications.
UDP response address ipv4; default: none UDP response address.
UDP response port integer [0..65535]; default: none UDP response port.
Allow Remote Access off | on; default: off Allows remote DNP3 connections by adding an exception to the device's firewall on the port specified in the field above.

DNP3 Serial Outstation

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.

Status

This section displays DNP3 Clients status information.

DNP3 Serial Outstation Configuration

The DNP3 Serial Outstation Configuration page is used to configure the device as a DNP3 RTU Outstation. 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 outstation instance, enter the instance name, select serial interface and click the 'Add' button.

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

RS Device DNP3 Outstation Configuration

The RS Device DNP3 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:

Field Value Description
Enable off | on; default: off Turns communication with the outstation device on or off.
Name string; default: none Name of the Serial outstation, used for easier management purposes.
Serial port RS232 | RS485 | USB RS232 interface; default: RS232 Selects which serial port to use for communication.
Baud rate (RS485) integer [300..230400]; default:9600 Data rate for serial data transmission (in bits per second (bps)).
Baud rate (RS232) integer [300..115200]; default:9600 Data rate for serial data transmission (in bits per second (bps)).
Baud rate (USB) integer [300..4000000]; default:9600 Data rate for serial data transmission (in bits per second (bps)).
Data bits 5 | 6 | 7 |8; default: 8 Number of data bits for each character.
Stop bits 1| 2; default: 1 Stop bits sent at the end of every character allow the receiving signal hardware to detect the end of a character and to resynchronise with the character stream. Electronic devices usually use one stop bit. Two stop bits are required if slow electromechanical devices are used.
Parity Even | Odd| Mark | Space | None; default: None In serial transmission, parity is a method of detecting errors. An extra data bit is sent with each data character, arranged so that the number of 1 bits in each character, including the parity bit, is always odd or always even. If a byte is received with the wrong number of 1s, then it must have been corrupted. However, an even number of errors can pass the parity check.
  • None (N) - no parity method is used.
  • Odd (O) - the parity bit is set so that the number of "logical ones (1s)" has to be odd.
  • Even (E) - the parity bit is set so that the number of "logical ones (1s)" has to be even.
  • Space (s) - the parity bit will always be a binary 0.
  • Mark (M) - the parity bit will always be a binary 1.
Flow control None | RTS/CTS | Xon/Xoff; default: None In many circumstances a transmitter might be able to send data faster than the receiver is able to process it. To cope with this, serial lines often incorporate a "handshaking" method, usually distinguished between hardware and software handshaking.
  • RTS/CTS - hardware handshaking. RTS and CTS are turned OFF and ON from alternate ends to control data flow, for instance when a buffer is almost full.
  • Xon/Xoff - software handshaking. The Xon and Xoff characters are sent by the receiver to the sender to control when the sender will send data, i.e., these characters go in the opposite direction to the data being sent. The circuit starts in the "sending allowed" state. When the receiver's buffers approach capacity, the receiver sends the Xoff character to tell the sender to stop sending data. Later, after the receiver has emptied its buffers, it sends an Xon character to tell the sender to resume transmission.
Local Address integer [0..65535]; default: none Outstation Link-Layer address.
Remote Address integer [0..65535]; default: none Client Link-Layer address.
Unsolicited enabled off | on; default: none Enables the transmission of unsolicited messages.
RS485: Full Duplex off | on; default: off Enables RS485 full duplex.
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