OTD500 DNP3: Difference between revisions
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Latest revision as of 13:25, 3 December 2024
Main Page > OTD Outdoor routers > OTD500 > OTD500 Manual > OTD500 WebUI > OTD500 Services section > OTD500 DNP3The information in this page is updated in accordance with firmware version OTD500_R_00.07.11.3.
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 OTD500 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 |
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 OTD500 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 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. |