DNP3 Distributed Network Protocol 3 is a set of communications protocols used between components in process automation systems. Its main use is in utilities such as electric and water companies.
Usage in other industries is not common. It was developed for communications between various types of data acquisition and control equipment. It plays a crucial role in SCADA systems, where it is used by SCADA Master Stations (a.k.a. Control Centers), Remote Terminal Units (RTUs), and Intelligent Electronic Devices (IEDs).
It is primarily used for communications between a master station and RTUs or IEDs.

- quote from Wikipedia page on DNP3

Readily deployable DNP3 Outstation Server and Client Master Stack on royalty-free basis
Developed in C language and can be ported to any Microcontroller platform
Enables faster firmware development of DNP3 enabled field devices
Supports all the major Group IDs and variations

Salient Features

Written in ANSI-Standard C Source Code, under a strict corporate coding standard, and supports C++, C#
Transparent licensing scheme - No hidden costs, No deferred payments.
High performance, robust and scalable architecture
Provides a simple method for systems integrators and OEMs to utilize standard tools to implement their systems
For Linux Platform, Protocol Stack written using only POSIX-compliant system calls and libraries.
For Windows support C,C++, C# .NET Programming
Context-based event-driven model
Supports Serial, TCP IP Communication
Level 3 Compliance
Supports File Transfer ( File read, file write), Directory commands.
Supports unsolicited response, Octect String, Virtual Terminal Output
Supports "Select-Before-Operate" and "Direct-Execute" command execution modes
Support Binary Output(CROB) and Analog Output Commands, Clock time synchronization
device attributes support
support C, C++, C# languages
Supports, frozen counter input, frozen analog input Groups
Our stacks are fully compliant with "POSIX" and tested in ubuntu, feroda, Debian, QNX, Linux Embedded OS and Various Cross compiler tool chains.
Multiple Server and Client Simulation
Source Code Library allows a fast and cost efficient implementation
APIs are designed to be very easy to use and flexible

Licensing

Source Code License model:

In this License model, We deliver complete source code of the protocol implementation according to the customer specified operating system(Windows, Linux, QNX...).
Customer may embed the library into unlimited copies of Multiple end-use products for worldwide manufacturing, branding and distribution. Original equipment manufacturers choose this model. They usually have multiple products in their pipeline.

Compiled Library License model:

In this License model, We deliver Dynamic/ Static compiled library (dll / lib) of the protocol implementation according to the customer specified operating system(Windows, Linux, QNX...).
Customer may embed the library into unlimited copies of Multiple end-use products for worldwide manufacturing, branding and distribution. Original equipment manufacturers choose this model. They usually have multiple products in their pipeline.

You can also try our DNP3 Outstation Server Simulator, Client Simulator, DNP3 Windows SDK and DNP3 Linux SDK

For more details, Contact Us : Contact

Customer Quotes

Edward Li

It has been a pleasure to work with FreyrSCADA. Pricing is competitive, and most importantly,the service and delivery have allowed us to meet our design demands.Integration was seamless.
B.Tech Inc

Thanks for your professional works. It's has been very use full to us. We saved a lot of hours by using your libraries.
Active Sensors

I did not run into any issues. The port went well.Using MMPL to poll data from competitor's instruments and converting the data to be used by our battery management software.

Knowledge Base

Interoperability:

DNP3 Outstation Server Interoperability

DNP3 Master Client Interoperability

Get a free DNP3 Development Bundle

New updated Version of DNP3 Simulator & SDK (Software Development Kit) is available now.
FreyrSCADA DNP3 Development Bundle
In the Development Bundle, We included DNP3 Server & Client Simulator, Windows & Linux SDK.