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About This Guide

This guide is the primary documentation for Step Function I/O's DNP3 library. Here you'll find:

  • Which parts of DNP3 the library implements
  • How to use the library's Application Programming Interface (API)
  • How the API maps to DNP3 concepts
  • How to get pre-built binary distributions of the library for supported languages
  • How to build the core Rust library and bindings from source

Language-specific API documentation is available via the links below:

Example programs are also available in the source repository that demonstrate the most common API features for each language.

IEEE-1815​

While this guide covers many DNP3 concepts, it is not a replacement for the DNP3 standard. If you plan to develop a product that uses DNP3, a copy of the standard is indispensable. Purchase your copy from the DNP3 Users Group or IEEE.

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tip

If you join the user group to get your copy of the standard you'll also get access to additional valuable documentation along with a forum.