About this guide
This guide is the primary documentation for Step Function I/O's Modbus library. Here you'll find:
- Which parts of Modbus the library implements
- How to use the library's Application Programming Interface (API)
- How the API maps to Modbus concepts
- How to get pre-built binary distributions of the library for supported languages
- Example programs in each language to run first
The API reference for each language:
Modbus standard
This guide covers many Modbus concepts but is not a replacement for the standard. If you plan to develop a product that uses Modbus, you can get a free copy from the Modbus Organization website.
