Embedded Modbus Slave C Library

This library has been developed as a spin-off of the IEC 61131-3 bytecode 
compiler and virtual machine project (http://iec61131.wordpress.com) and 
provides a small, embedded library implementing an interface for the most 
common Modbus protocol operations.  This library is licensed under the 
Creative Commons Attribution Non-Commercial International (CC BY-NC 4.0) 
license.  For commercial use or applications, please contact library author.