Introduction - If you have any usage issues, please Google them yourself
FreeModbus is an open source Modbus protocol stack, but only from the machine open source, the host source code is required to charge. At the same time the Internet did not find a better open source Modbus host protocol stack, so it developed this support host mode FreeModbus protocol stack. This version of FreeModbus version number changed to V1.6, features are as follows:
The new host source code and the original slave style and interface to keep in line;
Support the host and slave in the same protocol stack to run;
Support real-time operating system and bare metal transplant;
For the application to provide a variety of request mode, the user can choose to block or non-blocking mode, custom timeout, etc., to facilitate the application layer flexible call;
Supports all commonly used Modbus methods.