How Do I Submit A Good Bug Report?

Please, don't send direct emails to Stéphane Raimbault unless you want commercial support.

Take care to read the documentation at http://libmodbus.org/.

• Be sure it's a bug before creating an issue, in doubt, post a message on https://groups.google.com/forum/#!forum/libmodbus or send an email to libmodbus@googlegroups.com

• Use a clear and descriptive title for the issue to identify

• Which version of libmodbus are you using? you can obtain this information from your package manager or by running pkg-config --modversion libmodbus. You can provide the sha1 of the commit if you have fetched the code with git.

• Which operating system are you using?

• Describe the exact steps which reproduce the problem in as many details as possible. For example, the software/equipment which runs the Modbus server, how the clients are connected (TCP, RTU, ASCII) and the source code you are using.

• Enable the debug mode, libmodbus provides a function to display the content of the Modbus messages and it's very convenient to analyze issues (http://libmodbus.org/docs/modbus_set_debug/).

Good bug reports provide right and quick fixes!