MinimalModbus 0.6 has now been released! In this release also MODBUS ASCII mode is supported.
MinimalModbus 0.5 has now been released! The speed is increased by precalculating number of bytes to read, and it has better compliance with Modbus timing requirements.
Now there is better handling of several instruments on the same serial port, especially for Windows.
MinimalModbus 0.3 has now been released! More modbus function codes are supported, and it is now fully tested with Python3. There is now an option to close the serial port after each call (useful for Windows XP etc).
Unit tests has been included in the distribution, and a dummy serial port for unit testing is provided (including recorded communication data). An example driver for Omega CN7500 process controllers is included.... read more