Release 0.7 (2015-07-30)

  • Faster CRC calculation by using a lookup table (thanks to Peter)
  • Handling of local echo (thanks to Luca Di Gregorio)
  • Improved behavior of dummy_serial (number of bytes to read)
  • Improved debug messages (thanks to Dino)
  • Using project setup by the cookie-cutter tool.
  • Reshuffled source files and documentation.
  • Moved source to Github from Sourceforge.
  • Moved documentation to readthedocs.org
  • Using the tox tool for testing on multiple Python versions.
  • Using Travis CI test framework
  • Using codecov.io code coverage measurement framework
  • Added support for Python 3.3 and 3.4.
  • Dropped support for Python 2.6.

Release 0.6 (2014-06-22)

  • Support for Modbus ASCII mode.

Release 0.5 (2014-03-23)

  • Precalculating number of bytes to read, in order to increase the speed.
  • Better handling of several instruments on the same serial port, especially for Windows.
  • Improved timing for better compliance with Modbus timing requirements.

Release 0.4 (2012-09-08)

  • Read and write multiple registers.
  • Read and write floating point values.
  • Read and write long integers.
  • Read and write strings.
  • Support for negative numbers.
  • Use of the Python struct module instead of own bit-tweaking internally.
  • Improved documentation.

Release 0.3.2 (2012-01-25)

  • Fine-tuned setup.py for smoother installation.
  • Improved documentation.

Release 0.3.1 (2012-01-24)

  • Improved requirements handling in setup.py
  • Adjusted MANIFEST.in not to include doc/_templates
  • Adjusted RST text formatting in README.txt

Release 0.3 (2012-01-23)

This is a major rewrite, but the API is backward compatible.

  • Extended functionality to support more Modbus function codes.
  • Option to close the serial port after each call (useful for Windows XP etc).
  • Diagnostic string output available (for support).
  • Debug mode available.
  • Improved __repr__ for Instrument instances.
  • Improved Python3 compatibility.
  • Improved validity checking for function arguments.
  • The error messages are made more informative.
  • The new example driver omegacn7500 is included.
  • Unit tests included in the distribution.
  • A dummy serial port for unit testing is provided (including recorded communication data).
  • Updated documentation.

Release 0.2 (2011-08-19)

  • Changes in how to reference the serial port.
  • Updated documentation.

Release 0.1 (2011-06-16)

  • First public release.