modbus-tk: Create Modbus app easily with Python

The project has moved to Git Hub : See https://github.com/ljean/modbus-tk

Download / Install

Current version is 0.4.3. It is available on PyPI https://pypi.python.org/pypi/modbus_tk

License

This is distributed under GNU LGPL license

Description

Make possible to write modbus TCP and RTU master and slave.

It can be used for testing purpose : It is shipped with slave simulator and a master with a web-based hmi (ok the hmi need to be improved :).

It can also be used to create any application which need to communicate over modbus. It is a full-stack implementation and is used on "real applications".

Thanks to Python and the incredible set of existing libraries, it can fit a lot of different needs : database logging, HMI, report generation ...

modbus-tk is different from pymodbus which is another implementation of the modbus stack in python.

modbus-tk tries to limit dependencies (even if it requires pyserial for Modbus RTU).

modbus-tk has no link with tkInter. tk stands for 'testkit' or 'toolkit' depending of the way you use it.

Discussion group

Please join the modbus-tk discussion group to participate

Features

• Modbus TCP support for writing masters and slaves
• Modbus RTU support for writing masters and slaves (requires pyserial)
• Can be customized with hook mechanism (simulate errors, timeouts...)
• ready-to use simulator with RPC interface
• Defines very easily your own memory blocks
• Set/Get values for any place in a memory block
• logging capability through python logging module
• Web-based HMI (requires bottle)

Feedback

Feedback is welcomed! Please enter an issue for giving your feedback.

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Other links

• pymodslave : a gui app for simulation purpose built with Qt4 and modbus-tk