pyprofibus - PROFIBUS-DP stack

https://bues.ch/a/profibus <https://bues.ch/a/profibus>_

pyprofibus is an Open Source PROFIBUS-DP <https://en.wikipedia.org/wiki/Profibus>_ stack written in Python.

Hardware

pyprofibus is able to run on any machine that supports Python. It also runs on embedded machines such as the Raspberry Pi <https://en.wikipedia.org/wiki/Raspberry_Pi>_ or even tiny microcontrollers such as the ESP32 <https://en.wikipedia.org/wiki/ESP32>_ (Micropython).

Please read the hardware documentation for more information:

pyprofibus hardware documentation <doc/hardware.rst>_

Speed / Baud rate

The achievable Profibus-DP speed depends on the hardware that it runs on and what kind of serial transceiver is used. There is no software side artificial limit.

Please see the pyprofibus hardware documentation <doc/hardware.rst>_

Examples

pyprofibus comes with a couple of examples that can teach you how to use pyprofibus in your project.

• Example that runs pyprofibus without any hardware. This example can be used to play around with pyprofibus.

  • examples/example_dummy_oneslave.py
  • examples/example_dummy_oneslave.conf
  • examples/example_dummy_twoslaves.py
  • examples/example_dummy_twoslaves.conf
  • examples/example_dummy_inputonly.py
  • examples/example_dummy_inputonly.conf

• Example that runs pyprofibus as master connected to an ET200S as slave.

  • examples/example_et200s.py
  • examples/example_et200s.conf

• Example that runs pyprofibus as master connected to an S7-315-2DP as slave.

  • examples/example_s7-315-2dp.py
  • examples/example_s7-315-2dp.conf

Dependencies

• Python <https://www.python.org/>_ 3.5 or later.
• Or alternatively Micropython <https://micropython.org/>. Please see the pyprofibus Micropython help <micropython/README.rst> for more information.

License

Copyright (c) 2013-2022 Michael Buesch [email protected]

Licensed under the terms of the GNU General Public License version 2, or (at your option) any later version.