Pyads is a pure python implementation for Beckhoff ADS protocol. You can send typical ADS-commands like read/write over TCP/IP. No other libraries (or TwinCAT on Windows) are needed.
Twincat and ADS are developed by Beckhoff (http://www.beckhoff.de). I'm not affiliated in any way.
Pyads does not contain an ADS-router - it's designed for a direct client-server connection.
It supports Python 2.6+ and Python 3.
Installation by hand
git clone git://github.com/chwiede/pyads.git cd pyads python setup.py install --optimize=1
Installation on Arch Linux
yaourt -S python-pyads
First of all you need to define source and target AMS-ID connection strings containing the ID and the Port. An AMS-ID is a free 6-byte long identifier. Mostly IP is contained. See Beckhoff Spec's for more information about.
Remember: You have to insert your client AMS-ID into the ams table of your target device!
from pyads import * with AdsDevice(amsTarget="192.168.1.79.1.1:800") as device: info = device.ReadDeviceInfo() print(info)