pylogix

This project will allow you to easily read/write values from tags in Rockwell Automation Logix based PLC's over Ethernet I/P using Python. PLC models inclued CompactLogix, ControlLogix and Micro8xx. Python2 and Python3 are both supported.

Getting Started

There are currently no dependencies so you can get going quickly without having to install any other prerequiste packages.

Installing

You can clone the repo with the following:

git clone https://github.com/dmroeder/pylogix.git
cd pylogix
python setup.py install --user

Verifying Installation

To verify the installation on Linux, open the terminal and use the following commands:

python
import pylogix
pylogix.__version__

Your First Script:

The cloned repository will come with many examples, I'll give one here. We'll read one simple tag and print out the value.

from pylogix import PLC
with comm as PLC()
    comm.IPAddress = '192.168.1.9'
    value = comm.Read('MyTagName')
    print(value)

NOTE: If your PLC is in a slot other than zero (like can be done with ControLogix), then you can specify the slot with the following:

comm.ProcessorSlot = 2

NOTE: If you are working with a Micro8xx PLC, you must set the Micro800 flag since the path is different:

comm.Micro800 = True

Other Features

Pylogix has features other than simply reading/writing. You can see all of them in the examples, I'll also list them here

Discover()
GetPLCTime()
SetPLCTime()
GetTagList()
GetModuleProperties(slot=0)

Authors

Burt Peterson - Initial work
Dustin Roeder - Maintainer - dmroeder
Fernando B. - Contributor - kodaman2
Ottowayi - Contributor - ottowayi

License

This project is licensed under Apache 2.0 License - see the LICENSE file for details.

Acknowledgements

Archie of AdvancedHMI for all kinds pointers and suggestions.
Thanks to ottowayi for general python and good practice advice
Thanks to all of the users that have tested and provided feedback.

hbkhum/pylogix