OPC UA in Python

This Tutorial will use the OPC UA protocol to send data between different devices or different programs. OPC UA is a communication protocol. OPC UA is mainly used for industrial purposes (industrial automation), and it is one of the most used protocols in the industry today.

There exists lots of different OPC packages and libraries for Python. This Tutorial will demonstrate OPC UA in Python with some basic Code Examples using the “opcua” Python package. This Tutorial will use the Thonny Python Editor and the Spyder Python Editor, but other Python Editors can of course also be used. This Tutorial will use the OPC UA Server Simulator from Integration Objects (free OPC UA server for Test and Demonstration purposes), but other OPC UA Servers can of course also be used.

We will create both OPC UA Clients and an OPC UA Server using Python and the “opcua” Python package.

Blog:

YouTube Channel @Industrial IT and Automation ​

Python Resources:

[derlumpenhund]

A very helpful introduction, thank you Mr. Halvorsen!

[hocthan]

Hi sir, Can you develop a HMI Dashboard to Interact with a PLC using OPC UA?

[jawadulhaq]

Hello, this is amazing. Can you please assist me with connecting to a Beckhoff OPC UA server with Security via Python? I am trying to connect to OPC UA server on Beckhoff PLC. With UA Expert I can easily connect to Beckhoff OPC UA server but when I try to connect via Python it doesn't work. I am struggling with setting up security on python side.