7# OPC UA Python Client | Read Data Using NodeIds and Address Space Browsing

Published: 05 February 2026
on channel: IndusCore Tech

Welcome to IndusCore Tech !
OPC UA Explained : • 1# OPC UA Explained : Architecture, Securi...
Playlist OPC UA : • OPC UA Fundamentals & Practice (From Basic...

In this video, we explore two different ways to access OPC UA data using a Python OPC UA client.

You will learn :
How to program an OPC UA client in Python using NodeIds
How to program an OPC UA client using Address Space navigation
How to connect a Python client to an OPC UA server
How to read real-time values from OPC UA variables
How to build two different OPC UA client approaches in code

The demonstration is based on a Python OPC UA Server simulating a tank system (Level, Valve, FlowRate),
and two OPC UA client implementations:
Client using explicit NodeIds
Client using Address Space navigation

This approach is essential for real industrial OPC UA systems where NodeIds may change and clients must discover data dynamically.

Tools used in this video:
Python OPC UA Server
Python OPC UA Client (python-opcua library)

OPC UA Python library :
https://github.com/FreeOpcUa/python-o...
https://python-opcua.readthedocs.io/e...

This video is part of the OPC UA & Industrial Basics Series, focused on practical, real-world OPC UA communication.

If you’re interested in OPC UA, industrial networking, SCADA, PLCs, and IIoT, don’t forget to like, subscribe, and share !

#opcua #automation #industry40

Chapters :
00:00 Introduction
00:08 Live demonstration: OPC UA clients reading server data
00:52 OPC UA client using explicit NodeIds (ns=, i=)
06:54 OPC UA client using Address Space navigation

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