Node-OPCUA by example - edition 2022
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Node-OPCUA by example - edition 2022

About the Book

This book is the second edition of "NodeOPCUA by Example". It provides hands-on recipes to best use node-opcua, the OPCUA stack for javascript and typescript.

It is updated and enriched regularly to match the most recent release version of node-opcua.

About the Author

Etienne Rossignon
Etienne Rossignon

About NodeOPCUA


Node-OPCUA is OPC-UA's open-source reference implementation in javascript 

Since its launch in 2014, Node-OPCUA has been downloaded more than 500.000 times and has nearly 30,000 downloads per month.

Node-OPCUA is used worldwide in many industrial applications and is an essential building block for many world-class applications such as  IBM's IIOT Node-red and Amazon Greengrass platforms.

Node-OPCUA allows easy writing of servers and interactive clients.

Node-OPCUAis published in open-source (MIT license) on GitHub and has an active community of testers and contributors.


About Etienne Rossignon


Etienne is the author and designer of Node-OPCUA, the OPCUA framework for nodejs and Founder of Sterfive


Etienne has more than 25 years of experience in software development innovation for the industry in the field of CAD / CAM, dimensional metrology, and machine-to-machine communication and holds a double Master in Science & Technology from “Arts & Metiers”.


About Sterfive


Sterfive develops the next generation of open-source software for the industry. It specializes in the communication of industrial objects thanks to the OPCUA interoperability standard.

Sterfive is exclusively funding its open-source R & D thanks to the support of its sponsors who are industrial users of Node-OPCUA.

Sterfive offers expertise, assistance, and support services to its industrial customers who want to implement Node-OPCUA in the best conditions in their applications.

Sterfive also develops custom software for its customers such as dedicated OPCUA embedded servers and aggregators. Sterfive is a Corporate Member of the OPCUA Foundation and a UMATI Partner





Table of Contents

    • Introduction
      • 1.1 Assumptions
      2 Getting Started
      • 2.1 installating pre-requistes
      3 Basic NodeJS Concepts
      • 3.1 Async programming in node JS
        3.2 Understanding Promise & Async/Await
        3.3 Debuging
      4 Basic OPCUA Concepts
      • 4.1 OPCUA
        4.2 Address Space
        4.3 the different node classes
        4.4 Node Attributes
      5 Implementing a OPCUA Server with NodeOPCUA
      • 5.1 writing our first node-opcua server
        5.2 our first server in TypeScript
        5.3 Populating addressSpace
        5.4 adding a custom reference
        5.5 binding variable with external values
        5.6 updating ua variable by polling
        5.7 Populating the address space
        5.8 Creating a server with custom nodeset2.xml
        5.9 Server with secure endpoints
        5.10 Server with events
        5.11 Server with alarm
        5.12 Server with user management
      • 6. State Machine
        • 6.1 Analyser Device Integration State machines
          6.2 Dealing with OPCUA Enumeration types on the server-side
          6.2 accessing enum variables defined in an external nodeset
        7 creating a custom OPCUA Discovery server
        • 7.1 installing prerequisite
          7.2 discovery server
          7.3 server
        7 server advanced concepts
        • 8.1 Semantic Change Event
          8.2 server with method
          8.3 server with standard nodesets
          8.4 server with external nodeset
          8.5 Exposing a File in a node-opcua server
          8.6 exposing a File node in the address space
          8.7 FAQ
          8.8 Client reading a file
          8.9 Client reading a file
          8.10 server with user managmeent support
          8.11 Packaging node-opcua application
        9 Implementing a OPCUA Client with NodeOPCUA
        • 9.1 implementing a simple client
          9.2 connecting to a client with a user/name password authentication
          9.3 connecting with a X509 certificate
          9.4 Create a client session with a X509 user certificate
          9.5 reading a value
          9.6 Connecting using encrypted channel
          9.7 client with large number of monitored items
          9.8 script
        10 Extracting endpoint
        • 10.1 Client with BrowseNext and Continuation points
          10.2 Client with Crawler
          10.3 simple client fetching extension object
          10.4 Client with simple client fetching extension object
        11 Extension Objects
      • 11.1 server exposing an ExtensionObject .
      • 11.2 client reading an extension object
      • 11.3 client writing an extension object

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