OpcLabs.QuickOpc 5.83.477

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Framework 4.7.2 This package targets .NET Framework 4.7.2. The package is compatible with this framework or higher. 
dotnet add package OpcLabs.QuickOpc --version 5.83.477
                    


                    

                
NuGet\Install-Package OpcLabs.QuickOpc -Version 5.83.477
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="OpcLabs.QuickOpc" Version="5.83.477" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="OpcLabs.QuickOpc" Version="5.83.477" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="OpcLabs.QuickOpc" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add OpcLabs.QuickOpc --version 5.83.477
                    


                    

                
#r "nuget: OpcLabs.QuickOpc, 5.83.477"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package OpcLabs.QuickOpc@5.83.477
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=OpcLabs.QuickOpc&version=5.83.477
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=OpcLabs.QuickOpc&version=5.83.477
                    


                            Install as a Cake Tool

QuickOPC

QuickOPC is a suite of OPC Client/Subscriber development components for .NET, COM and Python. These components are for OPC "Classic" (COM/DCOM-based), OPC XML-DA, and OPC Unified Architecture (including OPC UA PubSub) specifications.

Note: For OPC Server development, see OPC Wizard.

QuickOPC is a commercially licensed product. Without a license key, it runs in a trial mode. The trial provides valid data to client or subscriber applications for 30 minutes; after that period, the component (your app) needs to be re-started, and so on. You must also comply with licensing terms for 3rd-party material redistributed with QuickOPC. For details, see the documentation.

Ready to purchase? See full price list.
Want a U.S.-based vendor? Get OPC Data Client (same product) from Software Toolbox.

Remember that NuGet or Python packages are primarily a tool for resolving build-time dependencies. The amount of functionality that you get through QuickOPC NuGet or Python packages is smaller than what QuickOPC can actually do for you. If you want a full coverage of the features, you would be better off downloading the Setup program from OPC Labs Web site. Further below you will find a list of differences between the two distribution forms.

QuickOPC requires .NET Framework 4.7.2 or .NET 8.0 as a minimum. Under .NET 8.0+, it is supported on Linux, macOS and Microsoft Windows. QuickOPC can also be easily used from Python.

PLEASE DO NOT USE PRE-RELEASE PACKAGES UNLESS INSTRUCTED TO DO SO.

Need help, or missing some example? Ask us for it on our Online Forums! You do not have to own a commercial license in order to use Online Forums, and we reply to every post.

List of available NuGet / Python packages

  • OpcLabs.QuickOpc / opclabs_quickopc: OPC client and subscriber components for all environments and project types.

  • OpcLabs.QuickOpc.Forms: Components that are specific for Windows Forms (can be partially used from WPF as well).

  • OpcLabs.ConnectivityStudio.Sample.CS: Console-based OPC Wizard and QuickOPC examples in C# (source code).

  • OpcLabs.ConnectivityStudio.Sample.VB: Console-based OPC Wizard and QuickOPC examples in VB.NET (source code).

What is included in the NuGet / Python packages

  • Runtime assemblies for all OPC specifications and programming models.
  • OPC browsing dialogs and browsing controls for Windows Forms.
  • NuGet: IntelliSense support (XML comments).
  • NuGet: LINQPad examples.

What is only available from the Setup program

  • Support for COM development (VB6, PHP, Excel, Delphi and similar tools).
  • Visual Studio integration, including Live Binding design-time support (codeless creation of OPC applications).
  • Complete set of Examples and Demo applications, bonus material.
  • OPC Data Access simulation server, various tools.

What is only available from the Setup program or the Web site

Knowledge Base link - Tool Downloads

  • Various tools, such as Connectivity Explorer, Launcher, OPC UA Demo Publisher, OpcCmd Utility, UA Configuration Tool.
  • License Manager (GUI or console-based) utility.

How to start

If you do not mind reading the documentation: Getting Started with QuickOPC. Or, the whole User's Guide.

Otherwise, just instantiate one of the following objects (depending on the OPC specification), and explore its methods:

  • OpcLabs.EasyOpc.DataAccess.EasyDAClient (for OPC DA, OPC XML-DA Client development)
  • OpcLabs.EasyOpc.AlarmsAndEvents.EasyAEClient (for OPC A&E Client development)
  • OpcLabs.EasyOpc.UA.EasyUAClient (for OPC UA Client development)
  • OpcLabs.EasyOpc.UA.PubSub.EasyUASubscriber (for OPC UA Subscriber development)

Example code

C#:

using OpcLabs.EasyOpc.UA;
...

var client = new EasyUAClient();
object value = client.ReadValue(
    "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer",
    "nsu=http://test.org/UA/Data/ ;i=10853");

Python:

import opclabs_quickopc
from OpcLabs.EasyOpc.UA import *

client = EasyUAClient()
value = IEasyUAClientExtension.ReadValue(client,
                                         UAEndpointDescriptor('opc.tcp://opcua.demo-this.com:51210/UA/SampleServer'),
                                         UANodeDescriptor('nsu=http://test.org/UA/Data/ ;i=10853'))

Examples on GitHub

As opposed to the sample NuGet packages, the examples on GitHub also include Web, Windows Forms, Windows Service and WPF projects.

QuickOPC examples not using the package technology:

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Framework net472 is compatible.  net48 was computed.  net481 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (10)

Showing the top 5 NuGet packages that depend on OpcLabs.QuickOpc:

Package Downloads
OpcLabs.QuickOpc.Forms

Windows Forms features of QuickOPC. OPC client browsing dialogs and browsing controls, and live binding runtime. OPC DA, OPC A&E, OPC UA, PubSub.
OpcLabs.QuickOpc.Sample.CS

Console-based QuickOPC examples in C# (source code). Rapid OPC client development. Supports OPC Data Access, XML-DA, Alarms&Events and Unified Architecture (OPC UA), including PubSub.
OpcLabs.QuickOpc.Sample.VB

Console-based QuickOPC examples in VB.NET (source code). Rapid OPC client development. Supports OPC Data Access, XML-DA, Alarms&Events and Unified Architecture (OPC UA), including PubSub.
OpcLabs.UAPubSubJson

When used with OPC UA PubSub in QuickOPC, provides JSON mapping (e.g. in MQTT messages).
OpcLabs.QuickOpc.Wpf

WPF features of QuickOPC (live binding runtime). OPC DA, OPC A&E, OPC UA, PubSub.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
5.83.477 426 11/24/2025
5.82.423 743 10/16/2025
5.81.485 14,141 11/29/2024
5.80.347 8,020 8/25/2024
5.72.1044 7,631 1/26/2024
5.71.401 6,081 10/2/2023
5.70.1352 5,404 8/29/2023
5.63.246 44,426 6/18/2022
5.62.1032 16,633 1/18/2022
5.61.343 11,830 8/25/2021
5.60.107 12,748 3/15/2021
5.59.1055 12,342 2/6/2021
5.58.451 16,128 11/3/2020
5.57.125 8,019 3/21/2020
5.56.1073 3,463 2/13/2020
5.55.433 7,583 10/24/2019
5.54.1311 5,719 7/29/2019
5.53.405 5,504 10/5/2018
5.52.184 3,979 5/3/2018
5.51.465 4,077 11/10/2017
5.50.334 4,813 8/10/2017
5.41.1275 3,816 6/30/2017
5.40.315 4,237 7/29/2016

Table of all versions, with their basic requirements, and links to "What's New" pages: https://kb.opclabs.com/QuickOPC_Versions .