SerializationException: OPC.Ua.Core 1.3.342.0 Not Found - by: goosvanbeek
Hello support, I'm trying to deserialize an UAEventData object in a webapi service and get an serializationException (Could not load file or assembly 'Opc.Ua.Core, Version=1.3.342.0), see the...
View ArticleThe requested OPC Data Access technology 'Com' is not supported. - by:...
I am adding the sample code at the end of the explanation. This error started with Windows 10 Update to Version 2004 OS Build 19041.329 I have tested the following libraries: Nuget -> 5.58.192 Nuget...
View ArticleReading and Writing from vba (Access 2016) to RSLinx Gateway - by: jwomacks
I have an Access 2016 project that I will be using to read and write data to a Rockwell PLC controller. I will be communicating to RSLinx Gateway via OPC UA and am looking for some example code to...
View ArticleWhat product would be appropriate for using OUR program as an OPC server? -...
Hello. We have an automation application that in non-PLC and non-OPC, which uses a .NET C# platform together with MS SQL Server 2017 to collect automation data. A customer has requested the ability to...
View ArticleThe requested OPC Data Access technology 'Com' is not supported. - by:...
I am adding the sample code at the end of the explanation. This error started with Windows 10 Update to Version 2004 OS Build 19041.329 I have tested the following libraries: Nuget -> 5.58.192 Nuget...
View ArticleReading and Writing from vba (Access 2016) to RSLinx Gateway - by: jwomacks
I have an Access 2016 project that I will be using to read and write data to a Rockwell PLC controller. I will be communicating to RSLinx Gateway via OPC UA and am looking for some example code to...
View Articlesubscription handle value on bad connection - by: cadomanis
It appears that if attempting to subscribe with the following code, and a connection is not made a subscription handle of value 12586002 is returned? Is that the expected value on a bad connection,...
View ArticleUsing the old version - by: Vladimir
Hello! How can I use an old version of quickopc with my windows 7 ? At the moment I can only change the system time to make quickopc 2019.2 work. Thank you!
View ArticleSSL/TLS error calling OPC XML DA server with QuickOpc - by: georgeslegros
Hello, I'm currently trying to validate the usability of the QuickOpc library and I have an issue. I used the code available here:...
View ArticleNetwork PC Running OPC Labs - by: neilcooley
Hi We have a central server running the applications and in turn Easy OPC UA. The application work when they run on the server. When i run the same applications on the clients i get a error - see...
View ArticleNetwork PC Running OPC Labs - by: neilcooley
Hi We have a central server running the applications and in turn Easy OPC UA. The application work when they run on the server. When i run the same applications on the clients i get a error - see...
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Trusting certificate with AcceptAnyCertificate - by: SolutionNow
Hello, We have a program that uses your library that is launched by windows service. Being launched by a background service, the program also stays in the background. This creates a problem when at...
View ArticleSubscribing and reading large number of tags - by: FreegE
Hi, Currently im involved in a project to read about 40k tags (energy meters) and store in a database, the problem is that the read process takes to long time and now i need some help to find a better...
View ArticleQuickOpc 2020.2 - com_exception: Failed to create COM object - by: gheroil
Plezz help , Quick opc Com with PHP not working in windows server 2016 Fatal error: Uncaught exception 'com_exception' with message 'Failed to create COM object...
View ArticleOpc Da in .net Core - by: radek.huber
Hello, do you have any plans to add support for the opc da into the quickOpc .net core version? Thank you, Radek Huber
View ArticleEasyDAClient CallbackQueue Questions - by: Holbach
I have a few questions around the EasyDAClient CallbackQueue. 1. I know we can modify the size of the callback queue - are the units for this in events/callbacks? I would presume yes but wanted to...
View ArticleOLE error code 0 - by: info@software2000.it
Dear sirs, We have a problem urgently enough to solve, I have already checked on the forum but I have not found anything that can help me. We use the COM part of your application through VisualFoxPro...
View Articleinstallation on windows 2012 server core - by: giles
Hi I am trying to install OPC Labs .net tools on windows 2012 server core. Ie windows without GUI. I see the error that oledlg.dll is missing. So it looks like it's requiring some gui library which...
View ArticleType Initializer for EasyDAClient threw an exception with ASP.NET Custom...
I am currently working with a customer who has written a custom ASP.NET control which makes use of the EasyDAClient object. The problem comes up when in design mode and using the property editor for...
View ArticleOur .Net program crashes when the customer tries to browse for OPC servers or...
Hi, We have the following problem. Our customer in Malaysia is experiencing a crash each time he tries to browse for OPC Server or items. Our program is closing without an error message when the...
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