"BadTooManySessions" Problem - by: Sematex
Hello, I'm using the Quick OPC UA library to implement a graphical interface in Visual Studio. My communication is with a Schneider Electric PLC, model TM241. For some reason I didn't find out, I can...
View ArticleBought a signed cert and no success - by: Plcjc
Hello I purchased a cert from a CA and imported it in to Kepware ver 6.8 the people at keepware tell me the chain looks good as I sent them a screen shot from their server software that shows the path....
View ArticleCertificate's signature algorithm - by: KrisSik
Hi, Can I somehow specify the signature algorithm for UA certificate generator? The problem is when I use directory based certificate store, it creates certificate using sha256 algorithm, but when the...
View ArticleEasyDaClient - ItemChanged - Object Reference not set to an instanc of an...
Hi, I have a Single Developer + Runtime Free Licence. I wrote a program on my computer that use the opcDaClient. The license is installed on that computer. When I published that program on a different...
View ArticleProblem with item of type array - by: KarimgSaikali
When we retrieve the property āDAPropertyIds.DataTypeā from DANodeElement.ItemId, we got a VarType value. From it we can retrieve: - .IsArray - .InternalValue (of type vartypes From which we retrieve...
View ArticleOPC UA Browsing issues - by: KarimgSaikali
As a first stage, we only want to access UA server considering there are no security policies and no need for user authentication and certificates. - All good for browsing and selection of UA server. -...
View ArticleOpcLab problem after reinstall pc - by: alr1976
Hi! My pc is gone so i changed pc and i reinstalled Windows 10 and opclab 2018.2. I have problem to connect with any opc ua server. I have tried also Explorer(Your Tool) and i have same problem. I use...
View ArticleException while running application after so many days - by: vivek1706
Hello, I have developed a OPC UA Client WinForm based .NET application. It was working fine earlier. No exceptions. Now after approx 1.5 months, I tried to run the application/Start in Visual Studio...
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Certificate Failure in windows services - by: UreƱa
Helo, I'm using quickopc to work with OPC UA, I have the same code in 2 differents programs, the first one is based on winforms and it's working fine, but the second, is a microsoft services and when...
View ArticleCertificate's signature algorithm - by: KrisSik
Hi, Can I somehow specify the signature algorithm for UA certificate generator? The problem is when I use directory based certificate store, it creates certificate using sha256 algorithm, but when the...
View ArticleUpdate to Version 2020.2 - by: Enrico
Hello, I updated from version 2018.3 to version 2020.2. With version the 2018.3 the connectivity explorer was running fine (even today). After the update I get the following error message (see...
View ArticleRun Time Error starting Connection Explorer - by: StudioPandolfini
Launching Connection Explorer 2018.2 I receive a runtime error of "Invalid file format", see attachments. I've already tried to unistall and reinstall anything without success. I use this feature to...
View ArticleEasyDAClient Exception in Connectivity Explorer - by: gkalipershad
Hello, I have a customer who was using 5.58.146.1 and encountering the following error every time the Connectivity Explorer is run: The type initializer "OpcLabs.EasyOpc.DataAccess.EasyDAClient" threw...
View ArticleNo attributedata error - Wrong license number - by: ZParham
We have a customer who is receiving an error which is thrown after a few hours. UAClient is installed as a service. The error is as below: "No attributedata. opc.tcp://10.198.52.179:4841 Run time is...
View ArticleVisual Studio Crashes When Debugging - by: neilcooley
Hi I have a new laptop and have loaded it with Visual Studio 2019 and Windows 10. I have copied over my working projects from my old laptop (Visual Studio 2019 and Windows 10), they are written in VB....
View ArticleSerializationException: 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 ArticleCertificate's signature algorithm - by: KrisSik
Hi, Can I somehow specify the signature algorithm for UA certificate generator? The problem is when I use directory based certificate store, it creates certificate using sha256 algorithm, but when the...
View ArticleNamespace table change event - by: radek.huber
Hello, Is there any event which is triggered by the QuickOpc when the namespace table of the OPC server is changed? Best regards, Radek Huber
View ArticleMultiple secure channels caused by Isolated property - by: KrisSik
Hi, I faced a problem with multiple secure channels created during communication with the same OPC UA server using multiple EasyUAClient isntances (with Isolated = true parameter). Each of this...
View Articleruntime license installation - by: info@software2000.it
We have received the license, installed through the license manager; I have read that to install the runtime from the customer, you need to export the registry key for the license, but I am not able to...
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