TRIAL OPCUA CLIENT & EXCEL - by: baldassarra
buonasera sto utilizzando la versione prova del vs software con l'opzione excel. Volevo sapere se con la versione prova è possibile creare un nuovo host e handpoint e testare il foglio in excel oppure...
View Articlecome esportare da excel su OPCUA CLIENT - by: baldassarra
buongiorno l'esempio DEMO EXCEL consente di poter leggere i dati provenienti da tags di un server opcua. Ogni cella di excel la funzione è RDT. Volevo sapere come si può fare il contrario ovvero...
View ArticleSlow reading, how can i speed up? - by: martinx1
Hi, i read with readmultipleValues ~300 Nodes Dim args(300) As UAReadArguments Dim valueResultArray() As ValueResult = _easyUAClient.ReadMultipleValues(args) but this takes ~3 seconds. Can i make it...
View ArticleGetting the image type, when reading image nodes - by: Lars Otte
Hello, currently we are implementing images in our software. The images are read from an OPC UA Server using QuickOPC.NET. I’ve already done some tests and reading images works fine using QuickOPC. I...
View ArticleLicense defaults to trial in versions greater than 5.58.451 - by: JeremyMahieu
We are using the RegisterManagedResource method and have a valid license. With the latest version (5.59.1055) of the nuget package, the license defaults to the trial license. It works correctly with...
View ArticleNullReferenceException on Large Subscriptions - by: ZParham
I have a customer who is updating his previously working code to the 5.59 release of OPC Data Client. The code was working on 5.58. This project takes tag values from a Beckhoff TwinCAT PLC via TOP...
View ArticleDoes the UAGenericObject work with the CallMethod? - by: Restrepo
Hello Z, I am currently working with a Customer that is trying to utilize Complex data in his application and he is trying to use it with the EasyUAClient.CallMethod. Now, the CallMethod returns an...
View ArticleReading/Writing Files exposed by OPC_UA Server - by: cadomanis
Looking for assistance is reading and writing File ObjectTypes from our Beckhoff OPC Server. The following is a snippet from the server documentation that explains the functionality that has been...
View ArticleLoading DLLs Dynamically and missing a Library after upgrade - by: Restrepo
Hello Z, I am currently working with a customer who recently upgraded to the current version of the OPC Data Client, version 5.59 from 5.3. he tried to load a dll he created dynamically that references...
View ArticleOPC UA - User Name with backslash (\) - by: Rperez
Hello, We are trying to authenticate by OPCUa, but when there is a backslash (\) in the UserName, it gets NULL. Do you know the solution? Best Regards,
View ArticleOPC UA - User Name with backslash (\) - by: Rperez
Hello, We try to authenticate with OPC UA by user name and password. If there is a backslash in the UserName, the function returns an user Name NUll. Do you know how we can set this character in the...
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Browsing a tree leaf with 20,000 items fails with Exception (timeout) - by:...
When browsing a tree leaf with 20,000 OPC items, I get an error: Timeout browsing nodes. + The client method called was 'BrowseNodes'. When I try the same with Matrikon OPC Explorer, I can browse and...
View ArticleOPC UA - User Name with backslash (\) - by: Rperez
Hello, We are trying to authenticate by OPCUa, but when there is a backslash (\) in the UserName, it gets NULL. Do you know the solution? Best Regards,
View ArticleApplication Crashes after getting tags from OPCL - by: Roie.b
Hi All, I am a new OPCLab use. and I am currently using OPC-DA server & a WPF client App, problem is: after reading a few tags(like so): _easyDAC.GetMultiplePropertyValues(Parameters.OPCIP,...
View ArticleOPC UA Web App Unable to Recognize License - by: gkalipershad
Hello, I have been working with a customer that has an OPC Data Client Professional Edition license. The are using the following: - OPC Data Client 2020.3 (5.59.492.1) - Windows Server 2019 Datacenter...
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Instantiate the client objects multiple times - by: mozesa
Hello! I would like to ask for some help. Currently I am using your trial version but in the end I would like to buy a QuickOPC Ultimate, but first I have to convince my boss. I am developing in Python...
View ArticleUse of EasyDaClient hangs application - by: saratalley
I have Windows version 20H2, when I tried to run a previously written application that used the EasyDaClient 2018.3 Visual Studio would randomly crash with no indication of the what the problem might...
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Instantiate the client objects multiple times - by: mozesa
Hello! I would like to ask for some help. Currently I am using your trial version but in the end I would like to buy a QuickOPC Ultimate, but first I have to convince my boss. I am developing in Python...
View ArticleReading / writting values via QuickOPC causes RAM usage (GE iFix, VBA) - by:...
Hi, I am facing issues with high memory usage while executing Read and Write values operations with QuickOPC-UA Client. We are using the application in connection with GE iFix. iFix scripts are written...
View ArticlePackaging Python application using pythonnet - by: mozesa
Hello! I would like to ask for your kind help. I would like to deploy the application. I use clr and not win32com.client. Currently the app uses the assemblies from path: c:\Program Files (x86)\OPC...
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