New Version old bug - by: alr1976
I m Using your Library in Delphi. Im testing it and i found 2 bugs: 1) If i subscribe 1 tag it works fine.... but if i remove lan cable for 5 min and after i replug it it doesn t works anymore. I check...
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Feature request - by: olab
Hello, I often use the SQL server integration services SSIS to handle and transform data that are to be stored in a SQL server or to be transfered between any other system. There you find a lot of...
View ArticleUpdate server after property changed - by: Captain_Dash
Hello, First of all I am using VS 2015 and programming an wpf application via MVVM. I subscribed a data class with its properties to a similiar structure on our opc server successfully with the...
View ArticleWPF Controls - by: Captain_Dash
Hello, I wanted to know whether you are planning to develop ui controls for wpf too? If yes, when would they be available? Or if already existing where can i find them? Thanks in advance André
View ArticleLimitations of live mappings? - by: Captain_Dash
Hello, I tried to use the live mapping feature for struct on the opc server. I created a class which is similiar to the struct and equipped the class with the attributes of your live mapping feature....
View ArticleEasyUAClient.WriteMultipleValues takes almost 2 seconds to write to an Int16...
We have a problem with that the EasyUAClient.WriteMultipleValues takes more than a second to write to an Int16 field! I'm almost sure that the problem is in the OPC Server, but to get support I need to...
View ArticleRevert Back to Version 5.39. - by: pankaj
We have a site licence for the version 5.39 and I have recently Opc Labs Dlls to upgraded to 5.40. but I am getting this error that "Not allowed to run by the license. You might be using a trial...
View ArticleBuilding with .Net 4.6.2 and x64 causes InvalidOperationException - by: Erik
Hello, Using .Net4.6.2 and setting release to x64 causes the following crash: An unhandled exception of type 'System.InvalidOperationException' occurred in OpcLabs.EasyOpcUA.dll Additional information:...
View ArticleMonitoring connection state - by: Captain_Dash
Hello, I want to be informed, when the connection to the server is broken, changing and so on. What would be a proper way to achieve this? There is an event called ServerConditionChanged. Is this a...
View ArticleAn OPC operation failure with error code -1967439359 - by: Jukka
Hello Sir's Problems with writing to ABB OPC-server with function WriteItemValue. Error text: OpcLabs.EasyOpc.OperationModel.OpcException: An OPC operation failure with error code -1967439359...
View Articleparallel execution of mapping - by: Captain_Dash
Hello, I discovered a strange behavior of the mapping class and wanted to know whether it is caused by the client or the server and how to avoid it properly. First of all we have a class which contains...
View ArticleHandle Leak / Memory Leak using OpcLabs.EasyOpc.DataAccess - by: JV
We encountered a handle leak/memory leak using OPCLabs QuickOPC DA in .NET. The code is written in VB.NET. Once we reference "OpcLabs.EasyOpc.DataAccess" anywhere in the code (instantiating a...
View ArticleError: The requested name is valid, but no data will by found for the...
From: OPC Labs Contact Form - R. Sent: Friday, February 03, 2017 3:53 PM To: ... Subject: OPC Labs Contact Form - QuickOPC-Problems during evaluation I'm testing QuickOPC and I started with "Making a...
View ArticleDemo (trial runtime limitation in F#) - by: support
From: OPC Labs Contact Form - C. Sent: Wednesday, February 08, 2017 3:56 PM To: Zbynek Zahradnik ... Subject: OPC Labs Contact Form - Demo [...] I am trying to demo to check if it is a solution for a...
View ArticleLost Installation for Version 5.3 - by: MrASmidth
Hello Team, i just want to install a new instance of the Version 5.35. For this Version I have the license key. But i can't find anymore my Installation files. Where can I download the Installation for...
View ArticleProgrammatically changing COM global properties - by: support
(from email) We are working with a user that has some existing COM applications that use version 5.31 [...]. In some use cases, they wanted to disable the automatic subscriptions that are made when...
View Articlepdb not included - by: seecisud
Frequently, when I launch the application I get the error in the image. I must close and restart the application. Sometimes the problem persists and I must restart application many times. I'm using...
View ArticleVarType in Delphi - by: alr1976
Hi! how can I check if data received is Boolean or single in Delphi? I understand that I need to check eventArgs.AttributeData.ValueType eventArgs.AttributeData.ValueType = System.Boolean I have an...
View ArticleMemory leak in C++ - by: olab
Hello, Attached code is a small program thas is supposed to connect to an opcserver and return one item with value, timestamp and quality. The program is called cyclically from a soft plc. Now I se...
View ArticleVariable Array Element Live Mapping in OpcUA - by: bmts
Hello, I crated data model in .NET accoding example (UaConsoleLiveMapping). But In my data model is variable that is array of structures (see picture in attachment). I want to map 1 array elememnt from...
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