DCOM Hardening issue - by: brandon.skiles@subaru-sia.com
I am attmepting to connect to a top server machine that has been upgraded to 2022 version. I am having issues connecting fom the client which is using OPCLabs.QuickOPC(5.63.121). I have configured the...
View ArticleSubscription/Unsubscription/Dispose with multiple clients - by: mpp
Hi! I'm using the latest nuget version 5.70.507. I prepared this test to explain the issue I'm having with the EasyUAClients: The test fails on the last Assert where I'm expecting the second client...
View ArticleQuick OPC NuGet Program issue - by: eshaq.quadri
We have been running and using QuickOPC client in our C# program to read necessary tags and capture some updates. We have few concerns related to the OPC lab C# NuGet component which we are using. We...
View ArticleTransfer Zip File (~20 MB) to MQTT Broker? - by: martinx1
Hi, is there a code sample how to publish a zip file (~max. 20MB) in C# oder VB.net to an mqtt broker ?
View ArticleBrowsing OPC UA Server (Kepware) - BadCertificateUntrusted - the certificate...
Hi, Our customer is getting the attached error/exception. Any idea what is the problem? The customer is able to browse using UA Expert. Exceptions Type: OpcLabs.BaseLib.Browsing.BrowseException Data:...
View ArticleUA Measurement system option? - by: janderscu
I am writing a fairly basic utility using the EasyOPC API to access a OPC UA server here on site to subscribe to a set of channels. All good with that. Now they have asked if I can add an option to my...
View ArticleError when calling EasyDAClient1.ReadItem() - 'Value cannot be null. - by:...
Hi, I am getting an error when calling EasyDAClient1.ReadItem(). This is my code below. All of the parameters are not null. Private Function ReadOPCItemValeuDA(szItemName As String) As DAVtq Dim...
View ArticleIssues with OpcLabs.QuickOpc on .Net Framework project but not on .Net Core -...
I use VisualStudio 2022. I use OpcLabs.QuickOpc from OpcLabs nuget www.opclabs.com/products/quickopc?nuget When I install this nugget on .Net Framework 4.7.2 console project and use it I usually get:...
View ArticleServer execution failed error only when UA Toolkit is installed on...
Background: Customer has built an application with a DA Server with the Integration Objects Toolkit and is now adding a UA Client using Data Client Toolkit w/ OPC UA. Issue: Once the UA Client is...
View ArticleHow to troubleshoot Timeout Exception? - by: aris
I get once in a while Timeout exception: I tried these settings just for sanity check, but it didn't work: EasyDAClient.SharedParameters.TopicParameters.TopicRetrialDelay = 0; _opcClient = new...
View Article600+ warnings in OpcLabs_EasyOpcUa_TLB.pas - by: KennethFerm
When compiling OpcLabs_EasyOpcUa_TLB.pas in Delphi 11.2 I get almost 700 warnings. I know I can turn them off in the file by adding {$WARNINGS OFF} and {$WARNINGS ON) around the file but I don't want...
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ReadMultipleItems - Failure: OPC NET API error - result ID: E_NETWORK_ERROR;...
Hi My english isn't very good. please bear with me. The OPC Server at a particular site is experiencing this error. Old version : OPC Client Program OPC 5.60.107 Current Version : OPC Client Program...
View ArticleNode IDs containing slashes - by: Lars Otte
Hello, Currently we‘re adding a new device, which uses OPC UA and has a different naming scheme for the node IDs. The IDs contain forward slashes instead of dots, for example:...
View ArticleTimestamps - why offset to local time, and their general sematics - by: support
From: M. Sent: Monday, September 01, 2014 10:36 PM To: ... Cc: Zbynek Zahradnik Subject: A couple of questoins re QuickOPC Gentlemen, [...] I have been able to make very good progress using QuickOPC...
View ArticleTimestamps - why offset to local time, and their general sematics - by: support
From: M. Sent: Monday, September 01, 2014 10:36 PM To: ... Cc: Zbynek Zahradnik Subject: A couple of questoins re QuickOPC Gentlemen, [...] I have been able to make very good progress using QuickOPC...
View ArticleUnobserved Task Exception when Using EasyUAClient - by: gkalipershad
QuickOPC 5.70.1012 .NET 6.0 VS2022 Windows 10.0.22621 The user set up a sample application that sets some shared static properties when the application starts, while also kicking off a task to do some...
View ArticleUnable to connect with IGS OPC UA server - by: micham
Hi, I am getting the following error while trying to connect with the IGS OPC UA server. It is based on the Kepware OPC Server. I don't see the clients certificate rejected certificate on the OPC...
View ArticleNode ID format? - by: micham
Hi, When browsing the IGS OPC UA Server items, the node ID has this format: nsu=Industrial Gateway OPC Server ;ns=2;s=46E_ENI_SLC500.46E.AA46E_AD20_DEWPT Can you please explain what is the difference...
View ArticleUnable to connect with IGS OPC UA server - by: micham
Hi, I am getting the following error while trying to connect with the IGS OPC UA server. It is based on the Kepware OPC Server. I don't see the clients certificate rejected certificate on the OPC...
View ArticleNode ID format? - by: micham
Hi, When browsing the IGS OPC UA Server items, the node ID has this format: nsu=Industrial Gateway OPC Server ;ns=2;s=46E_ENI_SLC500.46E.AA46E_AD20_DEWPT Can you please explain what is the difference...
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