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After we browse and select multiple items we get a crash - by: micham
The first time we browse and add multiple itemIds, every thing is OKay. Starting the second time we browse, we get a crash. See the attached screen capture. Any idea why? Thank you. Michael
View ArticleWriting NaN, +INF and -INF for floating point types - by: mfi
Hi, Is there a way to write a NaN, +INF or -INF value to the server from C# client for floating point types? I couldn't find anything in the documentation on how to write these special values.
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After we browse and select multiple items we get a crash - by: micham
The first time we browse and add multiple itemIds, every thing is OKay. Starting the second time we browse, we get a crash. See the attached screen capture. Any idea why? Thank you. Michael
View ArticleOPC Labs Kit Server / Add additional points for testing - by: tblong
For the OPC server "OPCLabs.KitServer.2" that ships with QuickOPC, is there a way to add additional items of a particular data type for use during testing? Adding additional points that behave just...
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Automated deployment / to RegAsm during install or not? - by: tblong
I have reviewed the following two pages in the user guide along with a few other posts related to RegAsm: Automated deployment, roll your own Installing COM Components and Type Libraries My application...
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Browsing OPC UA servers with multi select - Getting the NodeElement Brows...
Hi, I need to get the NodeElement Browse Names when multiselct = True. I need something similar to: values = uaDataDialog1.NodeDescriptors but for the Browse names. Thank you. Michael
View ArticleWriteMultipleItemValues requestedDataType - by: PhilippeG
Hi OpcLabs Can you tell me the efficient (fastest) method to write MultiItemValues use DAItemValueArguments with passing an variant object value : object oTestVal =1;...
View ArticleIs the "http://opcua.demo-this.com:51211/UA/SampleServer" OPC UA server...
Hi, Is the " opcua.demo-this.com:51211/UA/SampleServer " OPC UA server that is installed with your QuickOPC local or on the web? Should every UA client be able to connect to it? I am trying with UA...
View ArticleSend a command to the OPC-UA machine for creation of a new order/job - by:...
Dears, I have already integrated in an application/service (simple MES) developed in VB6 the customer request like getting in realtime what is runninng and pass all the info needed to the CRM The new...
View ArticleDesign Question / Rely on automatic subscriptions or subscribe manually? -...
In reference to these two posts: Disabling automatic subscriptions made with OPC Reads Subscribing and reading large number of tags I actually like the idea of the EasyDAClient handling the creation of...
View ArticleBuild errors in Visual Studio 2017 Setup & Deployment - by: jgreg311
I've just started to get build errors when building my Setup & Deployment project in Visual Studio 2017. It used to build just fine. I've upgraded to 5.53 (QuickOPC 2018.2), and I'm guessing...
View ArticleReadMultipleItemValues Function Error - by: PythonByte
Guys, I have a working function in version 5.23 and I upgraded to the latest version 5.59 and it doesn't work anymore. It seems the parameter type have changed or something for the...
View ArticleBrowsing the DeltaV OPC server fails - "Object is not connected to server" -...
We are using QuickOPC.Net version 2018.2. We have a problem when trying to browse the DeltaV OPC server (opcda.OPC.DeltaV.1). When trying to browse, we see the error: Object is not connected to server....
View ArticleFindServersOnNetwork service? - by: micham
Hi, Is it possible to browse for OPC UA server using QuickOPC client .Net using the FindServersOnNetwork service? Thank you. Michael
View ArticleEasyDAClientConfiguration write to xml string - by: PhilippeG
Hi Opclabs Is it possible? Is EasyDAClientConfiguration is XmlSerializable I need to save EasyDAClientConfiguration in a xml string. When i execute WriteXml, the string is empty. Regards
View ArticleUpgrade from version 5.23 to 2020.3 - DCOM Issues - by: PythonByte
guys, my 5.23 version works fine, I just upgraded to version 2020.3 and made the necessary changes and my OPC server application now compiles and runs just like the old version except when I try to...
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Service starting Error 1053 - by: Hicham21
Hello, I'm trying to start the Quick OPCLabs as service on local service . It couldn't start and get the error " Error 1053: The service did not respond to the start control request in a timely...
View ArticleUpgrading toolkit form 5.35 to 5.59 - General question - by: Restrepo
Hello Z, I am currently working with a customer that is upgrading to the newest version of the SDK (5.59). He was originally using 5.35 so you can imagine the number of changes they are making given...
View ArticleAccess Denied on DASSIDirect - by: csm
Hi, I have been trying to subscribe to tags on an OPC Server without any success, all avenues return "Access Denied" error as per the XML attachment. I've adapted the .NET Console samples "XmlLogger"...
View ArticleSubscription rate is set to 1000ms but Excel updates at 2sec - why? - by:...
I have tried 500ms and 1000ms subscription rate in connectivity manager but excel still updates at slow 2 second inteval. Also i want to know how to remove the vertical scroll in cells. I just want to...
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