Errorcode doesn’t belong to OpcException anymore - by: BertilG
Hi Z, I have upgraded QuickOPC Classic from version 5.53.315.1 to version 5.62.456.1 When I compile I have an error saying that Errorcode doesn’t belong to OpcException anymore. Any suggestion or...
View ArticleRelease Build Configuration won't compile - by: sjdockendorf08
I have a project built in .NET Standard 2.0 that includes the nuget package OpcLabs.QuickOpc library (5.59.1055). I am able to run the solution in debug mode successfully. However, when I switch it to...
View ArticleReadMultipleItem return an error with OPC DA Schneider - by: v.parma
My problem is on Schneider OPC DA Client with ReadMultipIetem function, this working fine with other OPC Server, with OPC DA Scheider of my customer return the value but also this error: Incorrect...
View ArticleBuilding demo projects with c++ 20 - by: Erik
Hello, I am trying to build the demo project for C++. With C++14 and C++ 17 the projects are building. I have changed the setting in the properties for the project: Configuration properties -->...
View ArticleOPC UA features for Siemens S7-1500 - by: gregkuha60
hello I'm planning to do an integration with the built in opc server in the Siemens CPU 1516-3 So i'm reading the manual, "S7-1500, ET 200MP, ET 200SP, ET 200AL, ET 200pro Communication" it says ".. If...
View ArticleBuilding demo projects with c++ 20 don't compile - by: Erik
Hello, I am trying to build the demo project for C++. With C++14 and C++ 17 the projects are building. I have tried to build the software with version 2018.3 and with the newest version 2021.3. I have...
View ArticleUse of already existing certificate ends up generating new certificate - by:...
Hello, I have encountered a problem where I am trying to connect my ua client to my opc server. I have already got a certificate which is trusted and according to this documentation I only need to...
View ArticleReadMultipleItem return an error with OPC DA Schneider - by: v.parma
My problem is on Schneider OPC DA Client with ReadMultipIetem function, this working fine with other OPC Server, with OPC DA Scheider of my customer return the value but also this error: Incorrect...
View Articlecan't connect unless Opc Test Client is run - by: observer
I'm having an OPC application startup problem and I am unsure how to correct it. I'm using Quick OPC 5.2 in a C# application. Sometimes (very often!) my OPC application needs to be restarted if OPC...
View ArticleHow to use QuickOPC with Dart (Flutter) language? - by: Chris74
Hello I would like to build an Android application as an OPC Client. I used to use Flutter with its Dart language. How to use QuickOPC with Dart (Flutter) language? Thanks Best regards Christian
View ArticleAlarm detection opc ua - by: Paulaaaa
I am working with opc ua, from ua expert and I would like to know how to report that an alarm has been triggered. I am working with python from rasa and I would like to know how to detect that an alarm...
View ArticleMemory growth observed with when ReadValue() is executed at a fast rate. -...
Hello Z, I wanted to run something by you and see if I can get your thought on this. I am currently working with a customer that is experiencing some memory growth when using the OPC UA client object....
View ArticleNode is not selectable - by: william.salvin@smcom.com
Hello, We use Delphi. We try to configure the initial set of the selected nodes (when the dialog is first displayed to the user) in TUABrowseDialog. From documentation this is given by the contents of...
View ArticleCould not create a certificate via a proxy - by: leinad
Our testing app cannot create a certificate (even connecting to the opcua.demo-this.com ) in the following environment: W10 PRO , .NET framework 4.0.30319, QuickOpc 553. No certficate is created in the...
View ArticleAuthentication with username and password with Visual FoxPro - by:...
Dear Sirs, I would need to authenticate with user and password (the OPC-UA server requires it), to read a series of values by inserting them in an object of type...
View ArticleDeltaV browsing issue - by: support
From: M. Sent: Tuesday, January 23, 2018 10:54 AM To: Z. Subject: DeltaV browsing issue Hi Z., We are still struggling with the Browsing issue using the DeltaV OPC server. Please see below the Inner...
View ArticleHRESULT: 0X80004005 (E_FAIL) when client.ReadValue(...) is invoked by VB6.exe...
Dear, I have already developed and used at customer site nr. 4 production machine working with a software solution developed with 2020.2 version and with 2020.2 version on customer server where...
View ArticleError Writing a string value -> Write failed. Reason: BadWriteNotSupported -...
Hello support, I'm getting this error in subject simpling writing a string in a field (string), see attachment "Write failed. Reason This email address is being protected from spambots. You need...
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Invalid class string (0x800401F3 (CO_E_CLASSSTRING)) when reading remote...
Hello. I am setting up an opc classic DCOM communication between two machines in the same domain. On remote machine: First I am browsing the servers using the opc server machine's IP adress and I...
View ArticleUA interface for non-UA OPC - by: nemec.on
Hello, We are using QuickOPC(5.2) for communicating with OPC. We communicate over DCOM. OPC not support UA. But there are some issues with DCOM communication (Windows setting is out of our control). So...
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