FactoryTalk Linx Gateway 6.11 COM Errors - by: jessebrown
Hello, We have an implementation using the latest FactoryTalk Linx Gateway on a Windows 10 machine. When using clients like Matrikon OPC Explorer, RS Linx, and OPC Quick Client we have no trouble...
View ArticleConnecting to many OPC-servers using multiple threads gives Timeouts - by:...
Hello, I try to do a MultipleRead (with 19 values) from 30 OPC-Servers running on 30 different hosts. THese servers are all up and running. The behaviour is unclear to me: 1. Using 30 C#-Tasks running...
View ArticleClik here to view.
VB.Net EasyOPC UA Demo - leaves are not displayed when browsing - by: micham
When I run the EasyOPC UA Demo, the leaves are not displayed. When using the UAExpert UA browser, the leaves are displayed. See attached screen capture. Any idea why? Thank you. Michael
View ArticleClik here to view.
VB.Net EasyOPC UA Demo - leaves are not displayed when browsing - by: micham
When I run the EasyOPC UA Demo, the leaves are not displayed. When using the UAExpert UA browser, the leaves are displayed. See attached screen capture. Any idea why? Thank you. Michael
View ArticleBadRequestTooLarge - by: RoadRunner2019
Hello OPC-Labs team, In our company we work with different PLC controls or OPC UA servers, which leads to a problem because our client has to cover all different PLC (OPC UA) controls Since all of our...
View ArticleBadRequestTooLarge - by: RoadRunner2019
Hello OPC-Labs team, In our company we work with various PLC controls or OPC UA servers. All controls provide at least over 2000 nodes. Due to the OpcUa server restrictions, it is not possible for us...
View ArticleClik here to view.
DAConnectivity component is missing in the Toolbox - by: micham
Hi, I am trying to build a new C# project. I have referenced the Quick OPC DLLs in my project. However, the DAConnectivity component is missing in the Toolbox. See the screen capture below. Any idea...
View ArticleExtract host or ip address from OPC url string - by: Andriy
Hello, As the title states, how can host or ip address be extracted from the string that is passed into ServerDescriptor class, and then into EasyOpcDa/EasyOpcUa clients' methods? ServerDescriptor...
View ArticleReceiving Error message event BadAttributeIdInvalid - by: Chiara-Dea
Hello! I've searched my issue through the forum and I found nothing. I'm trying to connect to OPC UA and read Alarms&Conditions. I made a .NET Core console application based on the example on the...
View ArticleOpcLabs lost connection to Kepware - by: adid@contel.co.il
hello, i am using opcLabs 5.32.1063.1. i am using the dll and it's all works fine - i succeed read and write tags. than after couple of hours i didn't succeed to write and to read tags, and i get an...
View ArticleTag update takes around 2 to 3 seconds!! - by: satheesh92
HI All, I am using a trail version to carry out tests before I purchase the licenses. My problem now is that the tags are not updating every 1 sec or 0.5 sec in the excel sheet even thought the...
View ArticleProblem QuickOPC-UA Demo .NET - by: arlecchino
Hi, I am a beginner with OPC. I have developed simply .NET software that works correctly with OPC-UA. I had to switch computers, I reinstalled QuickOPC 2019.2 and its license on the new computer....
View ArticleFactoryTalk Linx Gateway 6.11 COM Errors - by: jessebrown
Hello, We have an implementation using the latest FactoryTalk Linx Gateway on a Windows 10 machine. When using clients like Matrikon OPC Explorer, RS Linx, and OPC Quick Client we have no trouble...
View ArticleConnecting to many OPC-servers using multiple threads gives Timeouts - by:...
Hello, I try to do a MultipleRead (with 19 values) from 30 OPC-Servers running on 30 different hosts. THese servers are all up and running. The behaviour is unclear to me: 1. Using 30 C#-Tasks running...
View ArticleCOM covered by Standard Edition - by: VFoxpro
Dear support, Which version of QuickOPC is the last one where COM based developement is covered under Standard Edition Licence? Regards, Rainer
View ArticleVisual studio exemple debug crash - by: PhilippeG
Hi, I created a window form application included an EasyDAClient control When i compile in Debug (x86) Visual Studio crash (msbuild has stopped working) But it works when I launch directly the...
View ArticleSync read and hold periods in PowerBuilder Application - by: spaxman
I have the following settings in my PowerBuilder Client app. I want to do a synchronous device read/writes. Am I missing any settings? do you have any other suggestions on settings that I should be...
View ArticleAlarm Hi/Lo Attribute - by: grimas
Hi, I am trying to find out how I can know if an analogue alarm is High or Low using the UA .net library. Using the OPC AE library I was using eventData.SubConditionName for this information, but I...
View ArticleSubscription mode. Catastrophic failure error -> blocked...
Hello, I receive a lot of "Catastrophic failure" errors on ItemChanged event handler. I don't know what it means and how I can handle it. Can you provide information about this error: when it is risen...
View ArticleThe OPC-UA subscription ID 12345 publishing has halted on the client session...
We are currently evaluating QuickOPC and unfortunately, the following issue came up once we deployed our application to a Linux host (Ubuntu Server 20.04): This issue does not appear on a Windows host...
View Article