Issues connecting to DeltaV servers. - by: MPick
We've been successfully using QuickOPC for a while now, but we have recently found that when we try to connect to one of Emersons DeltaV systems we are unable to do so. The error we get when attempting...
View ArticleVisual Studio 2017 Hangs when Compiling and Debugging - by: gkalipershad
Hello, I am working with a customer who has the following system specs: Windows 7 Pro 32bit VS2017 Professional Version 5.9.3 OPC Data Client version 2018.3 (5.54.453.1) Targeting 4.6.2 .NET Framework...
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Opc.Ua.Bindings.TcpAsyncOperation.OnTimeout(System.Object) - by: Sleepless
Hi ,Support I met a big problem about OpcLabs tools ,which is about OpcUa stuff.When I use methods (Writemultiple ,ReadMultiple,or SubscribeMultipleMonitoredItems),a same problem happens.Please check...
View ArticleHow to use UnsubscribeMultipleMonitoredItems in Delphi? - by: alr1976
Hi! I have a Subscriptionid list but i don t understand how to use UnsubscribeMultipleMonitoredItems in delphi. I have seen documentatione example but in that case is simple because you have...
View ArticleServerStatus node id (string) - by: phil56
Hello, I would like to test the state of my OPC UA server by reading the value of the State variable in Server->ServerStatus. Reading with Interger nodeid "i=2259" = Ok. But reading with a string...
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 ArticleSystem.ThrowHelper.ThrowInvalidOperationException(System.ExceptionResource) -...
Hi Support, When I use EasyUaClient to connect to many servers in .NET, a fatal error that I can`t catch in my program come out. The detail about this error in windows log like this: ExceptionInfo:...
View ArticleContinuous disconnects and reconnects with Cogent Data hub - by: bkell1977
Hi all, We have developed an app that uses QuickOPC and we are seeing an issue. We use the app against Cogent Data hub, but the logs show that we have continuous connects and disconnects of sessions. I...
View ArticleFailure: OPC-UA service result - Unexpected signature algorithm - by: sjscheider
When trying to connect to an OPC-UA server using a cert, I get the error below. Here the code I'm using which is basically the example. Any thought or suggestions on what is wrong? Is this a server...
View ArticleGet data from ARRAY Excel VBA - by: Šilhavý
Hello. Can you help me with getting data out of the UA Server (Arburg machine) using EasyOPCUA. Single value works fine. ut how can I get the full array or just given part of the array?: Single:...
View ArticlePowerbuilder - by: spaxman
I am using the new Powerbuilder examples and they are helpful. However I have 2 quick questions. 1. How can I force a synchronous read on the ReadMultipleItemValues on the easydaclient 2. I have been...
View ArticleManaged Resource License Store not working as expected - by: jc831
I am using Quick OPC Version 5.54.453 with a Single Developer + Runtime Free License. I added the licensing code based for the Managed Resource License store based on this article , and I can read back...
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EsayAEClient No Events with Kepware - by: Barrette
Hi, I try to get event with a KepWare server. ("Kepware.KEPServerEX_AE.V6") . How to configure the IP adress ? I try to configure event like this, but there a never event and no error messages. Can you...
View ArticleHow do we access the EasyUAClient? - by: jestraub
We have a license to QuickOPC 5.31 and have been using the DA client. Now we would like to get rid of the DCOM issues and try to connect/use the UA client. Our product is in VB6. How do I download the...
View ArticleValue not written on UAClientMapper.Write() - by: Captain_Dash
Hello., we run into a problem while writing variables to the opc server. We write values successfully to a opc multiple times. If there is a pause of 20to 80 seconds between of two write operations,...
View ArticleHow do we access the EasyUAClient? - by: jestraub
We have a license to QuickOPC 5.31 and have been using the DA client. Now we would like to get rid of the DCOM issues and try to connect/use the UA client. Our product is in VB6. How do I download the...
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Exception thrown in VB.NET - by: Sandro@More
Hi there, running a simple code for reading values from an OPC-UA Server, the output debug windows display the message "Exception thrown: 'Opc.Ua.ServiceResultException' in Opc.Ua.Core " also running...
View ArticleGetConditionState and AcknowledgeCondition - by: Barrette
Hello, My goal is a send to an Acknowledge to an OPC Server when I receive a notification (A&E). When I call "_easyAEClient.AcknowledgeCondition", there are this exception:...
View Articleopc ua - by: Parsa
How many tags that one OPC UA Client device can be able to communicate OPC UA Server?
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