Connecting to remote Machines via CODE - by: arahming
I am trying to use some simple code I copied from Softwaretoolbox.com to connect to a remote OPC server and check a tag. I have installed the same server on my local computer and it works on the but...
View ArticleQuick OPC 5.2 download link? - by: lux1
We purchased quick OPC professional about a year ago and used version 5.23. I only found 5.35 which requires .net4.5 but I'd require one for .net4.0. Is there still somewhere a download link for the...
View ArticleOPC-UA client session is disconnecting, why? - by: openventure
I have a windows service that implements an OPC UE client with library version 5.30. It run for days 24h by day with many opc ue tag subscriptions. Sometimes I receive a disconnection for an unknown...
View ArticleLimit on number of records that can be written - by: bojan
Dear OPCLabs, We have "QuickOPC Ultimate Site License With 1 Year Maintenance" and have the following issue: 1) OPC client that is used can't accept data for approximately more than 700 items...
View ArticleSmaller installation package for production environment - by: frighini
Hi all, is there an installation package smaller in size for production environment? My problem is that our production machines (many machine) are connected throught a slow network: at the moment i'm...
View ArticleOPC DA client and server running on differente machines with different...
Hi, here is our problem: - our OPC DA client is a service running under System account (we would prefer not change this). - the OPC DA server is on another machine and was configured with "OPCConnect"...
View ArticleCan't run when target platform is x86 or Any CPU with Perfer 32-bit checked -...
I have version 5.35 installed on my pc. Reading your documentation, I think I should be able to build my application with target platform set to x86. But running your QuickOpcCSharpExmaples solution...
View ArticleOPC UA Write Exception - by: sebpinski
We're trying to just do some basic writes using the latest DLLs in a windows service. In my local environment it appears to work and we get the occasional comms error that we can live with. Moving the...
View ArticleDifferences between various Write methods - by: sebpinski
We would also like to know whether there is any difference between the methods, particularly where speed is concerned: EasyUAClient.Write and EasyUAClient.WriteValue EasyUAClient.WriteMultiple and...
View ArticleWriting PHP Error - by: pburgos
According to an example in another post i have the following code: <html> <head><t-itle>OPC</title></head> <body> <?php // Create EasyOPC-DA component $Client =...
View ArticleSpecify namespace, how? - by: p.kuyper@selmers.com
Can someone tell me how to create a valid value for the namespace? See attached image. Many thanks in advance, Cheers, Peter
View ArticlePerformance issues - by: juanbernabeu
Hi there, We are having a CPU usage problem with our component at one of our clients. We recently installed it there and we see the CPU load go to 100% for an extended period (several minutes or...
View Articleenhancing a non-OPC Application to a OPC UA client - by: toha0893
Hallo OPCLabs team, Our company has decided to make our Delphi based on Microsoft running non OPC SCADA software OPC UA compatible(Gen. 4.5), as a in-between step to developing a new SCADA software and...
View ArticleData Change - by: adid@contel.co.il
hello, i listen to the datachange event and it's all working fine, but there is tag that i get from him data change event, when the tag doesn't change ( i save the tag value and saw several times it...
View ArticleThe OPC-UA subscription publishing has stopped. - by: Alex-Derksen
We have the same problem again an OPC-UA subscription publishing has stopped. Can you give me a tips or solation for this problem? In the attachment, I have put three log files (WireShark, HMI.txt and...
View ArticleASP.NET - WebForm application - how to begin - by: forum-dv
Hello! I have QuickOPC.NET 5.23 and I want create an ASP.NET WebForm Application. I cannot find any toolbox items or example to start with. Can anyone help? Regards
View ArticleHow to trust the server - by: giles
How do I get a client running opc labs software to trust an opc server? not sure where I place or import the server certificate....
View ArticleThe OPC-UA subscription publishing has stopped. - by: Alex-Derksen
Performance repeat an error in the communicating by a "keep mechanism: Mechanism OPC UA”. At this time contain some “tag” (read/write date) either the server or client is no longer communicating...
View ArticleSingle Developer + Runtime Free License - by: tmouslih
Hallo; Wir haben ein "Single Developer + Runtime Free License" gekauft. Für die Entwicklung haben wir Quick OPC und die Installationsdatei auf dem Entwicklungsrechner installiert und damit eine C#...
View ArticleSetting the ClientName - by: rdprecure
Is there a way to set the client name? Similar to the ClientName property in the OPCDAAuto VB Wrapper?
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