License Manager not working as expected - by: B351
I had to reinstall Quick OPC on a new computer. I ran the license manager and it shows I am licensed OK, Serial number = 1999321252 (screen shot attached) However the control still times out in the...
View ArticleError 80131534 - by: B351
Hi I have compiled an application using VB6 running on a windows 7 32 bit machine. I deployed to to a Windows 10 64 bit machine and get error 80131534 when the application trys to use the...
View ArticleDifferent QuickOPC runtime revisions on the same PC - by: lamar
Hi, it seems that if I install two different runtime revisions, the application that is compiled for the older revision stops to work. However if I install only the newer runtime, the compilations for...
View ArticleData exchange speed - by: lamar
Hi, is that normal that the "EasyDAClient.ReadItemValue" and "EasyDAClient.WriteItemValue" functions are extremely slow? The first data exchange takes 400-600 ms. Thanks.
View ArticleDifferent QuickOPC runtime revisions on the same PC - by: lamar
Hi, it seems that if I install two different runtime revisions, the application that is compiled for the older revision stops to work. However if I install only the newer runtime, the compilations for...
View ArticleException when browsing Kepware OPC UA server - by: micham
Hi, Our customer is getting an exception when browsing for items using the Kepware OPC UA Server. See the exception details below. Some of the text is in Polish language. Can you please advise?...
View ArticleException when browsing KEPServerEX OPC UA server - by: micham
Hi, Our customer is getting an exception when browsing for items using the Kepware OPC UA Server. See the exception details below. Some of the text is in Polish language. Can you please advise?...
View ArticleEmbedded lifetime license file does not register correctly - by: ew@cict.nl
Hi, Based on code from: opclabs.doc-that.com/files/onlinedocs/QuickOpc/2018.3/User%2...esource%20License%20Store.html we have made this C# code: string _resourcename =...
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How to connect to SPS Siemens S7 - by: Götz Heinemann
Hi there, I have to read variables from a Siemens S7, then act with them and write back the results to the SPS. I can connect via internet browser entering IP-Addr, then with login-name and password....
View ArticleINTERFACING WITH MSACCESS VBA - by: Rivadossi
Hello, I'd like to know if I can interface to your software using vba built in MsAccess . If yes, how ? I have an sql database on my server , I populate it with MSaccess , I need to collect...
View ArticleDifferent QuickOPC runtime revisions on the same PC - by: lamar
Hi, it seems that if I install two different runtime revisions, the application that is compiled for the older revision stops to work. However if I install only the newer runtime, the compilations for...
View ArticleVB Script syntax for ASP pages - error '80131600' - by:...
Dears, the idea in background is to realize an asp web page that refresh every minute, showing all the values of the counters of production machines on a monitor so I started from your sample asp...
View ArticleProvide Username and Password for access to OPC Server - by: tangoristo
Hi, i want to use the PicoOPC library with a Siemens OPC server that require username and password for access. There is some way to provide credentials through Pico OPC library? Thanks for support
View ArticleException when browsing KEPServerEX OPC UA server - by: micham
Hi, Our customer is getting an exception when browsing for items using the Kepware OPC UA Server. See the exception details below. Some of the text is in Polish language. Can you please advise?...
View ArticleConnecting with a remote OPC UA Server (KepServer) - No connection could be...
Hi, I am trying to connect with a remote OPC UA Server (KepServer). The endpoint URL is: "opc.tcp://DEV2017:49320". When my OPC Client tries to connect, I get the following error. Any idea why? Thank...
View ArticleCannot connect to KepServer - OPC UA service result - {BadUserAccessDenied} -...
Hi, When I try connecting with the KepServer UA, I get the following message: OPC UA service result - {BadUserAccessDenied}. Endpoint does not supported the user identity type provided. Can you please...
View ArticlePullMultipleItemChanges example - by: lamar
Hi, I found no example on "PullMultipleItemChanges" Could you please provide it, especially in Delphi. Thanks.
View ArticleSubscribing to a non-existent item - by: lamar
Hi, what is the expected behavior when I subscribe to a non-existent item? It seems, that the subscription succeeds, but "PullItemChanged" freezes.
View ArticleCannot connect to KepServer - OPC UA service result - {BadUserAccessDenied} -...
Hi, When I try connecting with the KepServer UA, I get the following message: OPC UA service result - {BadUserAccessDenied}. Endpoint does not supported the user identity type provided. Can you please...
View ArticleSubscribing to a non-existent item - by: lamar
Hi, what is the expected behavior when I subscribe to a non-existent item? It seems, that the subscription succeeds, but "PullItemChanged" freezes.
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