From: p.
Sent: Thursday, December 22, 2016 1:47 PM
To: [...]
Subject: RE: QuickOPC Download Form - [...]
Dear Sir,
I am currently evaluating QuickOPC. [...]
I am having problems connecting with quickopc to an OPC-DA server in our local network, and I don’t seem to find out how to solve it.
Using 2 other tools (OPC Quick client from KEPWare, and kassl dOPC explorer) I can successfully connect to our network OPC server and read/write items.
However when I try to connect using QuickOPC controls in C#, I am getting an exception.
The code I am using is:
EasyDAClient.SharedParameters.ClientParameters.UseCustomSecurity = false;
EasyDAClient.SharedParameters.ClientParameters.TurnOffActivationSecurity = true;
EasyDAClient.SharedParameters.ClientParameters.TurnOffCallSecurity = true;
EasyDAClient client = new EasyDAClient();
client.ReadItemValue("gradera2", "Marelec.Grader", "grader.curProg");When running this code, I get this exception:
OpcLabs.EasyOpc.OperationModel.OpcException: An OPC operation failure with error code -2147024891 (0x80070005) occurred, originating from 'OpcLabs.EasyOpcRaw.DataAccess.RawEasyDAClient'. The inner exception contains details about the problem.
---> System.UnauthorizedAccessException: Access is denied.
--- End of inner exception stack trace ---
at OpcLabs.EasyOpcRaw.DataAccess.RawEasyDAClient.CheckOpcResult(CHResult* hResult)
at OpcLabs.EasyOpcRaw.DataAccess.RawEasyDAClient.InternalBrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpcRaw.DataAccess.RawEasyDAClient.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.Internal.PSBoxingEasyDAClient.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.Internal.EasyDAClientCompositor.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.Internal.CompositeEasyDAClient.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.Internal.ForwardingEasyDAClient.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.Internal.LicensingEasyDAClient.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.EasyDAClient.BrowseNodes(ServerDescriptor serverDescriptor, DANodeDescriptor parentNodeDescriptor, DABrowseParameters browseParameters)
at OpcLabs.EasyOpc.DataAccess.Browsing.DANodeBrowseable.BrowseLeaves(Object parentNode, Object nodeFilter, IEnumerable`1& leaves, IEnumerable`1& exceptions)
Shortly after I get this error, my visual studio 2015 also crashes. Is there way to find out exactly what is causing this behavior, and how to solve it ?
Do I need to setup dcomcnfg or windows firewall specifically for quickopc controls ?
Best regards,
P.
