hello,

when i use the LogEntry i get more event notification after the event "The OPC-UA engine is connecting to the underlying subsystems." :

1. The OPC-UA engine has determined the client certificate parameters as listed below.
SubjectName: mscorlib.dll
ApplicationName: mscorlib.dll
ApplicationUri: urn:MES_SQL_TEST:mscorlib:2.0.0.0:neutral:b77a5c561934e089
ProductUri: urn:literal:string:Microsoft%C2%AE%20.NET%20Framework

2. The OPC-UA engine failed at tick 234809834 and will retry in 600000 milliseconds.

3 The OPC-UA client session on endpoint URL "opc.tcp://127.0.0.1:49320" failed at tick 234809834 and will retry in 10000 milliseconds.

4. The OPC-UA client session failed to connect to endpoint URL "opc.tcp://127.0.0.1:49320".
OPC-UA client engine is not connected.

5. The OPC-UA client session is connecting to endpoint URL "opc.tcp://127.0.0.1:49320".

6. The status subscription for an OPC-UA session on endpoint URL "opc.tcp://127.0.0.1:49320" is in failure. Further such warnings on this session will not be logged.
OPC-UA client engine is not connected.

in the output window i see :

* Transformed from: An exception of type 'Opc.Ua.ServiceResultException' from source 'Opc.Ua.Core' has occurred in OPC-UA SDK action 'ApplicationInstance.CheckApplicationInstanceCertificate'. The exception descend follows.
(1) {Opc.Ua.ServiceResultException} Opc.Ua.Core(CreateCertificateViaProxy) -> Could not create a certificate via a proxy: -error Could not initialize the platform layer.
(2) {Opc.Ua.ServiceResultException} Opc.Ua.Core(CreateCertificateViaProxy) -> -error Could not initialize the platform layer.

hope thisw helps ...

thank you,
Adi Damty

hello,

in version 5.23.513.1 the problem still happened.
the additional details of this error i get using logEntry are :

EventType : System.Diagnostics.EventLogEntryType.Information
EvetId : 101
Message : The OPC-UA engine is connecting to the underlying subsystems.
Raw Data : null
Source : OPCLabs-UAEngine

thank you,
Adi Damty

hello,

i created a clean website project in .net 3.5 project in order to test the problem is both environment ( the code is below ). the result are : in my test environment its all working, but in the client test environment ( the same code ) i get the same error : OPC-UA client engine is not connected.
this problem happened in debug mode and also not in debug mode.
i have also tried to read tag before browseDataNodes and than i get the same error from the Read function.

here is the code :

using OpcLabs.EasyOpc.UA;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class index : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
tryEasyUA();
}

private void tryEasyUA()
{
try
{
loadEasyUaClientProperties();

EasyUAClient easyUAClient = new EasyUAClient();
UAEndpointDescriptor uaEndpointDescriptor = new UAEndpointDescriptor("opc.tcp://127.0.0.1:49320");
UANodeElementCollection nodeElementCollection = easyUAClient.BrowseDataNodes(uaEndpointDescriptor);
Response.Write("Succeed");
}
catch (Exception exception)
{
Response.Write(exception.Message);
}
}

private static void loadEasyUaClientProperties()
{
EasyUAClient.AdaptableParameters.Session.CertificateAcceptancePolicy.AcceptAnyCertificate = true;

EasyUAClient.AdaptableParameters.Session.CheckEndpointDomain = false;
EasyUAClient.AdaptableParameters = EasyUAAdaptableParameters.Interoperability;
EasyUAClient.AdaptableParameters = EasyUAAdaptableParameters.OpcCompliance;

EasyUAClient.SharedParameters.Engine.AllowCertificatePrompt = false;
EasyUAClient.AdaptableParameters.Session.AllowEndpointDomainPrompt = false;
EasyUAClient.AdaptableParameters.Session.CertificateAcceptancePolicy.AllowUserAcceptCertificate = false;
}
}

thank you,
Adi Damty

hello,


i have also pay attention that in the client test environemnt in the OPC-UA configuration the Trusted Servers Tab is missing.

thank you,
Adi Damty

hello,

still the problem remain.

i am now move to the OPC-UA 5.23.454.1 ( all 4 dll files ) in my test environment ( Asp.net v4.0 ) and it's all working in my test environment. this is my static properties i used :

private static void loadEasyUaClientProperties()
{
EasyUAClient.AdaptableParameters.Session.CertificateAcceptancePolicy.AcceptAnyCertificate = true;
EasyUAClient.AdaptableParameters.Session.CheckEndpointDomain = false;
EasyUAClient.AdaptableParameters = EasyUAAdaptableParameters.Interoperability;
EasyUAClient.AdaptableParameters = EasyUAAdaptableParameters.OpcCompliance;
EasyUAClient.SharedParameters.Engine.AllowCertificatePrompt = false;
EasyUAClient.AdaptableParameters.Session.AllowEndpointDomainPrompt = false;
EasyUAClient.AdaptableParameters.Session.CertificateAcceptancePolicy.AllowUserAcceptCertificate = false;
}

in my test client environment ( Asp.net 3.5 ) i use the same DLL's and the same static properties and i still get the error : OPC-UA client engine is not connected.

is the 5.23.454.1 version is also for use with .Net 3.5 ?
what does this error means ? maybe there is a defenition in the kepware i can switch on and off and this causing this ?
in the test client environment i have kepware V5.8.109.0 and in my test enviroment my kepware version is V5.7.84.0 - i don't think this is the problem, just mention it.

thank you,
Adi Damty

Hello,

it's defenatllay someting that releveant to the OPC-UA Version.

in my test environment ( Asp.Net 4.0 ) i have this files in my bin folder and it's all working :
OpcLabs.BaseLib.dll - 134k
OpcLabs.BaseLibExtensions.dll - 393k
OpcLabs.EasyOpcUA.dll - 170k
OpcLabs.EasyOpcUAInternal.dll - 1,860k

when i try to use the same DLL in my test client enviroment ( Asp.Net 3.5 ) than the function browseDataNodes cause the website to be stuck. if i change the DLL in mt test client environment to :
( this is the DLL of the OPC-UA 5.2.3 Version )
OpcLabs.BaseLib.dll - 168k
OpcLabs.BaseLibExtensions.dll - 437k
OpcLabs.EasyOpcUA.dll - 198k
OpcLabs.EasyOpcUAInternal.dll - 1,974k

than i get the error : OPC-UA client engine is not connected.
and also i remark the line in my code :

EasyUAClient.EngineParameters.CertificateAcceptancePolicy.AcceptAnyCertificate = true;

because there isn't class CertificateAcceptancePolicy in namespace EasyUAClient.EngineParameters, using this DLL's.

so i can i get it work ? does the DLL in the .Net 3.5 are different ?

thank you,
Adi Damty