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lq
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Senior Member

25 Aug 2024 19:35 #13057 by lq

Replied by lq on topic Error

Once again I'd like to thank You very much for the time and help received. The topic may be closed as:

#1) I found the source of the "old" service which as I said was written in NET 4.5, which was barely runnable in my environment.
#2) I decided to rewrite it with .NET6.

After completition, and being run compiled at the new machine - it:

- have no problem with communicating with OPCUA || KEPServer
- reads all the tags that are defined in config
.

I really do not know what is the problem with "old" service nor why after attaching the .der it does not work. Also, If I find time, I will try to debug it locally ....

Anyway - thank You very much.

Kindest Regards
Lukasz

The following user(s) said Thank You: support

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lq
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25 Aug 2024 12:27 #13056 by lq

Replied by lq on topic Error

Hello, much appreciated your help and understood.

#1 - ok so deducting from your note: the installed versions of the software does not have impact on the application as it got complied driver; if I understand correct.
#2 - last thing that bugs me, comparing the stack of the old machine and new one:

I do not undertand why moving it in 1:1 to new machine there's a problem with running it, as it seems more over the all related software and licenses are installed. I know there may be some differences related to it .....

INFO:

a) operating system:

old: Windows 7 Pro
new: Windows 10 Pro

b) in case of software related PLC:

old: KEPServer 6.4 + QuickOPC 2018.2 (5.53.225.1)
new: KEPServer 6.8 + QuickOPC 2022.63.225.2 + QuickOPC 2018.2 (5.53.225.1) ( I added it too)

c) application:

- from ...exe.config:

<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2"/>

- dependencies from exe.manifest:

<dependency>
    <dependentAssembly dependencyType="install" allowDelayedBinding="true" codebase="OpcLabs.BaseLib.dll" size="6239232">
      <assemblyIdentity name="OpcLabs.BaseLib" version="5.52.91.1" publicKeyToken="6FADDCA41DACB409" language="neutral" processorArchitecture="msil" />
      <hash>
        <dsig:Transforms>
          <dsig:Transform Algorithm="urn:schemas-microsoft-com:HashTransforms.Identity" />
        </dsig:Transforms>
        <dsig:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha256" />
        <dsig:DigestValue>Ze8NQCej/uH1zj7sVjrr5UXWKtHAsQ2E1O6tsxiRJCk=</dsig:DigestValue>
      </hash>
    </dependentAssembly>
  </dependency>

<dependency>
    <dependentAssembly dependencyType="install" allowDelayedBinding="true" codebase="OpcLabs.BaseLibForms.dll" size="1959936">
      <assemblyIdentity name="OpcLabs.BaseLibForms" version="5.52.91.1" publicKeyToken="6FADDCA41DACB409" language="neutral" processorArchitecture="msil" />
      <hash>
        <dsig:Transforms>
          <dsig:Transform Algorithm="urn:schemas-microsoft-com:HashTransforms.Identity" />
        </dsig:Transforms>
        <dsig:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha256" />
        <dsig:DigestValue>uQnuJVoF+bu1OVssHDCbkvgQxVkt/xmQgYLzQZIz590=</dsig:DigestValue>
      </hash>
    </dependentAssembly>
  </dependency>

<dependency>
    <dependentAssembly dependencyType="install" allowDelayedBinding="true" codebase="OpcLabs.EasyOpcUA.dll" size="8345600">
      <assemblyIdentity name="OpcLabs.EasyOpcUA" version="5.52.91.1" publicKeyToken="6FADDCA41DACB409" language="neutral" processorArchitecture="msil" />
      <hash>
        <dsig:Transforms>
          <dsig:Transform Algorithm="urn:schemas-microsoft-com:HashTransforms.Identity" />
        </dsig:Transforms>
        <dsig:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha256" />
        <dsig:DigestValue>5Gr0t2ord41QCdgEzYTM3njtxbHJYDtln6fslhd4XLM=</dsig:DigestValue>
      </hash>
    </dependentAssembly>
  </dependency>

d) certifactes:
OLD: probably generated by app at start=up
NEW: generated manually and moved to proper folders

e) references to KEPServer

OLD: the old KEPSERVER (6.4) - left at the old machine
NEW: the new KEPSERVER (6.

- at the same machine as the app referenced by ip

NOTES:

a) I got 2 other services here but written in NETCoreApp,Version=v6.0, and they work fine.

Anyway, I am sure we will rewrite this service with .NET6 or incorporate it into one of the services running sooner or later, but first I need the source code.

Thank You very much for replays and hints.

Kindest Regards
Lukasz

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support
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25 Aug 2024 11:41 #13054 by support

Replied by support on topic Error

Hello,
unless you get more information about the exception, I cannot help further. It might very well be unrelated to QuickOPC whatsoever.

Your listing of versions (below) makes no sense to me.

old machine: KEPServer 6.4 + QuickOPC 2018.2 (5.53.225.1)
new machine: KEPServer 6.8 + QuickOPC 2022.63.225.2

If, what you are describing, are versions of QuickOPC installed on the machine using the Setup program, then you should be aware that they are completely irrelevant. For .NET projects, the assemblies of QuickOPC are part of the project output, and thus whichever QuickOPC version your application has been built with, it will stay with it and "carry it" with itself. If your application was built with QuickOPC 2018.2, it is what it will use. It will not use QuickOPC 2022 just because you install it on the target machine.

Regards

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lq
Topic Author
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Senior Member

25 Aug 2024 10:24 #13053 by lq

Replied by lq on topic Error

Hello, Unfortunately, I do not have the source code for now. There's a chance that in a week time, it will be delivered.

Who gives the error? The app?

No information, it comes from the log file of the app

Is there more information to it?

I need the call stack of the exception. But are you saying you do not have the source code?

As above, no for now

#1

I got "my quess" when playing with config.json". Is it possible that referencing the tags changed if different versions of KEPServer and OPCUA are used ?

old machine: KEPServer 6.4 + QuickOPC 2018.2 (5.53.225.1)
new machine: KEPServer 6.8 + QuickOPC 2022.63.225.2

I got array of tags to be read in cong.json, if I remove them then error changes:
Empty array .... (of course it is custom programmer error)

I doubled checked the tags entries with definitions in KEPServer and they are correct.

That's all inforamation I got. If I got any new I will update the situation. Probably it will end rewiritting it to .Net6

Have a nice day.
Kindest Regards
Lukasz

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support
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24 Aug 2024 17:01 #13052 by support

Replied by support on topic Error

Who gives the error? The app? Is there more information to it? I need the call stack of the exception. But are you saying you do not have the source code?

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lq
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Senior Member

24 Aug 2024 08:35 #13051 by lq

Replied by lq on topic Error

Hello, thank You for the reply. I did so, which results in other kind of error. So, after copying .der to '..UA Applications\certs':

a) previous error is gone
b) new error is:

"given key was not present in the dictionary"

.

I was thinking of it as it is a bit ambigious ....

a) is it app related ?
b) key where ? key of what - certificate (certificate - key ) ?

It is so general that I barely know where to start

Kindest regards
Lukasz

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support
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24 Aug 2024 07:31 #13049 by support

Replied by support on topic Error

Copy the public key of the client certificate (.DER) from "C:\ProgramData\OPC Foundation\CertificateStores\MachineDefault\certs" to "C:\ProgramData\OPC Foundation\CertificateStores\UA Applications\certs".

Regards

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lq
Topic Author
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Senior Member

23 Aug 2024 23:19 #13048 by lq

Error was created by lq

Hello, I would appreciate any hints or guides for the following error solving:

Scenario:

1. I need to move the service to another Windows Machine - Windows 10
2. I moved all necessary applictions like: KEPServerEx, OPCUA Client
3. I moved appliction which runs as service

note:
a) unfortunately I cannot modify the source code, I need to work on what I got complied.
b) the app is based on .NET 4.5.2

Error:

Could not create a certificate via a proxy: Operation finished successfully = Bad.
+ The error occurred while checking the (client) application instance certificate. The certificate generator path was "C:\ExtralPressDataService\Opc.Ua.CertificateGenerator.exe".

More information:

1) I dug the forum and found informaction that the error is due to lack of the certificate
2) I try to issue the certificate manually by "Opc.Ua.CertificateGenerator.exe"

Opc.Ua.CertificateGenerator.exe -storePath "C:\ProgramData\OPC Foundation\CertificateStores\MachineDefault" -applicationName "ExtralPressDataService Press 8.1"

it is ok it generates der and pfx in '.../MachineDefaults"

3) Then import to OPC UA Configuration Manager - Trusted Certs gives warning , gives warning, but it goes through:
4) In Manage Certificates (Opcua config tool), Machine defaults, the certifacte is present

After all of that, the error changed to:

Self Signed Certificate is not trusted. = BadCertificateUntrusted

So the question is: how to issue trusted certificate with 'Opc.Ua.CertificateGenerator.exe' ?
Do I need to add any other specific arguments ? I use applicationName and stotePath ... ?

I really appreciate any hints or help ...

Kindest Regards
Lukasz

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