I'm trying to start a project om CTT, but when I add my Server URL i only receive back No endpoints discovered. The same server works well via UAExpert. Any possible causes and solutions?

https://opcfoundation.org/deve.....urce-code/

I am not aware anything available today.

I am working on a project that requires me to implement an OPC Xi server to maintain compatibility with a legacy client.

I have been searching for the original OPC Xi Reference Implementation, SDK, or Compliance Test Tool binaries, but as these were deprecated years ago, I am unable to find any functional links or repositories.

Does anyone happen to have an archive of these legacy OPC Foundation OPC Xi resources (circa 2010–2012)? Even if the code is outdated, having the reference implementation would be incredibly helpful for debugging my current attempt at a server implementation.

Any leads or pointers on how to actually target this standard would be greatly appreciated.

Thank you for your time and help.

Not every client will look for it but it is required if you are returning exchanging instances over the wire.

Specification is fairly clear:

https://reference.opcfoundatio.....erences%2E

We already tested with UAExpert and with that tool we are able to execute the method call. However according to Siemens the method call executed by Opcenter Execution MOM fails because our custom created 'DataType -> BaseDataType -> Structure -> FieldObject' does not return HasEncoding. This is also confirmed when browsing to FieldObject with UAExpert.

Because we now have internally a discussion in whether or not the problem is on the OPC-UA server side or in Siemens Opcenter Connect MOM I wanted to use the UACTT Lite test tool so that it maybe would confirm the feedback of Siemens that the OPC-UA Server is not compliant to the standard.

Is it possible to also answer my initial question if it is possible to test an OPC-UA method call with UACTT Lite?

Regards,

Erik

If that works it is client side issue.

The issue is you have likely created a DataType Node which is used as an argument in the Method.

This DataType Node needs to have an associated DataTypeEncoding Node. If your Server does not return a HasEncoding reference when the DataType is browsed then that would explain the issue.

To validate if our OPC-UA server is compliant with the OPC-UA standard I started testing with the 'UACTT Lite' test tool. However as soon as I try to execute a method call test script I get the error CallService does not exist. After some digging I discovered that I do not have the Call.js file which should be in the following location according to the documentation which is included with the 'UACTT Lite' test tool:

Location: /project>/library/Base/ServiceBased/MethodServiceSet/Call.js

So now I'm wondering is it even possible to test an OPC-UA method call with UACTT Lite or is this only supported in the full version?

Any help is appreciated.

Regards,

Erik

The download includes a powershell script that will clean up a 3.1.1 installation that was corrupted by the duplicate component ids.

Disclaimer: This is my product. You can contact me at sales09 (at) opclabs.com for questions.

Best regards

You can look at vendors that offer their own .NET libraries for COM access.

During development, we got a windows virtual machine that runs the OPC DA server. Using OPC Expert, we can already see the server and read variable changes. 

So far so good, but how can we implement a client that can read the data?

What we tried so far: 

a) python 32bit with pywin32 and OpenOPC

b) Native .net 8 

Both won't work because the automation layer (opcdaauto.dll from OPC Foundation) is not present.

What is the official way to develop a client, and from where do we get the opcdaauto.dll since it is not bundled in the redistributable package download?

Thanks in advance!

Are you available to verify before it is posted?