Professional OPC
Development Tools

logos

Online Forums

Technical support is provided through Support Forums below. Anybody can view them; you need to Register/Login to our site (see links in upper right corner) in order to Post questions. You do not have to be a licensed user of our product.

Please read Rules for forum posts before reporting your issue or asking a question. OPC Labs team is actively monitoring the forums, and replies as soon as possible. Various technical information can also be found in our Knowledge Base. For your convenience, we have also assembled a Frequently Asked Questions page.

Do not use the Contact page for technical issues.

Certificate error while reading value from OPC UA server

More
24 Jul 2021 08:22 #10039 by support

Please Log in or Create an account to join the conversation.

More
More
13 Jul 2021 13:28 #9981 by Dev_Opc
Oh ok, thanks. But what is the folder path for Rejected & Trusted Peers to copy the certificate?

Please Log in or Create an account to join the conversation.

More
13 Jul 2021 13:26 #9980 by support
Any tool that is able to copy a file.

Windows (File) Explorer in every Windows, for example.

Please Log in or Create an account to join the conversation.

More
13 Jul 2021 13:22 #9979 by Dev_Opc
How to move the certificate from rejected to Trusted peers certificate store? We have not done this before.
Is there some windows tool to achieve this or tool from opclabs? please guide

Please Log in or Create an account to join the conversation.

More
13 Jul 2021 06:59 #9974 by support
No code modification.

Find the rejected certificate in the rejected certificates store, and copy it over to Trusted peers certificate store.

Best regards

Please Log in or Create an account to join the conversation.

More
13 Jul 2021 06:47 #9973 by Dev_Opc
Thanks for the quick reply. I gone through the links, but could not understand the steps for resolution in my case as the articles are generic.

Could you please let us know the solution steps specifically? Is any code need to added/modified in our C# code of client or any action/settings needs to be done other than client code?

Please Log in or Create an account to join the conversation.

More
13 Jul 2021 06:30 #9971 by Dev_Opc
Hello,

We are trying to read the PLC tag value from OPC UA server (FTLinx Gateway) with QuickOPC Professional. So, we have installed QuickOPC trial version & FT Linx gateway on same machine. As per ur documentation Profession edition is enough to read value from UA server.

Below is the example we are referring to write code in our client application.

opclabs.doc-that.com/files/onlinedocs/QuickOpc/Latest/User%2...s%20of%20OPC%20UA%20Nodes.html

But we are getting below error while reading value in client application execution.

"Failure: OPC UA service result - {​​​​​​​​BadCertificateUntrusted}​​​​​​​​. The certificate is not trusted.\r\n --> {​​​​​​​​BadCertificateUntrusted}​​​​​​​​. Self Signed Certificate is not trusted.\r\nIssuerName: CN=FactoryTalk Linx Gateway, DC=[COMPUTER NAME HERE], S=--, C=--."

Could you please let us know the solution to resolve this & read UA server value with Security applied?

Please NOTE :- This issue comes when we have Security set to "Basic256 (Sign & Encrypt)" in FTLinx Gateway's UA server configuration. When the security is set to "None" in server configuration then there is no error and we are able to read the value. As we are looking to have Security.

Please Log in or Create an account to join the conversation.

Moderators: support
Time to create page: 0.213 seconds