<?xml version="1.0" encoding="utf-8"?>
<feed xml:lang="en" xmlns="http://www.w3.org/2005/Atom"><title>Recent posts to OPC-UA and other communication questions</title><link href="https://forge.codesys.com/forge/talk/Engineering/thread/03033918fb/" rel="alternate"/><link href="https://forge.codesys.com/forge/talk/Engineering/thread/03033918fb/feed.atom" rel="self"/><id>https://forge.codesys.com/forge/talk/Engineering/thread/03033918fb/</id><updated>2024-04-06T04:24:22.845000Z</updated><subtitle>Recent posts to OPC-UA and other communication questions</subtitle><entry><title>OPC-UA and other communication questions</title><link href="https://forge.codesys.com/forge/talk/Engineering/thread/03033918fb/?limit=25#671c" rel="alternate"/><published>2024-04-06T04:24:22.845000Z</published><updated>2024-04-06T04:24:22.845000Z</updated><author><name>rajshaswat</name><uri>https://forge.codesys.com/u/rajshaswat/</uri></author><id>https://forge.codesys.com48dc7477199ec2830269177b6055ad13639b2c0d</id><summary type="html">&lt;div class="markdown_content"&gt;&lt;p&gt;check this if it helps : &lt;a href="https://youtu.be/Hdpbsp2jG3Q?si=NTwK13c_YOSZXM3v" rel="nofollow"&gt;https://youtu.be/Hdpbsp2jG3Q?si=NTwK13c_YOSZXM3v&lt;/a&gt;&lt;/p&gt;&lt;/div&gt;</summary></entry><entry><title>OPC-UA and other communication questions</title><link href="https://forge.codesys.com/forge/talk/Engineering/thread/03033918fb/?limit=25#1e8a" rel="alternate"/><published>2024-04-02T11:20:28.589000Z</published><updated>2024-04-02T11:20:28.589000Z</updated><author><name>alexgooi</name><uri>https://forge.codesys.com/u/alexgooi/</uri></author><id>https://forge.codesys.com03f2c2ee67e284498b814317d7e157198b43c267</id><summary type="html">&lt;div class="markdown_content"&gt;&lt;p&gt;Dear forum, &lt;br/&gt;
I currently have a big question mark above my head, and maybe this forum can shine some light on the situation.&lt;br/&gt;
I recently updated to Codesys 3.15 SP19 Patch 6. And now I’m trying to setup the OPC-UA server, besides that I’m trying to connect to the controller with the Codesys V3 (Ethernet) protocol. &lt;br/&gt;
OPC-UA&lt;br/&gt;
I have installed the correct licenses on my controller (Runtime and communication. I’m able to connect to the controller with an OPC-UA client, and I’m able to browse the tags, so far so good. Therefore I’m assuming that the OPC-UA server is running on the controller. But now the strange part, in the device security settings I have set the communication Policy to BASCI256SHA256 ( I also have tried the other ones) and the communication mode is set to secure if possible (I also have tried all the other ones) (see picture). With these settings I would assume that I would only be able to login with a Basic256SHA256 policy with a client. But the opposite is true, I am able to login using the no policy mode and when I set it to Basic256SHA256 the client (UA-Expert) notes that this policy is not available on the server. I then check the certificates and I noted that there is no certificate for the OPC-UA server, I tried to generate one but it gave the error that the certificate has not been created by the device (See picture).&lt;br/&gt;
To summarize I have no clue what is going on, and the controller does the opposite of what I would expect.&lt;br/&gt;
Codesys Ethernet V3 driver&lt;br/&gt;
I have a HMI connected to the same controller using the Ethernet V3 driver. But this will not connect. I tried all the Protocols (see picture), with and without the username and password enabled. But it will not connect, when I scan the available servers I can see the controller with the port number that I am expecting, so I’m assuming that the Codesys V3 ethernet driver is up on the controller.&lt;br/&gt;
Does anyone can give me some direction, because the stuff that I tried doesn’t make sense to me.&lt;br/&gt;
Thank you in advance&lt;/p&gt;&lt;/div&gt;</summary></entry></feed>