https://forge.codesys.com/forge/talk/Engineering/thread/52b1471847/2026-03-17T15:47:28.251000ZRecent posts to OPC-UA ApplicationUri / ProductUri2026-03-17T15:47:28.251000Z2026-03-17T15:47:28.251000Zbdschnapphttps://forge.codesys.com/u/bdschnapp/https://forge.codesys.coma3bca0eabe5b0500c917c185481650405c08b288

<div class="markdown_content"><p>From Codesys support:</p> <p>The format of the URN is always the same. It's always urn:&lt;vendor&gt;:&lt;product&gt;:OPCUA:Server.<br/> What I think you can influence the vendor and product (DeviceName) through settings in the runtime cfg file:&lt;/product&gt;&lt;/vendor&gt;</p> <p><span>[SysTarget]</span><br/> VendorNameUnicode="T\00E\00S\00T\00"<br/> DeviceNameUnicode="t\00e\00s\00t\00"</p> <p>Note that these are 16-bit strings, thus the ASCII padded with nulls</p></div>

2026-03-16T22:02:35.753000Z2026-03-16T22:02:35.753000Zbdschnapphttps://forge.codesys.com/u/bdschnapp/https://forge.codesys.com78920690baa24fc72d21345e6cfb5497e99498f0

<div class="markdown_content"><p>Were you able to figure out if it is possible to change the Application/Product URI of your server? I am having the same problem. </p></div>

2024-05-10T11:16:06.299000Z2024-05-10T11:16:06.299000Zstillerhttps://forge.codesys.com/u/stiller/https://forge.codesys.comdd36cc7dd70cad3d131e58aa8819332fb689a0f3

<div class="markdown_content"><p>Thank you for your answer! I'm not sure, but it seems this is not what I am looking for.</p> <p>I attached three pictures. The first one is from the Codesys IDE. I use an Information Model to generate an OPC-UA server. I connected via UA-Expert, and there I see the URIs I would like to change.</p></div>

2024-05-10T10:19:48.986000Z2024-05-10T10:19:48.986000ZTimvHhttps://forge.codesys.com/u/timvh/https://forge.codesys.comc83d0a07172fd7ef076e54b87245afb9d366c40d

<div class="markdown_content"><p>Do you mean this:<br/> <a href="https://content.helpme-codesys.com/en/CODESYS%20Communication/_comm_use_dynamic_opc_ua_server_comm_settings.html" rel="nofollow">https://content.helpme-codesys.com/en/CODESYS%20Communication/_comm_use_dynamic_opc_ua_server_comm_settings.html</a></p></div>

2024-05-10T08:55:55.709000Z2024-05-10T08:55:55.709000Zstillerhttps://forge.codesys.com/u/stiller/https://forge.codesys.comc676ca3ad4700ffa6e6bd22df1c20b173bf0331b

<div class="markdown_content"><p>Hello!</p> <p>Is there a way to change ApplicationUri and ProductUri of the OPC_UA server?<br/> I can not find any information about it. Does someone have a clue?</p> <p>Thank you in advance!</p></div>