# OPC-UA Client - client tag configuration error

**URL:** <https://forum.inductiveautomation.com/t/opc-ua-client-client-tag-configuration-error/21456>\
**Category:** Ignition Early Access\
**Created:** [December 17, 2018, 5:17pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-client-tag-configuration-error/21456 "2018-12-17T17:17:32Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![gnguyen](https://avatars.discourse-cdn.com/v4/letter/g/41988e/32.png) [@gnguyen](https://forum.inductiveautomation.com/u/gnguyen)\
**Post date:** [December 17, 2018, 5:17pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-client-tag-configuration-error/21456/1 "2018-12-17T17:17:32Z")

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Hi,

I’ve successfully connected a third party opc-ua server based on Unified Automation SDK. On te gateway web page and using the Quick Client, I can read/write tags with no problem.  
When using the Designer and dragging a single tag, the tag is correctly created with the right OPC server and item path but the value is “[null, Error\_Configuration, Mon Dec 17 17:49:41 CET 2018]”. Dat type is also correct and there is no message in the designer console nor the designer log viewer.  
Note: this is working well with the 7.9.10 OPC client.  
Any idea?

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [December 17, 2018, 5:26pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-client-tag-configuration-error/21456/2 "2018-12-17T17:26:27Z")

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Can you verify this happens on the latest nightly build?

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<div class="post-metadata">

**Author:** ![gnguyen](https://avatars.discourse-cdn.com/v4/letter/g/41988e/32.png) [@gnguyen](https://forum.inductiveautomation.com/u/gnguyen)\
**Post date:** [December 17, 2018, 5:54pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-client-tag-configuration-error/21456/3 "2018-12-17T17:54:54Z")

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Hi Kevin,  
I believe I’ve the latest: 8.0.0-beta0 (b2018121402).

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [December 17, 2018, 6:00pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-client-tag-configuration-error/21456/4 "2018-12-17T18:00:08Z")

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What’s the datatype of the Node in the UA server? I’ll see if I can reproduce this against their demo server.

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**Author:** ![gnguyen](https://avatars.discourse-cdn.com/v4/letter/g/41988e/32.png) [@gnguyen](https://forum.inductiveautomation.com/u/gnguyen)\
**Post date:** [December 17, 2018, 6:15pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-client-tag-configuration-error/21456/5 "2018-12-17T18:15:46Z")

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It’s not their UA demo server but one built using their sdk. I’ll send a link to download the OPC server.

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [December 17, 2018, 7:33pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-client-tag-configuration-error/21456/6 "2018-12-17T19:33:38Z")

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There’s something wrong with the server - it just returns a StatusCode of “Bad” in response to the CreateMonitoredItemsRequest. It behaves the same way if you subscribe using UaExpert.

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<div class="post-metadata">

**Author:** ![gnguyen](https://avatars.discourse-cdn.com/v4/letter/g/41988e/32.png) [@gnguyen](https://forum.inductiveautomation.com/u/gnguyen)\
**Post date:** [December 17, 2018, 9:41pm UTC](https://forum.inductiveautomation.com/t/opc-ua-client-client-tag-configuration-error/21456/7 "2018-12-17T21:41:33Z")

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Well, we’ll see that with the PLC vendor; I’ll be back to you then.  
Thanks Kevin.
