# SEL RTAC to Ignition OPC-UA server

**URL:** <https://forum.inductiveautomation.com/t/sel-rtac-to-ignition-opc-ua-server/103346>\
**Category:** Ignition\
**Created:** [March 6, 2025, 7:38pm UTC](https://forum.inductiveautomation.com/t/sel-rtac-to-ignition-opc-ua-server/103346 "2025-03-06T19:38:12Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![dturner](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@dturner](https://forum.inductiveautomation.com/u/dturner)\
**Post date:** [March 7, 2025, 11:24pm UTC](https://forum.inductiveautomation.com/t/sel-rtac-to-ignition-opc-ua-server/103346/21 "2025-03-07T23:24:50Z")

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I have set everything to None and it is working now. I will follow up with SEL and to get more information about the certificate.

Thank you for your patience and help!

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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:** [March 7, 2025, 11:36pm UTC](https://forum.inductiveautomation.com/t/sel-rtac-to-ignition-opc-ua-server/103346/22 "2025-03-07T23:36:56Z")

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You should let them know about the upcoming OPC interoperability workshop: [OPC Interoperability Workshop 2025, North America - OPC Foundation](https://opcfoundation.org/event-detail/opc-interoperability-workshop-2025-north-america-2/)

I'll be there 🙂

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