# OPCUA server GeneralModelChangeEventType option

**URL:** <https://forum.inductiveautomation.com/t/opcua-server-generalmodelchangeeventtype-option/112946>\
**Category:** Ignition\
**Tags:** opcua\
**Created:** [December 22, 2025, 4:06pm UTC](https://forum.inductiveautomation.com/t/opcua-server-generalmodelchangeeventtype-option/112946 "2025-12-22T16:06:30Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![andanurajibkumar.gup](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@andanurajibkumar.gup](https://forum.inductiveautomation.com/u/andanurajibkumar.gup)\
**Post date:** [December 22, 2025, 4:06pm UTC](https://forum.inductiveautomation.com/t/opcua-server-generalmodelchangeeventtype-option/112946/1 "2025-12-22T16:06:30Z")

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Hi all,

I am trying to integrate external AVEVA PI OPCUA connector with Ignition OPCUA server.

We are able to connect and browse succesfully but PI OPCUA connector is not able to auto-discover any new tag/device addition to the subscribed folder.

AVEVA PI team has asked to enable “GeneralModelChangeEventType” in the OPCUA server, but I cannot find this option anywhere in the Ignition OPCUA server settings. Can anyone help finding this option? I am using 8.1 Ignition .

Thanks

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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 22, 2025, 4:35pm UTC](https://forum.inductiveautomation.com/t/opcua-server-generalmodelchangeeventtype-option/112946/2 "2025-12-22T16:35:14Z")

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This option / feature doesn't exist. There is not currently a mechanism you can use to be notified when tags are added/removed.

You should, however, see changes when re-browsing the server. You can confirm this much with any external OPC UA client.

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**Author:** ![andanurajibkumar.gup](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@andanurajibkumar.gup](https://forum.inductiveautomation.com/u/andanurajibkumar.gup)\
**Post date:** [December 22, 2025, 4:47pm UTC](https://forum.inductiveautomation.com/t/opcua-server-generalmodelchangeeventtype-option/112946/3 "2025-12-22T16:47:44Z")

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Thank you Kevin,

We would like to implement auto discovery; we want to avoid manual re-browsing every time there is a new device. Do I understand correctly that Ignition doesn’t support this option yet ?

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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 22, 2025, 4:48pm UTC](https://forum.inductiveautomation.com/t/opcua-server-generalmodelchangeeventtype-option/112946/4 "2025-12-22T16:48:17Z")

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> [@andanurajibkumar.gup](#):
>
> Do I understand correctly that Ignition doesn’t support this option yet ?

Yes, that's correct.

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<div class="post-metadata">

**Author:** ![andanurajibkumar.gup](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@andanurajibkumar.gup](https://forum.inductiveautomation.com/u/andanurajibkumar.gup)\
**Post date:** [December 22, 2025, 4:50pm UTC](https://forum.inductiveautomation.com/t/opcua-server-generalmodelchangeeventtype-option/112946/5 "2025-12-22T16:50:24Z")

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Okay, is it planned for any upcoming releases? It seems like an important core feature of OPCUA

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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 22, 2025, 4:55pm UTC](https://forum.inductiveautomation.com/t/opcua-server-generalmodelchangeeventtype-option/112946/6 "2025-12-22T16:55:44Z")

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I can create a feature request/ticket for it, but no it's not currently planned. Nobody has asked for this until now.

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**Author:** ![andanurajibkumar.gup](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@andanurajibkumar.gup](https://forum.inductiveautomation.com/u/andanurajibkumar.gup)\
**Post date:** [December 22, 2025, 4:57pm UTC](https://forum.inductiveautomation.com/t/opcua-server-generalmodelchangeeventtype-option/112946/7 "2025-12-22T16:57:37Z")

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Sure, thanks.

It would be great to have that option.