# OPCUA in mappAlarmX

**URL:** <https://community.br-automation.com/t/opcua-in-mappalarmx/10991>\
**Category:** HMI & Visualization\
**Tags:** mapp-services, opc-ua, mapp-alarmx\
**Created:** [April 22, 2026, 5:35am UTC](https://community.br-automation.com/t/opcua-in-mappalarmx/10991 "2026-04-22T05:35:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mreiter](https://avatars.discourse-cdn.com/v4/letter/m/FF8800/32.png) [@mreiter](https://community.br-automation.com/u/mreiter)\
**Post date:** [April 22, 2026, 5:35am UTC](https://community.br-automation.com/t/opcua-in-mappalarmx/10991/1 "2026-04-22T05:35:30Z")

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Hello,

With Version 6.6.0, mappAlarmX got its own OPC UA Interface. But I can’t get it to show up.

I’ve activated it in both the core config and the history config.

 ![alarmx1](https://europe1.discourse-cdn.com/brcommunity/original/2X/0/06a613d0ebc0124e6fd3912dcfb0cbce6ae80aa4.png)

I’ve then looked in the OPC structure for the endpoints. According to the documentation, they are found within the “SoftwareComponents” namespace.

I can see it in the browser, but I can’t access it.

 ![opc2](https://europe1.discourse-cdn.com/brcommunity/original/2X/5/53a4bf8a2d52197a4c5dd3e62f25fd3a9e6e582b.png)

![opc3](https://europe1.discourse-cdn.com/brcommunity/original/2X/d/dd9272cd8849b651e6fc4bc8a4edb202f184c2b5.png)

I’ve tried different setups with different users and roles/permissions. All without success.

On a side note: I’ve also activated the mappCocpit interface, which I was also unable to access. (I can access mappCockpit, but alarmX isn’t shown)

AS 6.5.2

AR 6.6.2

OPCUA/mappCockpit/mappServices 6.6.0

Thx

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<div class="post-metadata">

**Author:** ![mreiter](https://avatars.discourse-cdn.com/v4/letter/m/FF8800/32.png) [@mreiter](https://community.br-automation.com/u/mreiter)\
**Post date:** [April 22, 2026, 6:15am UTC](https://community.br-automation.com/t/opcua-in-mappalarmx/10991/2 "2026-04-22T06:15:11Z")

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I figured it out.

The problem was with the password of the user I defined.

This project was converted from AS4 to AS6. And while the user with the password worked, it seems it had problems with newer components.

Simply regenerating the password resolved my access errors. It now also works with mappCockpit.