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HelpOffNormalAlarmTypeNode translation

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HelpOffNormalAlarmTypeNode translation

April 6, 2023
12:42, EEST

Francesco Zambon

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December 20, 2021

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Good morning,

I created a new alarm object HelpOffNormalAlarmTypeNode

HelpOffNormalAlarmTypeNode alarm = nodeManagerUaNode.createInstance(HelpOffNormalAlarmTypeNode.class, "MyAlarm", new NodeId(nodeManagerUaNode.getNamespaceIndex(), "MyAlarm"));

I added translations for the DisplayName attribute

LocalizedText fr = new LocalizedText("Mon Alarm", "fr_FR");
LocalizedText en = new LocalizedText("My Alarm", "en_GB");
alarm.setDisplayName(fr);
alarm.setDisplayName(en);

I set the locale of the UAExpert client

Settings -> Configure UaExpert
General.LocaleId: en-GB / fr-FR / …

and I correctly see the translation of the DisplayName attribute.

Question:
Do you think it is possible to add translations also for the PropertyType Message?
The DataType of Message is LocalizedType, but I would need to set multiple translations.

alarm.setMessage(…);

Thanks,
Francesco

April 6, 2023
13:45, EEST

Matti Siponen

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February 11, 2020

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Hello,

The DataType of Message Property is LocalizedText so it could have different values for different Locales. However, the SDK does not provide built-in support for setting the Value Attribute of Message Property in multiple different Locales. To provide different values based on Locales of the Session reading the Value of the Property, you could use either IoManager or IoManagerListener. For another discussion on this topic, see https://forum.prosysopc.com/forum/opc-ua-java-sdk/differente-translation-in-every-node/

The value of the Message Field in HelpOffNormalAlarmType Events (and all types of Events in general) can not be modified when sending the Event to a Client based on the Locales of the Session that has Subscribed to Events.

April 6, 2023
17:38, EEST

Francesco Zambon

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December 20, 2021

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Dear Matti,

Thanks for your help.

Please can you tell me if this behavior is caused by a limitation of the OPC UA specification or by the SDK?
“The value of the Message Field in HelpOffNormalAlarmType Events (and all types of Events in general) can not be modified when sending the Event to a Client based on the Locales of the Session that has Subscribed to Events.”

Best regards,
Francesco

April 6, 2023
21:46, EEST

Jouni Aro

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December 21, 2011

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It’s due to the SDK at the moment. The idea of LocalizedText is of course that each client would be able to get the texts in their preferred locale.

The localization has not been very important to our customers so far, so we haven’t put much effort in the details. But, I don’t think it would be very difficult to improve this a bit, if you need it. How important are these localization issues for your application?

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