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DataArray_to_V8 returned empty value

Created by: ThaKibosh at: 11/2/2023 8:45 AM (1 Replies)

11/2/2023 8:45 AM	Rate (0)
ThaKibosh Bronze Member Joined: 5/31/2011 Last visit: 1/17/2025 Posts: 190 Rating: (31)	Hey All, When I look at the "trace" of the WinCC Unified v18 runtime there is one message that is continuously coming in: VariantToV8Converter -> DataArray_to_V8 returned empty value! Does anyone has a thought what this is and how to fix it? Thx I'm at WinCC Unified V18 Update 3 Runtime is a "MTP1200" in simulation on a Windows VMware. I don't have the actual hardware here. Just learning Unified scripting. And yes, the MTP-runtime is also at the latest TIA version with update 3. Attachment TraceViewer.jpg (246 Downloads)

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11/2/2023 9:04 AM	Rate (0)
Stefan Arcularius Platinum Expert Joined: 1/21/2013 Last visit: 1/24/2025 Posts: 3462 Rating: (543)	Hi ThaKibosh, You do not need to worry about these messages. The severity of this message is 'info' and should not be displayed by default. It looks more like a misconfiguration of the default trace profile. There may be other reasons for the message, but I have observed this for every alarm handled by "GetActiveAlarms" or "AlarmSubscription". Kind regards Stefan

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