AVEVA™ PI System™ Feedback Portal

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Status Declined
Product PI Connectors
Categories PI Connector for UFL
Created by Guest
Created on Aug 18, 2022

RELATED IDEAS

UFL Timezone Conversion

Supported timestamps are currently limited to Local or UTC timezones. Data sources may not be configurable to provide timestamps in supported formats. There currently exists no robust or simple way of converting between timezones using the UFL syntax or configuration.  Including custom daylight savings time logic in ini files for this is not a maintainable solution. DST rules change over time and vary from region to region. With the current limitations I am currently having to maintain more than 20 ini files with custom DST logic for our global operations. Including functionality to accommodate for the timezone formatting limitations of data sources would be appreciated.
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  • Admin
    Alan Izar
    Reply
    |     Jul 18, 2023

    Declined - At the time we will not be implementing this idea since it does not align with our current data collection strategy.

  • John Messinger
    Reply
    |     Aug 18, 2022
    This would be a useful feature, though I'm not sure how it would be implemented. We're working with a customer to process files generated in 2-3 different US based timezones, but importing the data into a PI server in Australian Eastern Standard timezone.
  • Guest
    Reply
    |     Aug 18, 2022
    I believe UFL could take advantage of .NET and it's time conversion capabilities. I am not sure if one can parse a string in whatever time zone you need in .NET, but for sure we can parse a string as UTC and convert back to the time zone needed. All this is using Windows timezone registry info which is normally up-to-date and fairly complete (covers history as well)
  • Guest
    Reply
    |     Aug 18, 2022
    In a nutshell, we would need access to Windows' timezone table to pick and choose timezones at runtime. That is, when PI UFL reads a file, from the file header or name it infers which time zone data in the file is in, then it looks up the timezone (one lookup per file). Once it finds the timezone, it goes on reading all data lines from the file, parsing timestamps in the timezone found. Then, when sending to PI it could convert to UTC and send as UTC timestamps (/utc flag). That functionality would be great
  • Devin
    Reply
    |     Aug 18, 2022
    Just wanted to ping this thread again. It's over 2 years since this issue was raised. 2 YEARS!!!!! Dealing with DST is basic functionality critical to this connector being practical.