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    Serial data source causing crash

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    • R
      Robmalone last edited by Robmalone

      Hi all,
      I just deleted a data source (modbus IP) that I was using for testing purposes. Mango then crashed/shut down and now wont load. It gets to 40/50% and gives and error Unable to load /mango/status/ status:0

      The cmd window closes and there are no errors in ma.log.
      No other changes were made to mango or java.

      Mango version is 3.7.7.
      Java Version is AdoptOpenJDK 11.0.6.10

      EDIT: This appears to be a serial/com port issue. I have set up some modbus serial data points but when I enable the data source Mango crashes. It wont restart until I delete the database. No errors in ma.log, it just crashes when starting data sources.

      EDIT 2: I have tried a USB to RS485 converter in case it was a com port issue but it is also crashing Mango when I enable the data source. I have confirmed the converter is working using ModbusPoll on the same PC and slave device.

      Any Ideas? Thanks

      Rob

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      • CraigWeb
        CraigWeb last edited by

        Hi Rob

        Can you have a look if there is a pid_error file in your mango directory after the crash.

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        • R
          Robmalone last edited by

          Hi Craig, There is indeed! WIll I post it?

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          • CraigWeb
            CraigWeb last edited by

            Hi Rob can you email it to us.

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            • R
              Robmalone last edited by

              Done. Thanks Craig.

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              • C
                chrapchp last edited by

                I'm getting this as well.

                I restored from a windows crash and using the recommended AdoptOpenJDK JDK. I was using the old JDK from Oracle prior. I now get this error and I know the port works fine as I can communicate using a modbus master tool.

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                • R
                  Robmalone last edited by

                  @chrapchp Have you tried going back to Oracle JDK? I ended up using a Modbus gateway.

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                  • C
                    chrapchp @Robmalone last edited by

                    @robmalone Mango did not even what to start up with JDK 1.14. I did recover the old jdk I was using on the crashed system and will revert to that.

                    thx

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