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    Please Note This forum exists for community support for the Mango product family and the Radix IoT Platform. Although Radix IoT employees participate in this forum from time to time, there is no guarantee of a response to anything posted here, nor can Radix IoT, LLC guarantee the accuracy of any information expressed or conveyed. Specific project questions from customers with active support contracts are asked to send requests to support@radixiot.com.

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    Choosing "Data Sources" returns "Server Error"

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    • J
      jleblancmango
      last edited by

      Trying to add Modbus data source finds source on search but doesn't allow
      next step.

      Any Ideas?

      1 Reply Last reply Reply Quote 0
      • JoelHaggarJ
        JoelHaggar
        last edited by

        It would be helpful if you posted the details of the error as this is too general to help you. One thing to try is to delete the MA_HOME/work folder and then refresh the page. Deleting this folder will cause Mango to recompile the jsp pages and might resolve your issue. If not look in your /logs/ma.log file for more details on the error.

        1 Reply Last reply Reply Quote 0
        • J
          jleblancmango
          last edited by

          There is no other details. input modbus ip address port 502 hit search. Finds
          modbus slave and reports with message saying it found data source. After that
          nothing happens, "Next" button never gets activated

          1 Reply Last reply Reply Quote 0
          • JoelHaggarJ
            JoelHaggar
            last edited by

            I don't think there is anything else supposed to happen with Modbus scan tool. Modbus protocol has no way to know what data points exist on a device so you have to manually add them. The scan tool is just to help identify device ID's on the network but that's about it. Here is a good place to start on how to Manually add in Data Points https://help.infiniteautomation.com/configuring-data-sources-and-data-points/

            There are also other ways to bulk add them.

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            • phildunlapP
              phildunlap
              last edited by

              The modbus scan tool on the modbus data source page is actually just sending read holding register 0 requests to all slave ids and seeing which respond appropriately. Just chiming in to say it indeed does no discovery, but also add that if your device doesn't respond or errors with reads to that register it won't appear in the list.

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              • P
                psysak
                last edited by

                I have this issue as well right now for some reason on an ES

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                • P
                  psysak
                  last edited by

                  Aaannd for anyone else who finds this, as Joel stated, delete the /mango/work directory, all is well

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