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

Radix IoT Website Mango 3 Documentation Website Mango 4 Documentation Website

  • I have got Mango installed and working. (I think) however to add a Modbus Data source I get this.

    Comm configuration error. Check that rxtx DLL or libraries have been correctly installed.

    I appreciate any help anyone may have to help me resolve this issue. I am very new to this level of computer terminology, and manipulation. So I may need further explanation of some terms. Again Thank You in advance for your help.

  • Crucial to getting this to work is knowing what your operating system is and whether it's 64 or 32 bit.

    If you're running on a 32 bit operating system, you can get the files you will need at the RXTX site: If you're running 64 bit, they'll link you over to Mfizz RXTX:

    For windows, all you need to do is unzip the download and put rxtxSerial.dll into your /mango home/overrides folder.

    On Linux, it is essentially the same, only with the in the corresponding linux folder. I can't recall at the moment if that is the only step, I think you may have to

    sudo apt-get install librxtx-java

    And that's all there is to it!

  • I greatly appreciate your help! I have no errors when trying to create a modbus serial data source now. I placed the files into the correct java folders, however I didn't realize that I needed to place into Mango/overrides.