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Support for modbus rtu over tcp/ip


  • Hi,
    I would like to see support for modbus rtu over tcp/ip. I dont know how common it is to use this type of modbus. There is a nice 4-port converter from moxa that i use quite often and its name is "NPort 5430".

    /Tomas


  • Hello Tomas,

    Mango already supports Modbus RTU over TCP and UDP.


  • Aha, thats great. I must have missed that part =). I will take a look at it.
    Thanks alot for the info.
    /Tomas R


  • @mlohbihler said:

    Hello Tomas,

    Mango already supports Modbus RTU over TCP and UDP.

    I try to configure a gen-set controller without success.

    Testing with modpoll using "Encapsulated Modbus RTU over TCP" works fine, but i can't do it with Mango.

    AFAIK, RTU over TCP uses a header different than Modbus/TCP. I need a new data source type? I try with Modbus IP without sucess.

    Best regards,

    David Parra


  • How do you configure Modbus RTU over tcp? I do not see a setting for it.


  • @jmalkoff said:

    How do you configure Modbus RTU over tcp? I do not see a setting for it.

    I found it, you have to create datasource Modbus IP and check Encapsulate field. It works fine.