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TCP/IP communication between PLCs

  • Anonymous - 2014-06-16

    Originally created by: patrick van ieperen

    Hello all,

    For a project i need several PLCs (codesys 3.5) communicating with each other. We like to do that with TCP/IP.
    We have to transfer structs with information. The structs contain arrays and normal variables.
    The CAA Net Base Services looks the perfect library.

    I downloaded the example program in the Codesys store. Every thing runs fine on a local soft PLC.

    But when i make a project in the controller it self, the library gives a lot of errors.
    When i choose "try to reload library" i'll get a pop up that the library is not installed om the system.

    Does this mean that this library is not installed for this type of PLC?
    Is the TCP/IP communication always availible on every type / brand of PLC in code sys 3.5?

    regards Patrick

  • eschwellinger

    eschwellinger - 2014-06-20

    maybe this FAQ should explain why this could happen:
    l viewtopic.php?f=22&t=5641&p=10085#p10085 l
    Looking forward for 3.5SP5 to have a really good solution for this.
    Which plc and which version of it are you using (the placeholders in the devicedescription are responsible for the library versions)?


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