MQTT connection boost

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  • #6700
    AvatarRoland
    Participant

    Hi,

    I have a question about the mqtt communication. I am using mosquitto broker and have set up a publisher to send 100 messages without any delay inbetween. Once the sending finishes, rapid scada still receives incoming data. I think, it receives approximately 10 values from the publisher in every second. Is it possible to boost this up somehow? Is it possible to achieve ~100 or more mqtt message receiving in every second?

    Thanks.

    Roland

    #6710
    MikhailMikhail
    Moderator

    Hi,

    Try decreasing the delay parameter for the device in Communicator.
    It’s here http://rapidscada.net/doc/content/latest/en/software-configuration/communication-with-devices-files/comm_line_req_en.png
    This should increase polling rate.

    #6711
    MikhailMikhail
    Moderator

    I’m not sure, but may be MQTT is not very fast communication protocol. To compare, try the Modbus example and measure how many messages you can receive per second.

    #6712
    MikhailMikhail
    Moderator

    Also, set all data and log folders in C:\SCADA folder as exception for anti virus system, because it checks every file after every change.

    #6713
    MikhailMikhail
    Moderator

    And you should write the results after changing something in the system to understand which approaches work.

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