MQTT connection boost

[Roland]

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

[Mikhail]

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.

[Mikhail]

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.

[Mikhail]

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.

[Mikhail]

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

[Author]

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