Internet of Things protocol can optimize cellular data transmission via MQTT’s publish-subscribe messaging system, transferring rationed data at critical times by way of a message broker

The two-way communication of MQTT enables the publisher to send data to the broker, which can then be pushed to the subscriber worry-free, rather than having the subscriber poll the publisher constantly. This protocol dramatically reduces data usage on a cell plan.  The client can subscribe to tagged values from multiple SCADADroid®s, as well as publish to the SCADADroid® with any adjusted setpoints

MQTT Telemetry

  • Broker service available for low monthly fees, or set up a third-party broker on the web browser configuration page
  • Choose your monitoring and report intervals; set up procedure for MQTT integration with Modbus and I/O Functions
  • Configuration of Events allows for use of MQTT protocol in server reporting, and client publishing
  • Last known values preservation guarantees the survival of critical data in the case of connection failure
  • MQTT is encrypted via the message broker and does not need a VPN to operate securely
  • Topic strings are legible subject-lines connecting servers with selected clients via MQTT Broker
  • Real values instead of percentages displayed through Modbus-driver tag upgrades
  • App Interface programs for streamlined MQTT reporting

MQTT handles information by having a client (a client being a device with the authority to both publish and subscribe) subscribe to a topic through the MQTT broker. At an event, the publisher (i.e. the SCADADroid®) sends a message to the broker with a Topic included in the string. The broker will then push the message out to all the clients that have subscribed to that topic. This message can be sent to as many phones or computers that have subscribed to the desired topic, from the Broker as appropriately prioritized.

Download the SCADADroid® MQTT datasheet as a PDF

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Download the SCADADroid® MQTT datasheet as a PDF

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