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• Setup two Ignition systems - a host system installed with MQTT Engine and MQTT Distributor and and edge system installed with MQTT Transmission
  

  By default, MQTT Transmission is configured to connect to MQTT Distributor on tcp://localhost:1883. As the MQTT Distributor is installed on a different server, we will need to edit the configuration to allow MQTT Transmission to connect to the host server.

  Note

  The MQTT Server must be accessible to the Ignition system running MQTT Transmission. In order for this to work port 1883 must be open to outside connections. Make sure this is allowed via your operating system's firewall configuration and any anti-virus software you may have installed. This configuration is not recommended for production systems. If running this in production, you should be using TLS encryption on port 8883. More information on how to configure TLS can be found here.

  Navigate to the MQTT Transmission > Settings in the left side bar of the Ignition Gateway UI and select the Servers tab.

  Change the server URL to point to the server IP address or domain name of the Ignition system running MQTT Distributor and save the configuration.