MQTT configuration

In Configuration → MQTT you can configure at most two MQTT broker connections to use for data and remote management. Having two different brokers is meant for those situations where you need the data to be sent to a broker, while the remote monitoring and management system should reside on a different broker.
When setting up a new broker connection, you need to configure the following parameters:

• Uri: the URI where the broker is located.
  By clicking on the protocol button in the URI textbox you can switch between the supported MQTT protocols:

  • mqtt://
  • mqtts://
  • ws://
  • wss://

  If a secure protocol is selected (as mqtts or wss), the broker host Root CA certificate is mandatory.
  If the gateway can reach the internet, the Root CA certificate of the broker could be automatically recovered from the gateway using the button, otherwise you need to manually update the Root CA certificate in PEM format.
  Client certificate is optional (depending on your broker settings).

• Port: the port at which the broker is listening.
  

• Keep alive: the MQTT protocol keep alive period (in seconds).
  If unsure, leave the default value.

• Use credentials: whether the broker requires a username and a password for the client.