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• Client ID

  • Optional MQTT client ID to use.  If specified this will be used in the MQTT Engine Tranmission connect packet when connecting to the server.  If left blank, a random client ID will be create of the form 'IgnitionTarget-xxxxxxxx-xxxx-xxxx'.

    Warning
    Caution: MQTT Clients IDs must be unique and if two clients attempt to connect with the same client ID, one will be forcefully disconnected from the server to allow the other client to connect.

    
    

• Keep Alive
  • The maximum interval in seconds between any two MQTT protocol control packets sent by the client to the server.
  • If the client is idle and has no control packets to send, it will send PINGREQ protocol packet and the server is required to respond with a PINGRESP packet. If no response is received from the server within 1.5 times the Keep Alive, the client will close the connection.

  • If the server does not receive, at minimum, a PINGREQ message from a client within 1.5 times the Keep Alive, it will terminate the connection and send the client's Last Will and Testament LWT if it has been defined. For MQTT Transmission, this is an DEATH message.

• Random Startup Delay
  • The Random Startup Delay in milliseconds of the form 'min-max' where min is the low end and max is the high end of the random range. e.g. '10-1000'. 
• Reconnect Delay
  • The clients reconnect delay in millisecond.
• Auto-reconnect RPC Client
  • Allow the RPC Client to auto connect and reconnect when publishing from Ignition Python scripts.
• Data Format Type
  • The format of the data to send. Default is Sparkplug_B_v1_0_Protobuf with JSON as an option.

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• Name
  • This is the friendly name of the set used to easily identify it.
• Description
  • This is a friendly description of the set.
    
• Primary Host ID
  
  • The primary host ID to use for 'state' notifications.
  • If configured, MQTT Transmission will subscribe on 'state' notification topics. If   These notifications are used to notify MQTT Transmission if the primary backend application loses connection with the MQTT Server, meaning it has gone 'offline'.  If MQTT Transmission is notified that the primary backend application has gone 'offline', it will close it's client connection with the MQTT server and walk to the next MQTT server defined in the set.  If the primary host ID is not set, MQTT Transmission will not subscribe on the notification topics and not receive any 'state' notifications.
  • This must contain only letters, numbers, or any of the following special characters: . $ % @ ! - _ ^ *

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