Problem with MQTT

[supportPHJ4A]

[ FlexSim 23.2.3 ]

Hello, When I use FlexScript to establish an MQTT connection, sometimes the connection can become unstable and disconnect. When the connection is restored, FlexSim will reconnect, but FlexSim will not automatically subscribe to messages after reconnecting. If the model is in a stopped state at this time, is there a way to make FlexSim automatically subscribe? Or, besides ondrawtrigger, is there a trigger that can trigger logic when the model is in a stopped state?

[Jeanette_Fullmer]

@Luciano Cavallero, @Tancredi Canonico, @Fiorenzo A, can you please take a look at this emulation-related question?

[jason_lightfootVL7B4 · Accepted solution]

MQTT should handle the disconnect/reconnect for you but you should set cleanStart to 0 when you initialize the client and make sure you're using a clientID string that isn't empty.

Also you shouldn't need a loop (which you seem to be asking for) - the messaging is handled asynchronously once subscribed, independently of any draw/model events.

[tancredi_canonico]

Are you using the MQTT class or MQTT connection in the Emulation module?

[supportPHJ4A]

Thank you for your reply.

[supportPHJ4A]

Yes, it is.