Hi Yu-Wen,

Tested the initial program as the last modified program which we had with TCON had some errors when I pressed PUBLISH.

After a long struggle finally I am able to transmit the data's to and from the mosquito MQTT Server using TIA Portal V15.

Now I am at the final stage, I need to connect to an online free dashboard to connect it to my PLC. I am using a online free "Freeboard.io". I am facing few difficulties while linking the server to the dashboard.

Below  are my entries, PLEASE ADVICE ME ON THE CONNECTIONS;

1. TYPE : MQTT

2. NAME :  ( Any name )

3. TOPIC :  qwerty ( Advice )

4. SERVER : 37.187.106.16 ( Advice )

5. PORT : 1883 

6. USE ENCRYPTION : NO

7. CLIENT ID : mqttdemo  ( Advice )

8. API KEY / USERNAME : steve

9. PASSWORD : john

10. JSON MASSAGES : no

I have attached the screen shots for your reference please advice.

Thanks 

Regards

Satheesh

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Split from MQTT Client Application Example for SIMATIC S7-1500.