MQTT Subscriber Client in AppBlocks | Voters

MQTT Subscriber Client in AppBlocks

Catalin Constantinescu

Is it possible to define a subscriber type MQTT client in AppBlocks? For publisher clients there is a block, but for subscriber, no? Can you help me with some advice?

April 8, 2025

Jimmy Hu

Hi thanks for reaching out. We have added an example that illustrates how use the "On MQTT Notification" block which will be triggered whenever the device gets a message for the specified subscription topic.

Here is the example

Catalin Constantinescu

Jimmy Hu thanks, but something is not working like this; I tried this before, but the notification does not activate if the data is transmitted to the MQTT server by another publisher client, not by the Tibbo PLC. My application is relatively simple. I want a PLC output to activate when a publisher client implemented on a computer (not on Tibbo) sends me a certain message on some topic.