How-to use Kowl to inspect Kafka messages
When you can’t see messages coming through from the machine, do the following.
Sometimes it can happen that MQTT messages appear out of nowhere and it is unclear where it originates from.
While building the Node-RED flow the MQTT elements failed to connect under deployment.
This provides a step-by-step troubleshooting guide for ifm IO-link masters connected via sensorconnect.