What is MQTT?

MQTT, or Message Queuing Telemetry Transport, is a lightweight publish (send a message) – subscribe (wait for a message) protocol.

Publishing means that data is uploaded to a well-defined place (called topic) on a central server (called message-broker). Subscribing means that data is downloaded from a topic of the message broker, once it was published there. MQTT hence is an event-driven communication protocol, notifying a subscriber once a data message has arrived on its topic.

What is MQTT used for?

MQTT was designed to be used on networks that have low-bandwidth, high-latency and could be unreliable. Since it was designed with these constraints in mind, it’s perfectly suitable for sending data between devices and is very common in the IoT world.

It is supported by major IoT cloud providers, such as Azure, AWS, Google, but also by players specialized in industrial use cases, e.g. Adamos, Mindsphere, Bosch IoT, to name a few. 

MQTT implementation with Cybus

MQTT is the main protocol of the Connectware data interface. Connectware supports MQTT 3.1, MQTT 3.1.1 and MQTT 5. Although data can be provided to or retrieved from Connectware using most of the supported protocols, MQTT remains the preferred protocol for data exchange with external applications. The advantages mentioned above make MQTT an ideal option for most IoT use cases.

The Connectware MQTT message-broker always runs as a component of Connectware itself and is started automatically. Data access to remote users (i.e. “to the Internet”) can be granted by locally allowing specific users to read or write on specific topics.

Application examples

Use Cases with MQTT

  • Building Automation
  • Cloud Integration
  • Machine-to-Machine (M2M) Communication
  • IoT Use Cases
  • Mobile internet applications
Learn more about industry protocols

Learn More

About the protocol


Scalable data infrastructure for the Smart Factory

Holistic factory connectivity with one single platform

The leading Factory Data Hub Connectware is suitable for the first steps of digitization up to the Smart Factory transformation. In addition to universal shopfloor connectivity, Connectware creates a scalable data infrastructure for digital projects without limits. One single platform for all IIoT projects, independent of applications and vendors.

Connect and implement your whole shop floor

Your direct contact

Would you like to discover what you can achieve with Cybus
Connectware in your factory? We are happy to discuss how you will realize your digital projects efficiently and quickly.

Sales manager

Lukas Theilacker

Book an appointment

Please click on the button to schedule an appointment.

Load calendar

Oops, your browser does not support this website.

Dear visitor, you are trying to visit our website using Internet Explorer. The support for this browser has been discontinued by the manufacturer, which is why it can no longer display modern web pages correctly.
To view the content of this website correctly, you need a more modern browser.

Under the following links you will find browsers for which our website has been optimized:

Download Google Chrome Browser Download Mozilla Firefox Browser

You can still view this website, but you will have to face significant restrictions.

Show this website anyway.