Tutorial SICK ConnectX (SICK AppEngine) - Convert PLC data to MQTT

Convert PLC Data to MQTT with SICK ConnectX | Step‑by‑Step Tutorial

In this tutorial, you’ll learn how to seamlessly convert PLC data from Ethernet/IP to MQTT using SICK ConnectX running on a SIM2000 device.
We walk through the full setup—from configuring fieldbus and MQTT connections, creating bitmaps, mapping parameters, and setting endian formats, all the way to testing the communication in CODESYS and MQTT Explorer.

What you’ll learn:

• How to configure Ethernet/IP communication in SICK ConnectX
• How to set up MQTT publishing and subscribe to topics
• How to create and map Bitmaps between PLC and MQTT
• How to send data from the PLC to MQTT and from MQTT back to the PLC
• How to validate the data flow using CODESYS and MQTT Explorer

Whether you're integrating machine data into dashboards, cloud applications, or analytics—this guide shows you how to get your PLC data where it needs to go.

Chapters:

1. Hardware architecture
2. Setup SICK ConnectX
3. Prepare and send data from PLC
4. Verify values in MQTT Explorer
5. Sending data from MQTT to PLC