Video Tutorial
Smart Weighing with MQTT- IND400 in ACTION
The Mettler Toledo IND400 is a smart weighing indicator designed for industrial applications. It supports modern protocols such as MQTT, OPC UA, and Ethernet/IP, making it IIoT-ready for digital factories.What you’ll learn
- How to log in and authenticate with the IND400 using the REST API
- Sending GET/POST requests to read and write data
- Understanding the difference between REST (request/response) and WebSocket (real-time streaming) communication
- Setting up a WebSocket connection to continuously receive live weighing data
- Demo: Visualizing the data in Node-RED
Example REST API Request
WebSocket Example
Global variables defined in POSTMAN:
Applications
- Real-time monitoring of weighing processes
- Continuous data logging into databases or historians
- Feeding streaming data into dashboards, MES, or cloud platforms
- Seamless integration with IIoT and Industry 4.0 architectures
Key notes:
Node-RED Example Code
The Node-RED flow used in the video can be found in the GitHub repository mentioned below:GitHub: Code-and-Compile/Mettler_Toledo_IND400_API
github.com