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Use Case 02: Led Waterfall

Led Waterfall is a educative use case with a simple concept and easy to reproduce. It was first deployed in the LocalSEA testbed of CEA List, then its components was dockerized using Docker to be able to test in other environments.

Description

Given a waterfall consisted of multiple stairs. When pouring the water into a stair, the water will go down stair-by-stair until the final one. The use case mimic the mechanism of the waterfall.

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Figure 1. Devices used in the PAL use case

There are five software components using five network protocols: CANopen, Modbus TCP, OPC UA FX, ROS 2, and EtherNet/IP Class 1, represent five stairs of the waterfall. When a trigger send a message to a stair, it will trigger its lower stair by sending a message to it. For example, when the stair OPC UA FX is triggered, it will trigger the stair ROS 2; then, the stair ROS 2 will trigger the stair EtherNet/IP.

The content will be fully available on the 30th June 2025. Stay tuned!!!