| title | Using Foxglove to Visualize Ethernet/IP data |
|---|---|
| blog_post_url | https://foxglove.dev/blog/use-foxglove-sdk-for-real-time-industrial-plc-data-visualization-and-playback |
| short_description | Using Foxglove data, it's easier than ever to stream time series data. In this project, we show you how. |
In this tutorial, we implement a simple script to stream values of Ethernet/IP tags to Foxglove. The example includes a simulated plant to demonstrate this proof of concept.
Run pip install -r requirements.txt to install dependencies for this tutorial. We depend on cpppo for simulating an Ethernet/IP device, and pylogix to run the simulated plant and read the tag values for our Foxglove bridge.
Make sure you’ve cloned the repository and installed the dependencies from the previous section.
Navigate to the server directory (foxglove_sdk/ethernet_ip_integration/server) and execute these two scripts in separate terminal windows:
python3 eip_server.py
python3 run_plant.py
After the plant is started, run the foxglove_eip_bridge.py (located in foxglove_sdk/ethernet_ip_integration/):
python3 foxglove_eip_bridge.py
If successful, it should start Foxglove server and show the following output:
2025-07-04 18:18:52,547 [INFO] Started server on 127.0.0.1:8765
2025-07-04 18:18:52,548 [INFO] Starting EtherNet/IP to Foxglove bridge
2025-07-04 18:18:52,548 [INFO] Connecting to PLC at 0.0.0.0
2025-07-04 18:18:52,548 [INFO] Streaming 35 tags to Foxglove
To view the data, start Foxglove and open a new connection to ws://localhost:8765. If everything is well, you will see several topics derived from EIP tags. Now, you should be able to load different panels and view the data. You can use a layout in foxglove_sdk/ethernet_ip_integration/layouts/eip_layout.json.
Alternatively, you can open our logged MCAP file and view our recording of a simulated run.