Overview of Heartbeat Verification Demo
In industrial automation systems, the Heartbeat mechanism is key to ensuring communication reliability between devices and monitoring servers. This demo shows how to verify whether heartbeat signals are transmitted normally in a web server environment. The video is as follows:
Core Steps of Heartbeat Verification
1. Configure the Web Server
- Ensure the server has HTTP/HTTPS services enabled and the corresponding ports are open.
- Set the heartbeat sending interval on the industrial instrument side (usually 1-10 seconds).
- The server side needs to deploy an interface to receive heartbeats (e.g., REST API).
2. Perform Heartbeat Verification
- Start the instrument and observe whether it sends heartbeat packets at the set interval.
- Check the web server logs to see if heartbeat requests are received.
- Use packet capture tools (e.g., Wireshark) to verify packet integrity.
3. Result Analysis
If the server continuously receives heartbeats with continuous timestamps, communication is normal; if packet loss or timeout occurs, check the network or device configuration.
Comparison of Heartbeat Mechanism Parameters
| Parameter | Recommended Value | Description |
|---|---|---|
| Heartbeat Interval | 1-5 seconds | Too short increases network load, too long delays fault detection |
| Timeout | 3 times the heartbeat interval | If no heartbeat is received beyond this time, it is judged as disconnected |
| Retry Count | 3 times | Trigger an alarm after consecutive failures |
Common Issues and Troubleshooting
Heartbeat Loss
- Check whether the network firewall blocks the heartbeat port.
- Confirm that the instrument and server times are synchronized to avoid timestamp anomalies.
No Response from Server
- Verify whether the web service is running properly.
- Check whether the interface path and authentication information are correct.
Through the above demo and key points, engineers can quickly master the Heartbeat verification method and improve the communication reliability of industrial systems.