Connections

Refresh Rate

The Refresh Rate determines how often the HMI receives data updates from the backend.

Unit

  • The value is defined in milliseconds
  • Default: 1000 ms → one update per second

Purpose

This setting helps balance between performance and resource usage:

  • Lower values (e.g. 500 ms)
    → More frequent updates
    → Smoother UI responsiveness
    → Higher network and CPU load

  • Higher values (e.g. 2000 ms or more)
    → Reduced system load
    → Slightly delayed visual feedback

Recommendation

Adjust the refresh rate based on:

  • How fast your application needs to react
  • How powerful your hardware and network infrastructure is
2000 ms
500 ms