Checking Time Synchronization of Automotive Ethernet Ports on NI Device

Updated Mar 7, 2024

Reported In


  • PXIe-8521



Programming Language

  • LabVIEW G
  • C

Issue Details

I experience timing issues between Automotive Ethernet ports or want to check if my ports are synchronized properly. How can I check that?


There are multiple ways to check whether two Automotive Ethernet ports are synchronized. You have the following options:
  1. Use the XNET Wait (Ethernet Synced).vi. This VI waits for the Ethernet interface to synchronize with the network.
  2. You can also use the Interface:Ethernet:Time Sync:Port:Sync Status XNET property to check the current state of the port synchronization. This property is also great for troubleshooting due to the detailed information it provides about the connection status.
  3. There is also the Interface:Ethernet:Time Sync:Port:Synced? XNET property which returns if the port is synchronized.
Refer to the links above for detailed information about synchronization states on masters or slaves or connection status information for debugging.

Additional Information

The help documentation for C-Programming can be found under the following links: