Solution
This error is typically seen when multiple EtherCAT Chassis are daisy chained. When setting up these systems, you will need to connect the Ethernet port labeled “Out” on one slave to the Ethernet port labeled “In” on the next slave for it to work correctly. LabVIEW will display this error if these ports are wired incorrectly. Therefore, in order to successfully switch modes of your EtherCAT system, ensure your chassis are properly connected together.
Note: This error can also be seen when the firewall settings on the computer interfere with communication to the EtherCAT slaves. If you have checked that the ports are connected as outlined above and are still seeing the error, try turning off all firewalls on the computer and connect again.