Re-Scan and Change Coupler/Slice Associations

Coupler or slice associations must be updated after the following actions.

• Changing the physical network topology by adding, moving, or removing I/O slices attached to an EtherCAT***EtherCAT is an open, high-performance Ethernet-based fieldbus system. The development goal of EtherCAT was to apply Ethernet to automation applications which require short data update times (also called cycle times) with low communication jitter (for synchronization purposes) and low hardware costs coupler
• Changing the associations between physical and project I/O slices.

To update the associations:

1. Re-scan and re-discover the physical network topology.
2. Click the Modify button to expand the Discovered Devices and Modules view.
3. Drag-and-drop the project coupler and/or slice(s) to associate them with the physical couplers/slices.

• 
  

• After changing the association of an EtherCAT device, you have to recompile the project and download this new version to save your modifications on the target.

See Also