EtherCAT Scan & Association - Couplers & I/O Slices | 05 Jan 2018 | | EtherCAT Scan & Association - Couplers & I/O Slices The following page is an example from the KAS Online Help which shows how to add a coupler to an existing project. EtherCAT Scan & Association - Couplers & I/O Slices