We got the opportunity to test RMP EtherCAT Software Motion Controller with 63 EtherCAT slave nodes. For this test, we connected the RMP to 63 Kollmorgen AKD Servo Drives and spun all the AKM brushless DC servo motors in a synchronized manner. The EtherCAT network ran at 1KHz (1 milli second). We used the iPC300 unit for the test.
RMP currently supports 128 nodes.