...osition Control Unit with MECHATROLINK-II interface CS1W-NCF71 CS1W-NC@71 Motion Control Units CS1W-MC@21-V1 Motion Control Unit with MECHATROLINK-II interface CS1W-MCH71 Serial Communicat...https://www.ia.omron.com/data_pdf/cat/cs1g_cs1h_cs1w_cs1d_p047-e1_14_15_csm1004120.pdf