Comparison : Item # ED1S-V-04, E1 400W Drive Voltage Command & Pulse
Item # ED1F-E-04, E1 400W Drive EtherCat
Item # ED1F-H-04, E1 400W Drive mega-ulink
Item # ED1F-L-04, E1 400W Drive MECHATROLINK-lll
Item # ED1F-P-04, E1 400W Drive PROFINET