Coect Alesis DM6 to PC with Studio One via USB cable

i want to coect my electronic drum kit (Alesis DM6) to PC and use Studio One 3 to trigger midi drum sounds

from my research so far it seems doable..........

But I cant work out if I go from my DM6 (via USB B coector) to a my audio interface (I have an Alesis I02 Express ) and then to PC. If this is the case I cant seem to find a USB B cable that goes to MIDI

or go from DM6 straight to PC via USB cable

Do i need any additional software too?

thanks