Multigrid II we are trying to set up parallel. Also have colour control, BMV700 AC coupled fronius 3.kw. All firm ware updated. only thing we have not done is connect AC output of both inverter together as the manual says to set up with units disconnected. When trying to program, first we set up all p[parameter then go and set up master using the appropriate programs ( note we have been setting up off grid systems for 10 years now, but this is our first parallel Multigrid, with gen back up as there iis no mains connected for another 3 months, it will then be set up with mains )