SMA Communications

HI
I have 4 SMA inverters, 3 SWR2500U and 1 SWR1100U inverter and all have displays. What is the best and most cost effective way to provide real time communications to a pc with these inverters. I want to be able to monitor real time information and be able to store the information in chart or graph form. Is powerline already built into each inverter?
I have 4 SMA inverters, 3 SWR2500U and 1 SWR1100U inverter and all have displays. What is the best and most cost effective way to provide real time communications to a pc with these inverters. I want to be able to monitor real time information and be able to store the information in chart or graph form. Is powerline already built into each inverter?