I wasn't aware that this was available but it appears that it can be used in conjunction with the SCP (System Control Panel) or in place of it to control everything. Only for the recently redesigned SW series equipment that was released in the last couple of years.
Xantrex Combox (http://xantrex.com/power-products/default/conext-combox-freedomsw)
Priced at $300 (http://shop.pkys.com/Xantrex-Conext-Combox-Communication-Box-fFreedom-SW-Series-InvertersChargers_p_3616.html)