unfortunatelly there is no C++-library with the FS20-functions for linux available. Contronics offers one, but only for the windows environment. Therefore, the whole FS20-protocol, which is not published so far, has to be reengineered.
Best would be, to convince the pluto developers and the IPSYMCON developer to implement a SOAP-interface. Then we could easily close the gap between linux/windows as well as pluto/IPSYMCON.