The answer is simple by default wine is not connected to any. cd ~/.wine/dosdevices then ln -s </dev/serial port you want to use> com1 And so on for all the com devices you want access able form inside wine. Yes this still needs adding to winecfg. Before you get too far using the PLC I would recommend checking out the Native Linux options. http://plc.sourceforge.net/ People forget a lot of embedded development is done on Linux systems. There is more plc software for linux than what is just listed on that one site.
