Magnus,
The FieldPoint Real-Time Controllers, FP-20XX, and Compact FieldPoint Real-Time Controllers, cFP-20XX, all have a mininum of 1 RS-232 port. The FP-20XX family has 1 RS-232 port. The cFP-2000 has 1 RS-232 port, the cFP-2010 has 2 RS-232 ports and the cFP-2020 has 3 RS-232 ports and an RS-485 port.
Due to timing constraints, you are not likely to be able to simulate a RS-232 port using the FieldPoint Discrete Input or Discrete Output modules.
Regards,
Aaron
LabVIEW Champion, CLA, CPI