if you use the mudbus(RS-485) you can connect the computer for data collection.
in the case of RS-232 if not claimed capabilities then probably not, BUT there is a way you can use type converters moxa NPort 5110(I like them but are expensive) or the cheap option:
1) iRZ TE10 (RS232/Ethernet)
2) the ATC-1000
3) iRZ Switch RS232(Cable interfaces)