Hello guys , I have to work on a serial network to query the devices . Which version do you recommend to wire the 485 or 232 ?
Well, only RS485 and RS422 afaik allow multiple nodes so could be called a network. RS232 is point to point and short distance only
Even point to point, in some settings RS422 is better because the differential signal allows longer cables.
Also What instrument do you recommend for interfacciarmi the serial ?
A serial card. Be careful though, many standard serial cards don't allow speed above 115k2.