Well, in light of the fact that you are in Europe, you really shold be looking at Profibus. You know the saying, when in Rome, do as the Romans do.. Profibus is the Fieldbus of Europe. Chris Eddy, PE Pioneer Microsystems, Inc. Morgan Olsson wrote: > For an upcoming project I am investigating serial buses. > > What I have covered so far are RS485, I2C and CAN. > > Right now I am looking on Ethernet and USB. > > Questions: > > 1) Anybody got a pointer to where to learn about ethernet protocol and bus? > > 2) Are there more buses I like theese above? > > Thanks in advance > /Morgan > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% > Morgan Olsson ph +46(0)414 70741 > MORGANS REGLERTEKNIK fax +46(0)414 70331 > HDLLEKES (in A-Z letters: "HALLEKAS") > SE-277 35 KIVIK, SWEDEN mrt@iname.com > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%