huynt Member Join Date Nov 2004 Posts 106 Nov 8, 2004 #1 Dear all I know PC adapter use to download S7 300/400 with MPI/Profibus port, PPi for US S7-200, but i don't know PPI is different PC Adapter?, PPI only is RS232/485 converter, PC adapter have layer two of MPI/Profibus protocol?. Thanks.
Dear all I know PC adapter use to download S7 300/400 with MPI/Profibus port, PPi for US S7-200, but i don't know PPI is different PC Adapter?, PPI only is RS232/485 converter, PC adapter have layer two of MPI/Profibus protocol?. Thanks.