What HMI type

[gendy 0]

Hi Can anybody advise me what type of HMI can i use to work with S7 300 CPU 315 DP the old one was connected in profibus network CPU - ET200 - HMI so the direct connect was with the ET200 -we can modify that- Can I use HMI have port RS232 or 485??

[aggattapauer 2]

you need a HMI supporting MPI or PROFIBUS DP protocol (both RS485). Which HMI are you thinking about or already have you got, which brand?

[gendy 0]

the brand name is Eaton HMi or LG at Eaton HMi it said we can connect the PLC and HMi with the programming cable (rs232 to MPI) but in general if i have port 485 how can i use it? and can i connect it to the ET200 in profibus network? If you know any low price brand name can communicate with siemens what is it?