hello
i'am a student in automation and i had a training in a cement factory , they control the process whith PCS7.
i just want to ask you :what type of protocol is being used to connect the engennering station and operator station and the main plc s7-400 ?
is it profinet of just another type of ethernt ?
note :
on the s-400 controller there is a cp443-1
and i/o ET200Mis linked via profibus DP