Hello, Normally I used S7-1200 and Iso over TCP, now customer wants to have S7-300 As I understood I need to use MPI comms, but which one to select: - S7 MPI direct - S7 MPI Hmi adapter I have found old Siemens USB/MPI converter and started testing. Physically I can see 1 COM port and 1 USB port. Un...