USB/MPI+ V4.0 is the USB to MPI
and PPI protocol adapter, support
S7-300/400 PLC MPI or S7-200
PLC PPI communication. It's the
same as Siemens PC Adapter
USB except that this USB/MPI+
V4.0 doesn't support profibus
communication. Its driver is the
Siemens PC_Adapter_USB driver,
and choose the USB port, not the
COM port.USB/MPI+ V 4.0 is the
optoelectronic isolated adapter for
industrial design. There is antisurging&
anti-lightning protection
circuit for the USB and RS485
interface.