... /MPI,USB/MMPI. S7-300/400PLC the Bluetooth communication suite, use Bluetooth wireless communication substitute traditional PC/MPI USB/MPI ... or touch screen and PLC MPI estuary wireless communication, Bluetooth communication distance 300metres (broaden), serial baud rate 19.2Kbps ... of FOURSTAR: fourstar-dy.com Model: FS-BT-MPI.bluetooth serial adapter. Bluetooth communication cable . for S7-300/400PLC