6ES7901-3DB30-0XA0 can’t communicate

s7-200 plc software version STEP 7 MicroWIN SP6. PG/PC interface setting: PC/PPI cable(PPI), tried both baud rates 9.6 and 19.2, the PC side is connected to the USB port, the s7-200 side is connected to the Port0 port, and communication is not possible The USB cable needs to install for the driver.When the USB cable … Read more