How to use Siemens MPI / DP RS232 programming cable, how to set step7, how to upload the program

1,  check if the programming cable hardware is connected to the computer,
2, check if the driver is installed correctly,
3. Open the S7 software, create an empty project, and then set the PGPC interface in “Settings”. If you are an MPI-USB connected PLC, please select MPI. If you are PROFIBUS, please select PROFIBUS, anyway, and the hardware you installed. The programming cable is identical.
Then return to the project interface, click “PLC” to upload the site, jump out of the dialog box and select “Show” and then select the site you want to upload.