How to establish communication between computer and s7-200 with usb-ppi cable

1. Power on the CPU Connect the CPU and computer
2. Open the programming software and click Set PG / PC Interface in the lower left corner
Note here:
(1) If the original Siemens USB-PPI, then select PC / PPI CABLE (PPI)
And set to USB in the properties local connection
(2) If it is a non-Siemens USB-PPI, then set the corresponding COM port in the attribute local connection, such as: COM3, etc.

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