Siemens S7-200 PLC


Thread Starter


Hi All,

We are using Siemens S7-200 CPU 226 and to connect to PC we have PC/PPI card with USB interface. We are able to upload & download the program using STEP7 programming software via the PC/PPI USB cable, but we are unable to connect to SCADA. In SCADA we have to assign a particular port number for the communication to happen. But when we check the Device Manger properties, we find Siemens PC/PPI Card but without any COM port number. Could anyone just let me know which com port the PC/PPI USB cable has occupied??