Siemens 6es7972-0cb20-0xa0 driver installation instructions, if you are not using a special cable, you only need to fully install the corresponding software, higher version. Some low version software does not have integrated chip drivers.
1. If SIMATIC PC ADAPTER USB appears in Device Manager, it means that the driver has been installed automatically and there is no need to install the chip driver anymore.
2, S7-200 PLC needs STEP 7 MicroWIN SP9 can not be lower than SP9
All three indicators are valid, first switch to STOP state, then connect the computer with plc, and then set up the programming software.
3, S7-300/400 series PLC connection. The version must be higher than v5.5.. You can install the driver without installing it.
PLC is first stopped and set up PG / PC, select PC adapter, and then click OK.
USB-PPI+driver download ,Siemens PLC adapter
6es7972-0cb20-0xa0 Driver ,Siemens PLC adapter