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.
Tag: mpi
Plc300 failed to connect to computer mpi
Prompt that version v8.2 is instilled onyour computer, this setup cannot instill version v2.0 on top of it. . . The computer is equipped with Siemens software. After plugging in the USB cable, the SIMATIC PC Adapter USB in the device manager still displays a yellow question mark, which cannot be safe. What is the reason?
The reason for the USB adapter driver, now the STEP7 5.5 version software has its own USB communication adapter driver, but it can only be used for the original USB communication adapter of Siemens. Those cottage USB communication adapters will appear in your situation. The solution is to change the STEP7 software with a slightly lower version, such as STEP7 5.4, or manually delete the USB driver file that comes with Siemens, and then manually install the driver that comes with your USB communication adapter.
Can the Siemens PLC programming cable USB-MPI cable communicate with the S7-200plc?
no
When does the Siemens plc communication use the cp5611 card?
CP5611 card is generally used on desktop computers, supports MPI, DP-PROFIBUS and other protocols. In addition to USP-MPI, MPI-PPI, etc., the two do not support DP protocol, only PC Adapter, only support data collection. There is also a CP5512 card that can be used to support DP. Now due to the development of industrial Ethernet, the CP5611 is used less. The CP module can be used as a master station, which is the biggest difference.
The USB-MPI+ programming cable is connected to the S7-300PLC. Even if the node is found, the CPU module model cannot be found. Why?
Maybe the hardware version is low, so can’t find the model update hardware version.
Does the PLC cable of PLC200 or PLC300/400 drive usb-MPI+ need to be connected to the PLC to install the driver of its programming cable?
The USB-PPI programming cable of the Siemens S7-200 can be used without the need to install a driver.
The MPI programming cable of the Siemens S7-300/400 needs to run the CD with the product first, install the driver, then insert the MPI programming cable, and the computer will automatically complete the installation.
What is the reason for this dialog box when installing the Siemens PLC S7-300 USB-MPI download line driver?

It tells you that the 5.5 version of STEP7 has integrated a high version of the PC Adapter driver, the version is 8.2, you are equipped with 2.0, the version is too low, the software version can not exceed the existing 8.2PC Adapter driver can not be installed. Do not install, you can directly connect to the PLC with STEP7 installed.
Siemens programming cable usb-mpi how to connect with Siemens plc
Siemens programming cable usb-mpi, one end is USB interface, and computer USB port, one end is MPI interface, plug directly, tighten the fixing bolt with hand or screwdriver.