Tag: ppi

Siemens s7-200, usb-ppi communication steps

~ arcozhang ~ Leave a comment

Siemens s7-200, usb-ppi communication steps:
1. Install the USB-PPI driver and look at the serial port generated in the device management. Connect the computer with STEP 7 MicroWIN programming software with S7-200PLC and USB/PPI cable.

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2. Just open the programming software and set the PC/PG interface and select USB.

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3. The computer and PLC are connected to upload/download programs via USB/PPI cable.

Siemens PLC S7-200 and computer communication connection

~ arcozhang ~ Leave a comment

I use the same computer with the same data cable to connect with the PLC, and the PLC224CN PLC connection is normal, why not communicate with a CPU224XP PLC!？

 

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Connect to the computer to set the port. May be USB, maybe COM 2, COM3

Siemens PLC S7-200 is not connected to computer communication:

1, check if the computer has RS232 interface, the programming line and interface are not damaged
Is the USB driver installed and the port set correctly?

2, check if the USB is damaged

3. If there is no problem above, it may be that the communication frequency of the last time the program was written, and the communication frequency of this write is not the same as the communication frequency. At this time, we must use Siemens 5161 card to unlock, reset the communication frequency.

4, if there is still a problem, that is, the communication port of the PLC is damaged.

“Siemens 200 PLC data line selection” problem?

~ arcozhang ~ 1 Comment

PC/PPI programming cable, RS-232/PPI multi-master programming cable and USB/PPI multi-master programming cable What are the differences between the three S7200PLC data cable models, what is PPI, what is multi-master programming

The Siemens S7-200 programming communication cable is divided into two types:
Programming communication cable, PC/PPI, RS232/485 conversion, with optical isolation, maximum 187.5K baud rate, support for multiple master stations;
Programming communication cable, PC/PPI, USB/RS485 conversion, with optical isolation, maximum 187.5K baud rate, support for multiple master stations;

The order numbers are 6ES7901-3CB30-0XA0, 6ES7901-3DB30-0XA0