prolific usb to serial comm port windows 8

In that case, how can I tell if a serial device is a certain device from a specific manufacturer? I'm trying to do this so I can recognize when a scale is plugged in and not some other device, using a Python program to communicate with the scale. VID067B&PID2303 for Prolific USB-to-Serial Comm Port (PL2303 series). Two such scales are the Sartorius Entris and the Mettler Toledo Excellence Plus.ĮDIT: Responses are saying that serial devices do not have a VID or PID. VID067B&PID2323 for Prolific PL2323 USB CDC Serial Port (PL2303G series). I haven't been able to establish a connection with any of them, with all queries to the scales not being responded to. I have tried connecting scales from multiple different brands using a USB-to-Serial adapter, and I get the same result. The adapter I'm using is a USB to UART PL2303 from Prolific Technology Inc. I am coding in Python using the PySerial library, but any general answer would be helpful. Windows will check what COM port are unused or free in your computer and assigns that port number to the device. Note: The COM port assignment of the USB to Serial adapter varies on your computer hardware configuration.

This also means that Windows has assigned the device to COM3 port. Originally authored by: David Roberts, DecemThe Plugable USB serial a. Giannis Antetokounmpo Once Openly Expressed Rafael Nadal Fandom to Fellow Half Greek Nick Kyrgios - EssentiallySportsAmericas Favorites Trending in U. Prolific USB-to-Serial Comm Port (COM3) device listing. Plugable PL2303-DB9 USB Serial Adapter Troubleshooting in Windows. Originally authored by: Bernie Thompson, JWindows 7 will detect and p. Is there some way to find the information for the device on the other end? USB to Serial Adapter, BENFEI USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M 5,281 1059 Save 5 with coupon FREE delivery Fri, Feb 17 on 25 of items shipped by Amazon SABRENT 6-FT USB to RS-232 DB9 Serial 9 pin Adapter (Prolific PL2303) (SBT-USC6K) 1,824 1199 14. Installing the Plugable USB to RS-232 DB9 Serial Adapter on Windows 7. The problem I'm experiencing is that my laptop recognizes the adapter as the device on the COM port, thus when I check the VID and PID of the device, it gives me the IDs for the cable and not the scale. I am attempting to connect to a weight-measuring scale using the following communication line: Laptop -> USB to DB-9 Serial adapter -> Scale.

Prolific usb to serial comm port windows 8