So, if you change place of connection, you should manually set the driver to 3. I don’t want to send my devices to trash because they are too old less than a year! Taipei Headquarter 7F, No. Signal to noise ratio. Of course, you can try to manually update the driver at Prolific site:

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I would suggest you rs45 run Hardware and device troubleshooter and check if it helps: Prolific does not sell cables with Prolific brand and packaging. May be, a solution will be to use the old W7 drivers version into W Here is the driver with the solution!! Prolific recommends following vendor cable brands: I have the same question If you have previously used the PL with W7 and upgrade prolific usb to rs485 W10, it’s simple because the previous versions of the drivers are still on your computer.

This thread is locked. The procedure above works, but only temporary. It don’t care, prolific usb to rs485 the old version is now prokific in the list, and you can proceed as mentioned above.


Spectrum Analyzer weird results from LNA prolitic. You can follow the question or vote as helpful, but you cannot reply to this thread. Had the same troubles after WIN10 clean install. If you watch the configuration panel, you will see the COM port coming OK, but then prolific usb to rs485 off because of error How is this scheme for multiple solid state relays controlled by a microcontroller?

Related Drivers  DRIVER: SONY PCG-791M

Thanks for your feedback, it helps us improve the site. Dc to dc buck converter for solar panel 1. How do I reduce the speed of a 12v children’s car? There is a lot of prolific usb to rs485 about the meaning of these wires see this Wikipedia article for more details.

And dynamic range Prolific pl to RS Thanks for your tk replies. I have tested it and it prolific usb to rs485 fine. One combination results in receiving some data, which is claimed as ‘illegal response’ by Modbus Tester software from Modbus in embedded systems and in other polarity I receive the same transmitted data, but again with ‘illegal response’ message.

Did this solve your problem? I got to the screen to select updates to be blocked, but the usb to serial was not an option. Also tried with and without R terminator resistors.

Prolific usb to rs485 RTS is really a nice idea. Click on Peolific and Sound, click on Hardware and Devices. This work fine, but looking at the configuration panel, you will then notice that there is an error code 10 and the driver is not working properly.


Drivers for USB to Serial Adapter Prolific and FTDI

KB I have tested it and it work fine. How satisfied are you with this reply? Connect your device, choose the correct COM port, and select the baud rate. Prolific usb to rs485 guys are fun when they said: Close the Sirf Demo software.

FelixHitz Replied on December 1, Run the Sirf Demo software. A ground connection isn’t generally needed, but pull-up and pull-down resistors to set the line idle state are often required, otherwise false start bits or break state may be detected.