Download Prolific Usb To Serial Driver Windows 11
Raymond Freedman
@azzido no problem, windows 11 always updates drivers if newer cones out if the software don't see the programer it's easy just removed the recent update driver by windows 11 and all will work perfect. The drivers I provide are from the pl2303 maker so the latest for Windows 11 and 10. Regards
For reference, I attache the 2 drivers that work for me to this message. Only one is needed, just that they have different install methods (one is .exe and the other is right click on the INF), if you run the .exe version and you already have another version of the driver it will ask you if you want to uninstall (which I usually do) and then run again the .exe to install the driver.
I have successfully downloaded programs to 8 systems using laptop (Lenovo 510) running windows10 and visilogix 9.8.65. I installed drivers once only. No problems after that. [ note: V130 cable is USB to serial port adapter + mj10-22-cs25 + modem cable to port 1 on V130.]
HOWEVER-Yesterday went to site with same laptop and same cables to download . No luck ! We ended up with errors on both the V130 and V1210. Both had unsuccessful downloads.
Yes, this is almost certainly a Windows 10 updating issue. Do these PLCs have Ethernet cards installed? If so, you might consider doing all the updating by Ethernet. I do this routinely and generally recommend an Ethernet card as part of the system integration.
However, I had problems with the USB to COM driver once due to interference from the computer's power supply.
It was powered from a different power than the machine to which it was connected.
Disconnecting the power supply from the mains and running on batteries solved the problem in this case.
On Joe's comment about the programming computers, I also have some systems that are complete standalone dedicated for a particular job. They are not connected to anything, hence have no security risks. But they are the only way I can get some older things to work properly, now that "modern" thinking has over-ridden perfectly good stuff.
I use a MacBook Air since day one. Installed parallels desktop and running windows 7 on the virtual machine. The windows 7 is set up with no internet connection. Runs without ANY glitches. Check my emails and web on the Mac side, do the plc stuff on the windows side. The battery lasts 7-8 hours, it is way more durable than most pc (hard aluminum shell) weights 2.2lbs. I use it in a very dusty environment. The best setup in my opinion.
I have a device (R31D) that read RFID card with USB port(convert serial port to USB port). When I connected it to my computer, ( windows 8.1 - drivers update - X64 ) , It does not work .
When I checked it in device manager it shows small yellow alarm on Prolific USB-to-Serial port(COM3). and when I want to connect to my device with putty. show this error : unable to open connection to COM3. Unable to open serial port.
I have developed a code in LabVIEW 2011 to communicate with XY linear stage. It's actually two stages mounted perpendicularly. The setup of the system is that a joystick (made by the same manufacturer as the stage) is connected to the USB port of the computer though a USB to Serial converter. One stage is daisy chanied to the joystick and the other stage is daisy chained to the first stage.
For the purpose of our application, it's required to continuously check the status and position of the X and Y stages. Because the joystick also returns responses when a request sent to all devices, I need to send the requests individually; i.e.. one request per command per device making it total of 4 commands. This takes care of the error received from the joystick. The issue, though, is that after a while either the program freezes or the computer crashes and restarts. It happens about 13 minutes (in average) after the program starts. It also happens even when no move commands are sent to the devices. I have put to 50 ms delays before sending each two commands (position and status) per device. Basically, the app waits for 50 ms before sending two commands to X stage and receiving the response and when all is done with X stage, it waits for another 50 ms to do the same for Y stage. This procedure should goes on until the app is stopped. But as I said, a problem occurs. Now, I am assuming the problem is that the serial port buffer overflows. It's not preferred to increase the delay time, but if it helps resolve the issue, then I have no other option!
AFAIK a buffer overflow should only generate an error at the device level (e.g. OVERRUN). When the computer crashes usually the culprit is the device driver, not the application. I suggest to try with another USB-serial adapter.
Most adapters feature either a FTDI chip or a Prolific chip. Personally I had more problems with Prolific than FTDI. However the performance could also depend not only on the chip but on the specific driver implementation.
Thanks for the reply! Just to give you some more info, I am using Windows 8 Home Edition OS and a Prolific USB-to-Serial converter. The driver for the converter updated and I have a feeling it's when the issue started. I'm not sure if rolling back the driver might help.
I have found recently that multiple Prolific USB to serial converters on the same buss or hub will eventually fail. Even if your computer has four USB ports they could all be on one USN hub internally.
What I have had to do is plug one adaptor in to the front USB ports and one into the rear USB ports. But of course there is nothing that says that will always work, it just happend that the fron and rear ports are on different USB busses in teh computers we use.
The USB to Serial adapter I have has two serial port ends, so I get two serial ports from one USB port. However, I only need one and the other serial port is always free. The one I am using is manufactured by Manhattan.
It is confirmed that counterfeit (fake) PL-2303 USB to Serial Controller ICs using Prolific's trademark logo and device drivers were being sold in the China market. Counterfeit IC products show exactly the same outside chip markings but generally are of poor quality and causes driver compatibility issues. We issue this warning to all our customers and consumers to avoid confusion and false purchase. Only buy from Prolific authorized distributors.
I bought this adapter from Unicorn Electronics in New York state. Unfortunately, I don't have the package anymore to confirm if it's made in China. Any thoughts if switching to a FTDI chip adapter would resolve the issue?
Several years back I had a problem with a prolific converter and windows vista. 10-20minutes would cause a BSOD and the crash log traced it wown to the driver dll. I replaced the converter and all went away.
I have several serial adapter CH340 or CP210x with a small problem which is that with these the server boxes are blocked at startup if the adapter is connected
By cons I have a very old PL2303 adapter that works but the latest driver is no longer compatible with Windows
what could you advise me?
Problem is by exemple a CP210x ( cneutec.com CNT-0038 ).
When i plug the 3 wires to my wr1200js cannot start
When i plug the power supply. not serial port connected i connect only after the serial port.
CP2014 or CP2012N
pololu.com Pololu - CP2104 USB-to-Serial Adapter CarrierThis USB-to-serial adapter lets you easily connect a TTL serial device to a PC by acting as a virtual serial port. The board is a Micro-USB carrier for the Silicon Labs CP2104 USB-to-UART bridge that provides access to all of its control signal pins...
The majority of FTDI FT232R(L) chips will be fakes so you'll be safer to go for another model if you want FTDI. The same goes for Prolific PL2303HX/HXA, go for PL2303TA instead (not sure if there are any known fakes of TA however).
they work great on linux and fine on windows once setup ( read before you try on windows! )... just be aware many schematics aren't perfect when it comes to 3.3v being 3.3v so if you have a particularly valuable or sensitive board... i'd advise a some leveling on the tx or vin > LM11173.3v > vcc.
Without problem as i described it to know that with several different adapters when the branch plugs the adapter and that puts the power supply then the starting of the box is blocked. For this to work I do not have to connect the USB adapter before starting the box except with a very old PL2303 adapter which does not pose this problem.
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