Need Windows USB Driver for TENMA 72-13210 (electronic dc-load 30A/120V 300W)

Question

Dear all,

does anyone has an idea where to find the "windows usb-driver" for this device?

TENMA 72-13210 (electronic dc-load 30A/120V 300W)

It's not present on the attached original CD and I also couldn't find it anywhere in the internet.

Thanks for your support!!!

UPDATE 17th of Sep. 2018

Thanks for your replies so far!!!

The device is listed twice at "other devices" when I plug in the usb-port:

- SZ KORAD USB Mode

With a CD no driver but a list of commands to control the device is provided.

There is also a Windows executable for a connection test. Its frontend shows three tabs, one for each communication port

- Ethernet

- RS232

- USB

The USB obviously didn't work, because the devices had no drivers installed.

Using an rs232 to usb adapter I was able to control the device via the RS232 port. The device was then listed as "USB Serial Port (COM11)" with an FTDI driver being used.

This might be a workaround but I need to decide whether or not to oder more of these devices. So an inusable usb-port will influence my decission.

I tried out some random usb drivers ending up with an immediate system shutdown.

What else could I try?

dmxdesign · Accepted Answer

Hi all i have finally got this all to work after some digging by Devinder from farnell tech suppoprt the zip file a pdf on how to resolve the usb in device manager and a folder with the serial port driver file all the best Chris 
 Attachments: tenma info.zip

ayush_1921 · Answer

found in fernel deep with gui and terminal interface,as it farnell rebrand 3175898.zip

Problemchild · Answer

If it's come from Farnell you could always ask their support https://uk.farnell.com/tenma/72-13210/dc-electronic-load-prog-30a-120v/dp/2848407?mckv=rPv7lNfK_dc|pcrid|75247888851825|…

rsjsouza · Answer

This is quite similar to the Korad KEL-103, but even this model does not have drivers on its website and its manual makes no mention of the USB. When you connect it to the host, what kind of device is enumerated? Is it a standard USB-RS232 port from FTDI, Prolific or other? If nothing shows up, then it is possible the USB is either non-functional or fictitious.

Gough Lui · Answer

It would be good to know what the PID/VID combination of the USB device is. Under Windows, you can find this in the Device Manager in the properties for the Unknown Device under Details (Tab) / Hardware ID (Property). If you have Linux, it may even be better to run lsusb -vv and provide us the results. It could be a USB to Serial adapter as many lower-end units may have - depending on which chipset, you might need drivers from FTDI, Prolific, SiLabs, WinChipHead amongst others. If it is a "higher end" unit, it could actually be a USB Test and Measurement class device, which will need a VISA layer installed as the IVI driver comes bundled with the VISA layer. You could try National Instruments VISA (NI-VISA), although other VISA implementations are available (e.g. Keysight I/O Libraries, R&S VISA, Tek VISA, etc). Otherwise, it may be possible to use something like pyhon-usbtmc under Linux. Unfortunately, without further information such as a programming manual that lists the commands, their format and their values ... it's not going to be easy to get this to work. Ironically, you may end up learning more about the device if it has LXI-compatible LAN, which you can probably learn some details about the commands from. I wonder if there's even anything useful on the supplied CD - but not owning such a unit, I have no idea. Maybe if you could list the files on the CD, that could help as well. - Gough

Gough Lui · Answer

From some quick digging, it seems that the PID/VID belong to Winbond/Nuvoton and likely is a virtual COM port : 0x0416 0x5011 Winbond Electronics Corp. Virtual Com Port It doesn't seem drivers for this are available online - the only reference I found was this Chinese site which needs a login , but if it is USB CDC-class compliant, it should install automatically (similarly to Arduino Leonardo boards). Otherwise, it could be some very small .inf files on the CD-ROM that will be the appropriate drivers - if you can, could you list all the files/explore the CD-ROM? You can do that using the Command Prompt under Windows with the following command (assuming D: is your CD-ROM drive, creating a file called listing.txt in the current directory): tree /f D: > listing.txt and upload the list here? - Gough

Gough Lui · Answer

It looks like mostly an old version of NI-VISA but hey - at least the 72-13210 Communication Commands with Computer.pdf and USB Driver installation.pdf look interesting. What do they tell you about installing the driver? I also suspect Test Command\72-13210.exe could be an installer bundle that contains a basic remote control application and driver bundled together (fingers crossed) so could be worth examining. Otherwise, do install NI-VISA (probably best from National Instruments directly for the latest/most stable version) and see if the IVI driver picks up your electronic load. If it does, then it will become a USB Test and Measurement Device (IVI) - from my machine: While the CD does seem somewhat confusing, don't write it off just yet . Best of luck. - Gough

sjbaxter · Answer

The setup.exe just installs a NI Labview application to drive the Load remotely. But it only supports RS232 and USB (not LAN) and does not install any USB drivers, so the USB doesn't work on that application either. It does install a 2014 Labview core and VISA libraries, but the application doesn't actually use those!

I have had an email from KORAD support saying that they have just supplied Farnell Tech Support with a solution. I don't know if thats the one that Farnell sent to me last week or something newer based on the detailed information I have supplied. If it's the one I got last week, that doesn't work either, so we'll wait and see if Farnell come up with something newer that finally addresses this.

Need Windows USB Driver for TENMA 72-13210 (electronic dc-load 30A/120V 300W)

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