Please I need some help in troubleshooting the issue with my KUSB-488B USB to GPIB converter as I have tried everything, I know to get it to work again but I've been unsuccessful at that. The hard drive has been functioning well until yesterday when I tried running my usual experiments while outputting the required high voltage (Currently using the Keithley 2290-5kV DC power supply). I use NI LabVIEW to control the output voltage remotely. Upon clicking the 'output' button in the LabVIEW voltage generator code, I heard an unusual sound that sounded like sparks which also interfered with the screen/code in a way - It flickered while the spark sound was on. Upon noticing this, I quickly stopped outputting the voltage. After that, I tried reconnecting the code to the voltage generator, but it failed to connect to the Keithley voltage generator and gave a 'session connect failed, check connections' message. Upon seeing this message, I tried a couple of things listed below.
- Disconnecting and reconnecting the USB port using the initial port and a different port and then restarting the system, but the system kept prompting that the USB device had malfunctioned and that windows did not recognise it.
- I then disconnected and reconnected the GPIB from the rear of the voltage generator but that also did not work.
- I also tried uninstalling and re-installing the KUSB 488 driver (version 3.13.2) and then restarting the system to see if that would solve the problem, but it was futile.
- Since the computer could not recognize the 488B USB to GPIB converter, I also tried adding and installing it manually. It showed that the installation was successful, but the computer noted it as an unknown device.
- Upon checking the NI Visa Interactive control, I found that the usual 'GPIB Instrument Resource' was not present. I only saw GPIB Miscellaneous resource, which had GPIB0: INFC beneath it.
- The final step I did was to check the Keithley GPIB configuration utility and found that beneath GPIB0 were two devices named I(PA:255, SA:255) instead of the Keithley instrument.
Since all my troubleshooting efforts were futile, I'm unsure of the next step(s) and was hoping to get some help here. I however suspect that I might need to get a new KUSB-488B USB to GPIB converter. Would you please let me know if there are other things I need to try or if getting a new KUSB-488B USB to GPIB converter is my only option in this case.
Thank you.
