I am having trouble with a Keithley 7487 -. The device is not able to be recognized by any of the standard software, e.g. Keithley Communicator, Keithley Configuration Panel, NI VISA Interactive Control, etc.. The Keithley is connected to the computer via a KUSB-488b plug. Other devices in the lab with similar configurations are running just fine, but for whatever reason this one is giving us trouble. Also, this device was previously running fine but "stopped working abruptly" according to a coworker.
To test the device, I run the Keithley Configuration Wizard. In that program, I select "Add" device. Then, select GPIB for the communication bus, and 22 for the GPIB address (22 matches the address on the hardware itself). On the following screen, I have tried selecting both "Auto-detect Instrument Driver - Model" and "KE6485 - MODEL 6487" options. In either case, the wizard returns the following error:
Homebrew applications we've written to command the Keithley are also no longer working.Problem:
This wizard could not find a physical instrument at the hardware resource you specified:
GPIB Address 22 on GPIB0
My attempt at a solution was to uninstall and reinstall all of the Keithley instrument drivers, the Keithley I/O Layer software, and NI VISA. I have also made sure that the GPIB address on the device matches the address I select in the configuration wizard, the device is powered on, etc. I also tried other really basic things, like moving the USB connection to a different slot, replugging in the KUSB connector, etc.
EDIT: I forgot to mention I also tried updating to the most recent version of the firmware (A06), and while the installation says the update installed correctly on my PC, when I turn on the Keithley the firmware version still says A05.
I'm really at a loss for what to do here. Any advice will be much appreciated.