The GPIB interface has been working well for quite some time, but starting the other day, the computer does not see any of the instruments plugged into the GPIB bus. Nothing was changed, so far as I am aware. I have shut down all of the instruments and the computer, unplugged all of the GPIB cables, plugged them back in, and turned everything back on. This proceedure has typically worked to correct this problem in the past, but nothing I know of seems to help. I use the VISA commands regularly.
