PLEASE NOTE: We cannot use the .PBN or .RTX files produced by the LISST-SOP for
troubleshooting. We can only help you if you supply .RBN files.
A: In addition to checking the cable, power and serial port settings, make sure that the
instrument is not logging data or sleeping. Open up the terminal window and confirm that no
program is running. If a program is running, stop it by clikcing the button, close the
terminal window and try to query the instrument again.