Using NI Spy
NI Spy monitors, records, and displays the NI-488.2 calls made from applications. You can use it to troubleshoot errors in your application and to verify the communication with your GPIB instrument. NI Spy shows which NI-488.2 calls are being used to communicate with your instrument. If your application is not working properly, you can use NI Spy to search for failed NI-488.2 calls. For more information, refer to its help.
To start NI Spy, select Start»Programs»National Instruments»NI Spy. Or click on the following button.