is there any way to spy the data communicating between the GPIB and the PC.

[Gops]

HI

I have a device communicating with my PC using IEEE 488 GPIB card. Do we have any way to spy the data exchanged by the device and the PC running a different application.

I am trying to program an application that needs to gather data from a HP 54602A - 150 MHz - 4 Channel oscilloscope using a IEEE 488 add-on card. I am able to talk to the device and request the device number through MAX. I need to know the other commands to the oscilloscope. Can any one help me in this regard.

With Regards
S.Gopal

[GPIB_Guru]

Launch NI Spy (Start >> Programs >> National Instruments >> NI Spy). You may want to configure it to capture 64k of data instead of 64 bytes since the strings sent to the device may be larger than 64 bytes.

Start capturing with NI Spy and then run the application. All of the calls made to the device will be captured in NI Spy. You can then look at the data buffers to determine what strings are being sent to your device.