how to: Tek 2440 scope GPIB to PC to file + Analysis FFT etc

[MrRob]

I am able to communicate to a Tektronix 2400 500Mhz GPIB based scope . The Issue I have now is that in LabView 8.2 I get errors that MAX or the I/O Assistant is wrong or not installed. I have been able to create a panel interface to the scope and watch it change settings. I have even gone as far as creating a VISA profile for this instrument, but the block diagram to wire the scope to the I/O Assistant fails. I still have a copy of LabWindows CVI which has just expired as a demo program. However I do see that the VI's are available for Insterument I/O, and for FFT analysis etc. What am I doing wrong in communicating with the tek24xx driver I made or with the MAX or I/O tools?

I would not even mind using another scope's VI setup and removing the instrument and replacing it with the tek2440 driver if possible.

Thank You

[Dennis_Knutson]

There is a LabVIEW driver for it at http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=E3B19B3E9620659CE034080020E748.... There is also a CVI driver for it as well so I'm not sure why you made your own driver. If you want to use the Instrument I/O Assistant, verify that you have installed NI-VISA. You can check this in MAX by expanding the software listing.

[MrRob]

Yes, the NI-VISA is already installed. I have to install the Compliance package and am doing so at the moment in order to get the I/O Assistant to work in LabView 8.2.  I created a communication and format shell 'so-to-speak' for the Tek2440 oscilloscope because the GPIB command syntax is older with respect to *IDN? as an example not being understood by the scope and having to revert  back to ID? as a valid command. This is the initial header of sorts to communicate with the Tek2440 and to make sure such things as the ID? text sent back was formatted correctly in the instrument driver and that a valid return string matched what was expected.

Thank you for your help.

MrRob

[Dennis_Knutson]

The IVI compliance package has nothing to do with the Instrument I/O Assistant.