controlling instruments through Labbview 7.1

[b52a]

Hi,

My application would be to use Labview 7.1 to do the following

a) control a wave form generator (Agilent 33220A),

b) log data from two multimeter (Agilent 34401A) and

c) log data from an oscilloscope (FLUKE PM3370B).

I want to use the USB ports available on my computer to connect to these instruments. The wave form generator has a direct USB to USB connector, where as for the rest of the instruments I plan to use RS232 to USB convertor to connect them to the USB ports on the computer. But I am not finding the USB ports enlisted on the MAX software wizard to configure them. So, I tried to connect one of the multimeters to RS232 on the computer, but found that the Labview software is not able to communicate with the multimeter, though the parallel port is installed and is shown in the MAX wizard.

I would benifit from the knowledge of those who have experienced similar problem, or anybody having some idea to solve this problem.

Thanks in advance.

B52A

[Dennis_Knutson]

Your USB->RS-232 converter should be listed as a com port assuming you've installed the driver that came with it. When you tried to communicate with the instrument in LabVIEW, how did you try to do it? Did you use a driver? The Agilent instruments have drivers that you can download from The Instrument Driver Network. How exactly did you try the communication and what is the problem you had? For the USB waveform generator. check to see if it's a USB TMC (Test and Measurement Class) instrument. If it is, check this Knowledge Base article.