How do I continuously wait for a trigger?

[weatherhound]

using labview and GPIB to control tektronix 3034B oscope. want to continuously wait for trigger. how do i get rid of timeout? I am using IVI instrument driver for 3034B

[DiegoF]

Hi,

You can use the low level adquisition VIs. First call Initiate Acquisition. Then use the Acquisition Status VI to determine if the acquistion is complete. This wait you can wait indefinitely.

Of course, you could also set the timeout value of the ReadWaveform VI to something like 86000000 ms, which is aprox. a day of timeout :).

DiegoF
National Instruments.

[weatherhound]

DiegoF,
thankyou for your help. it worked. (used a while box in conjunction with the acquisition status vi so continuously waiting for acq status to change to 1.)

thanks again
Jim

[jjhuang]

I have the same problem. The VIs you mentioned sound familiar but I cannot find them on the palettes. I am using LabVIEW 6.1 so maybe these function are under different names?

Please advise ASAP.

Thank you.