Daq mx very slow triggered ramp acquisition help

[thomahawk]

I need a daq mx method to acquire three triggered 1000 second long ramps .

The ramps are from.a function generator and the trigger is also from a function generator.

The frequency of the ramps( sawtooth) is therefore 1 mHz.

I have an Ni usb daq device.

[TSE_Expert]

Hi thomahawk,

the attached VI with "Digital Start" setting shall do the job for you.

Best Regards,

NI TSE

[thomahawk]

Hi, 

Many thanks for the vi. However, I am getting this error at very slow ramp rates(1000 seconds ramp)

 error:

Some or all of the samples requested have not yet been acquired:

I connected this to a normal oscilloscope and it works fine.

Reg,

Thomas