Multifunction DAQ

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digital trigger

Hello,

I want to trigger my Usb 6009 device via PFI0. i used the example-vi, i have attached below.
I am using a signal generator to produce the triggersignal (Signal: square, high 2.5V, low 0.5V, frequency 2Hz).
I always get this error.


Error -200284 occurred at DAQmx Read (Analog 1D Wfm NChan NSamp).vi:1

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

To wait for the samples to become available use a longer read timeout or read later in your program. To make the samples available sooner, increase the sample rate. If your task uses a start trigger,  make sure that your start trigger is configured correctly. It is also possible that you configured the task for external timing, and no clock was supplied. If this is the case, supply an external clock.

Property: RelativeTo
Corresponding Value: Current Read Position

Property: Offset
Corresponding Value:


Greetings,

klaus

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Hi Klaus,

Your trigger signal is too small...it's not a TTL level...

Try with a 0-5V signal and it would work well...

Regards...

Matthieu

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