4472 external trigger source name

[tooooommi]

Dear All,

I have a PCI-4472B which I want to program in order to acquire a signal from channel 0 whenever it recives a TTL signal throw the External Trigger input.

I'm using a modified example but I don't know which is the name of the external trigger source. I always recive this kind of error (for example if I connect a string containing "EXT_TRIG"):

code: "-200265"

"DAQmx Start Task.vi:1<append>
<B>Property: </B>Start.AnlgEdge.Src
<B>Corresponding Value: </B>EXT_TRIG

<B>Task Name: </B>_unnamedTask<DB>"

The program I'm using is of this form:

First of all, does this error mean that I didn't input the right external trigger source name?

If so, which is the right name of the external trigger source for NI4472B?

Thank you for help

[CorraDIT]

Hi tooooommi,

would you mind expanding the error message? I cannot see the entire message and there should be more information about the error that we can use to solve it.

Also, have you tried connecting another Physical Channel control (like the one that you connect to the AI Voltage function) to the Start Analog Edge function? That may allow you to browse to find the right source for your analog trigger.

Let me know, so I can try to help you further. Best,

Corrado Degl'Incerti Tocci

Application Engineer

[tooooommi]

Thanks for the message. The solution was to select "analog trigger start" as trigger option for the External trigger input.

Cheers,

Tommaso