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DAQmx Export Signal property node

Hi,
I tried to export the counter output 0 of my PXI6071E to PXI_Trig4. The counter is gated by an external signal. This works fine. (DAQmx property node: Export signals with CtrOutEvent=PXI_Trig4). If I do this, I can't see my counter output signal on an oscilloscope any more. If I do not export the counter signal I can watch it on the oscilloscope.

Has anyone an idee of this strange behaviour?

Thanks,
Andreas
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Message 1 of 5
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By default, a counter output task always routes the CtrNInternalOutput signal to the CtrNOut pin. By exporting the CtrOutEvent to PXI_Trig4, you are overriding the default route and the route to the CtrNOut pin will not be made. If you want to see the signal at both places, you have a couple of options. Run the task once and export the signal to the CtrNOut pin. Then switch the destination to PXI_Trig4 and run the task again. Although the destination for the signal has changed, the original route will remain in place and you should be able to see the signal at both locations. You will continue to see the signal at the CtrNOut pin until you tristate the terminal or reset the device which will tristate all terminals. Alternatively, you can use the VI you h
ave and call the Connect Terminals VI to explicitly create a route between CtrNInternalOutput and CtrNOut. Hope this helps.
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Message 2 of 5
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Hi,
suggestion one works fine (see attachment 1, pic1). But I've some problems with suggestion two. With DAQmx Connect Terminal.vi I can not find the counter output (see attachment 1, pic 2).
So I decided to work with suggestion one!

Thanks.
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Message 3 of 5
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Both of these terminals are considered "Advanced" terminals. In order to see those in the list right click on the I/O constant and select "I/O Name Filtering...". In the configuration dialog there is a check box for "Include Advanced Terminals". Click on this and you should now be able to see the counter terminals you are interested in.

Stuart G
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Message 4 of 5
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Very good hint!

Thanks,
Andreas
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Message 5 of 5
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