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daqmx simulated digital input

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I'm having trouble using the simulated digital input feature.

 

I create a simulated digital input in MAX - a simulated NI PCI-6534, single channel, port 0/line 0, acquisition mode is 1 Sample (On Demand)

 

When I click the "run" button I see the indicator flash on and off as I would expect.

 

However, when I bring this task in to LbView, I can't get the indicator to flash no matter what I've tried.

 

No doubt I've missed some basic concept. Can anyone tell me what I'm doing wrong?

 

(VI attached).

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Message 1 of 8
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Hello DennisW

 

We cannot reproduce the issue since you are referecing a task configured in MAX and you just sent a VI.

 

However, if your task is working in MAX, you could use a DAQ assistant in LabVIEW using the same configuration as in MAX.

 

Using the DAQ Assistant to Automatically Generate LabVIEW Code

 

Regards

Frank R.

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But I did give the steps I took to create the simulated digitial input - NI PCI-6534, single channel, port 0/line 0, acquisition mode is 1 Sample (On Demand)
It should take just a few clicks in MAX to create it.
I don't understand why it would work differently than using the DAQmx assistant, since the set-up is the same.

Using LabView 2014 32-bit, DAQmx 14.0 on Windows 7 64-bit.

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You do not have N channels, you have 1 channel.  Use the appropriate DAQmx Read version.


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OK, tried that, no difference

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Solution
Accepted by DennisW

Try starting the task explicitly before the loop (and clearing the task after the loop):

 

DIWithTask.png

 

 

Best Regards,

John Passiak
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This worked for me ...

Sim-6534.png

Bob Schor

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Message 7 of 8
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Makes sense! Works too.

Thanx!

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