digital inputs indicate in an analog Waveform-Chart

[Andreas82]

Hello!

I want to indicate digital inputs in an analog Waveform-Chart.

Hardware:  DAQCard-6024E
Software:  LabVIEW 8.2
My Block Diagram: see Attachment

The 16 analog inputs are indicated in the “Waveform Chart" (see Attachment). Now I would like also to indicate the digital inputs in this Waveform.
To test the digital inputs I produced “Test digital Waveform” and “Test Waveform”.

Unfortunately I do not have an indication in “Test digital Waveform”.

Perhaps can someone find my mistake?

Thanks!
Andreas

[Christian Mergl]

Hey,

I'm wondering that you don't receive error -200077 or error -200452?

error -200077: Requested value is not a supported value for this property

error -200452: Specified property is not supported by the device or is not applicable to the task

It's not possible to perform an AI property for an DI Task and also its not possible to clock a DIO Task on an E-Series card.

BR, Christian

[Andreas82]

Thank you.
 
I will test the program tomorrow without the AI property and without the clock.

But One Question:
Can I get NSamples without using clock?
I think I need the same Number of Measuring points to indicate the digital inputs in the analog Waveform Chart?

[Christian Mergl]

Hey,

The DIOs with your hardware (6024E) are static DIOs which means they can be used for switching/detecting alarms or something working with TTL. What you will need is an M-Series card where the firs port of the DIOs is clockable, called correlated DIO. With an M-Series (62XX) you will be able to use an AI, AO or Counter as clock for the DIOs and perform a continous or finit measurement of one or more DIO lines.

Christian