f



routing analog input to analog output with digital input control

First of all, I apologize if there's a simple solution to this, but this pr=
oblem is for someone else's project and I don't really have time to give th=
e forum more than just a quick glance over. Here's what I want to do:<br><b=
r>I have 2 analog signals I'd like to route through my PCI-6221 directly to=
 the analog outputs. Should the phase difference between input and output b=
e small enough, then a digital trigger will control whether the inputs are =
routed or not.  Circuit-wise, this would be very easy but we don't have tha=
t capability for a few weeks and if there's a simple way to route analog in=
puts to the analog outputs, then we'll of course try to use the computer.<b=
r><br>It seems like there's some powerful VIs to route PFI/RTSI/Analog Star=
t&Trigger lines just about anywhere, but I think all the source and destina=
tion lines are all digital and counter lines Please correct me if I'm wrong=
 I've made measurements using a continuous analog aqcuisition and routed t=
he AITrigger to RTSI0 which I used on another task to make a single period =
measurement so I could change the trigger level, but I couldn't figure out =
how to use any of those VIs to map something ai0 somehow to ao0.  Maybe I d=
on't really know how PFI/RTSI lines work.)<br><br>There was a thread that s=
omeone posted a solution to routing analog outputs to inputs to verify corr=
ect board funtioning by inputting "_AO0_vs_AOGND" or something like that as=
 the input channel (Rather than ai0 or ai1). Unfortunately, the PCI-6221 is=
n't an E series device and no longer has that as an internal channel name s=
o that doesn't work. And I'd of course need a solution for the opposite sce=
nario: inputs routing to outputs. <br><br>(btw, here's the thread: http://f=
orums.ni.com/ni/board/message?board.id=3D250&message.id=3D5971&requireLogin=
=3DFalse)<br><br>Any ideas out there?
0
x9561 (148438)
5/6/2005 5:40:58 PM
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Digital versus analog input
Many LCD monitors have both analog D-SUB and digital DVI input ports. Is the image quality any better with digital input? Hamad bin Turki Salami wrote: >Many LCD monitors have both analog D-SUB and >digital DVI input ports. Is the image quality >any better with digital input? You really think your the first person to ask this question? Try google. "Hamad bin Turki Salami" <HamTurkiSalami@Spam.aol.hotnet.ibm.net> wrote in message news:pan.2005.11.16.07.34.01.110307@Spam.aol.hotnet.ibm.net... > Many LCD monitors have both analog D-SUB and > digital DVI input ports. Is the image quality > any better with digital input? It depends entirely on the quality of the design and implementation of the two types of input. Neither has an inherent quality advantage over the other. Bob M. "chrisv" <chrisv@nospam.invalid> wrote in message news:4oimn15cg24bcbr2qtsjse8s2jakqu1d5m@4ax.com... > Hamad bin Turki Salami wrote: > >>Many LCD monitors have both analog D-SUB and >>digital DVI input ports. Is the image quality >>any better with digital input? > > You really think your the first person to ask this question? Try > google. > If you don't want to answer, don't answer. -- Ed Light Smiley :-/ MS Smiley :-\ Send spam to the FTC at spam@uce.gov Thanks, robots. Bring the Troops Home: http://bringthemhomenow.org Fight Spam: http://bluesecurity.com ...

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CPU usage on buffered analog input and output
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digital inputs indicate in an analog Waveform-Chart
Hello! I want to indicate digital inputs in an analog Waveform-Chart.Hardware:&nbsp; DAQCard-6024ESoftware:&nbsp; 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<img src="file:///C:/DOKUME%7E1/0422215/LOKALE%7E1/Temp/moz-screenshot.jpg" alt=""> digital Inputs.JPG: http://forums.ni.com/attachments/ni/170/269308/1/digital Inputs.JPG 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. &nbsp; BR, Christian Thank you.&nbsp;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? Hey, The DIOs with your hardware (6024E) are static DIOs which means they can be used for switchin...

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