Variable scale for daq signal

I hope this is not painfully simple to most of the people on this forum but I have an application where I set up a test bench to do testing on a component that have varying reponse piece-to-piece. For example, one component might have a voltage of 0.6 to 3.75 for the desired range while another can be 0.5 to 3.9.
Being a noobie, I heavily rely on DAQ Assist and this is not an option (user-input slope, etc.) Do you know the best way to go about this? I looked at creating a virtual channel through daqmx but it seems that it will only take a predefined scale you set up as opposed to allowing the user to define that scale.
Please help!
Thanks
KM

You seem to be mixing up some terms. It seems you are talking about range of the signal that you are measuring and not the scaling.
If it really is the range, then based on your example, you probably don't need to change anything. When you provide the range values, what you are telling the DAQmx driver is what actual range of the daq device to use to best measure the signal. For example, if the device has actual ranges of +/- .1V, +/- 1V, +/- 5V, and +/- 10V, then it will use the +/- 5V range as the best fit for the signal you anticipate. So, in your example, the actual range used by the DAQ device is going to be the same. You can check the manual for the DAQ device to see what ranges are supported. If you actually do need to switch ranges, then the best thing to do is use the lower level DAQmx functions. The DAQmc Create Channel has inputs for min and max.

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Hello,
In my application, I use the DAQmx-driver to read the 16 analog input terminals of my DAQ-Card. I create a task with all the 16 channels and define for each channels the input domain (from 0 to 10V) and configure them as NRSE. Then I configure my task to measure the waveforms during 10s with 1000 Hz each time I need it.
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Hi,
May be I don't get exactly what you mean with:
"Right click On DAQmx read and check the options with DAQmx AI read (it is a polymorphic VI) ."
I set the DAQmx read polymorphic VI to the option "Analog 1D Wfm NChan NSamp".
Anyway, I send you 3 VI:
- NIDAQ_6014_CreateScales.vi: where I create my scales
- NIDAQ_6014_StartAIN_Scaled.vi: where I create my task and use the scales
- Measure.WaveFormReader.vi: where I read my data
May can you see what is wrong.
Cheers.
Attachments:
Measure.WaveFormReader.vi ‏39 KB
NIDAQ_6014_CreateScales.vi ‏22 KB
NIDAQ_6014_StartAIN_Scaled.vi ‏29 KB

I am using the Order Analysis Toolkit and want to get more information about the compensation for "Reference Signal Processing", which is scarce in the manuals, the website and the examples installed with the toolkit.

I am using the Order Analysis Toolkit and want to get more information about the compensation for "Reference Signal Processing", which is scarce in the manuals, the website and the examples installed with the toolkit.
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DESCRIPTIONS:
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Hi CracKatoA.
Take a look at the link bellow:
http://forums.ni.com/ni/board/message?board.id=170&message.id=255126&requireLogin=False
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What is the best achitechture for DAQ?

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Most of the previous replies are focus on the low level, so here is a top level reply.
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I prefer to send commnads to explicitly tell loops to shut down (rather use an error to signal this) and I let the reciever of queue data to kiil the queue.
I hope this gives you another way of looking at your code.
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Ben Rayner
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Neal Pederson, President, VI Control Systems
1923 Mendius Lane, Los Alamos, NM 87544
TEL: (505) 662-1461, FAX: (603) 388-4969
[email protected], www.vicsys.com
Chip Henkel wrote in message
news:[email protected]..
> Hello,
> I have been using LabView 5.0 for a few years to program, control
> & retrieve information from the GPIB bus. I want to get int
o DAQ
> programming. Where I work, we do not have much in the way of DAQ
> hardware, so I am going to attempt to purchase what I need to play at
> home in my spare time.
>
> Looking for:
> ** DAQ card, preferably PCI for Windows 98: (PCI-MIO-16E-4 or 10)
>
> ** Signal conditioning hardware that will work with the PCI-MIO series
>
> card I am looking for.
>
> Please reply to: [email protected]
>

Why not add a scale for accessing both scaleX and scaleY (class extensions in as3?)

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I'm getting the same amount as period 1 for YTD as well....I created a two variables for YTD , one is with single value optional with default value as 1 not ready for input and another variable as customer exit with single value. In the exit I'm reading the user entry value as my 2nd variable value. Then I'm using these two variables as range in RKF with key figure and value type.... i.e,
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I used the range and when I use RSRT to test the query , I'm getting the exact variable values in the result example if I give the input as year = 2010 and Posting period = 3 - 6
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Variable scale for daq signal

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