Synchronize two PCI Board for Analoge Output

Hi All
Has anyone a good example for synchronizing two MIO Boards over RTSI cable.
I found a lot examples to analoge input but nothing about analoge output.
Thanks

Hi Reto.
I posted to this once, but looks like it didn't make it. I checked the examples, and Ir eally didn't see anything that did what you wanted over the RTSI bus, so I made one. Check it out.
Mark
Attachments:
RTSI_AO.vi ‏95 KB

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PCI Card for Analog output in the range of 10mv

dear ni,
                I want to know about the PCI card that can be generate analog output in the range of maximum 10mv. i am going to use for caliberation of loadcell, strain gauges devices.
could you tell me on which PCI card will support this type of application.
Regards,
Balaji DP

Try: http://www.ni.com/dataacquisition/
These have analog output voltages < 10V:   http://sine.ni.com/nifn/cds/view/main/p/sn/n12:7604,n3:7853/lang/en/nid/1036/ap/daq
You need something with a high bit count to get good resolution at 10 mV, such as the PCI-6010 which has a 16 bit D/A.
Here are the minimum voltage specs for the 6010:
Minimum Voltage Range
-0.2..0.2 V
      Range Accuracy
283 µV
      Range Sensitivity
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Message Edited by vt92 on 11-18-2009 07:56 AM
"There is a God shaped vacuum in the heart of every man which cannot be filled by any created thing, but only by God, the Creator, made known through Jesus." - Blaise Pascal

Can I synchronize two pci boards - DIO-6527 and MIO6036E - via RTSI?

Thanks in advance. I'm interested in synchronizing a Analog PCI (MIO 6036E)and a Digital I/O board (DIO6527). But I am not sure if this is possible via RTSI. Can anybody give me some advice? Are there any Digital I/O boards which own a RTSI-interface?

Well, you can't do buffered pattern input with the 6527. You can only sample the digital lines one scan at a time through software. The speed of this is limited by the speed of the software.
Now, the MIO board already has a built in hardware trigger you can use to initiate an analog acquisition. You can also use your MIO card to "gate" the scan clock using one of the counters. (Only acquire scans while the gate signal is high, for example)
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y want to switch to a 653x. Then you would be able to share the same clock between the two.
If I have misunderstood your application, then could you give me some more detail about what you would like to happen?
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Use soundcard for analog output

Is it possible to use soundcard for analog output with LabView6?

nicke wrote:
> Is it possible to use soundcard for analog output with LabView6?
Have a look in the examples under Hardware Input and Output|Sound (LV6.1)
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Impressed the crap out of some Fortran hackers by showing them how
easy I could turn my laptop into a spectrum analyser.
Remove "spamkill." when replying to this message

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Until finished
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Hi CDancer,
Many thanks for contacting National Instruments. If I can start by giving some general advice, it would be well worth posting your actual VI. This helps others on this forum in helping you with your application.
From the sounds of things, you want to do continuous analog output generation. I have had a look at the examples that come with LabVIEW and I think you should look at the one below.
I would have a look at some of the DAQmx examples that come installed with LabVIEW. The following example would be particularly relevant I feel
Cont Gen Voltage Wfm-Int Clk-non Regeneration.vi
Please let me know how you get on.
Many thanks,
Andrew McLennan
Applications Engineer
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Hello Kenstern,
The data is always interleaved because each card only has a single timing engine for each subsystem.
For AO you must specify the number of samples that AO will output. You also specify the number of channels. Because there is only one timing engine for AO, each AO will channel will get updated at the same time tick of the update clock. The data will be arranged interleaved exactly as the example shows because each AO channel needs data to output at each tick of the update clock. The data itself can change based on the frequency you want to output.
kenstern wrote:
For example, say we want a0 with a 1Khz Sine wave and a1 with a 1.5Khz sine wave. What does the DMA buffer look like ?
With the same frequency for each channel, the data is interleaved, e.g. (ao0#0, ao1#0; ao0#1, ao1#1, ...), but when the frequencies for each channel is different, what does the buffer look like ?
In your example, you need to come up with an update rate that works for both waveforms (1 KHz and 1.5 KHz sine waves). To get a good representation of a sine wave, you need to update more than 10x as fast as your fastest frequency...I would recommend 100x if possible.
Update Frequency: 150 KHz
Channels: 2
Then you create buffers that include full cycles of each waveform you want to output based on the update frequency. These buffers must also be the same size.
Buffer 1: Contains data for the 1 KHz sine wave, 300 points, 2 sine wave cycles
Buffer 2: Contains data for the 1.5 KHz sine wave, 300 points, 3 sine wave cycles
You then interleave them as before. When the data is run through the ADC, they are outputting different sine waves even though the AO channels are updating at the same rate.

Can PE3 synchronize two video sources for post edit AB roll?

In PE3, is there a way to synchronize two digital video files (AVI) to create a AB roll type post edit. My two captured video files seem to have different frame speeds or frame durations. How do I align and frame match 2 video sources? The situation is a 2 camera shoot. How to best create an AB roll edit of the 2 videos sources with audio from one video file as the common element?

Wes,
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Hi all,
Iam working on pci-6723 NIDAQMX 7.3 LABVIEW 7.1 ENVIRONMENT.I have designed 16 channel data acquisition system.in order to supress glitches in the analog output signal ,which filter i have to adopt to the analog output generation. since i dont want to design hardware low pass filter , if i adopted digital filter will it improve the output signal performance ,kindly suggest me.with some example.
Regards
labview boy

Hello,
If you are talking about a software digital filter with the program that is producing the analog output, that will have no affect on an analog output signal. The glitching comes from the digital to analog converter (DAC). Check out this knowledge base article:
http://digital.ni.com/public.nsf/allkb/3BB2D5D837F6C9FE86256EAC007C123B
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-Alan A.

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Many Thanks
Michael.

This topic is discussed here:
http://forums.ni.com/ni/board/message?board.id=250&message.id=13383&requireLogin=False
Hope this helps!

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Hi guys,
currently I tried to control a linearmotor using PCI-6052E and PCI-6602.
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Thanks for your help before,
Warmly regards,
hendro

Synchronize two boards with RTSI

I want to synchronize two PCI-6713 boards to generate analog output signals with RTSI,but I don't know I should use "Route Signal.vi" or "RTSI Control.vi" and where I should put them in the diagram...
Plaese help me....thanks!

cooler wrote in message news:<[email protected]>...
> I want to synchronize two PCI-6713 boards to generate analog output
> signals with RTSI,but I don't know I should use "Route Signal.vi" or
> "RTSI Control.vi" and where I should put them in the diagram...
> Plaese help me....thanks!
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boards in a chassis. I will send you those examples if you can email
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Hi !
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Attachments:
dac_good.vi ‏77 KB
adc_good_fw.vi ‏124 KB

Shiva;
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Synchronize two PCI Board for Analoge Output

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