6035E Analog Output problem

I have a 6035E with two analog outputs ("0" and "1"). Output 0
seems to work just fine, as do the analog inputs I've tried. The
problem is that output 1 does not. It only seems to give
-13V. Any thoughts? Thanks1

Please see this thread.
-Alan A.

Similar Messages

Hi, iam facing proble in synchronizing 4 ni 4472 cards input with pxi -6052e analog output. please help me out to sort out this problem

hi, iam facing problem in synchronizing 4 ni 4472 cards input with pxi -6052e analog output. please help me out to sort out this problem

Hi achyuth,
Thank you for posting on the National Instruments forum.
I am not sure what you are trying to do. Are you trying to input and output at the
same time? Are you just trying to
synchronize all of your inputs? Do you
want them to run off the same clock? If
you could, give me some more information so I can understand your problem
better.
In the meantime, this might help you:
PXI Timing,
Triggering, and Synchronization Capabilities of E-Series Multifunction Data
Acquisition ...
PXI Timing and Synchronization
Thank You,
Nick F.
Applications Engineer

Audio sync problem - simultaneous HDMI and analog output

I'm currently running my audio out through my Geforce 460 via HDMI to my A/V receiver. I have a simultaneous stereo analog output running through my ASUS Xonar D2, using Pulseaudio & Amarok as the player (VLC-gstreamer backend).
I use the HDMI and A/V receiver to power my main stereo in my living room, but on occasion when I want music around the house, I use the analog line out to send audio to an FM transmitter.
The problem is, I'm running into audio sync problems. The audio starts out synchronised (at least to the naked ear) but within 20-30 seconds it is noticeably out of sync, with the analog audio (form my FM radio) running around a half second ahead of the HDMI output (my main speakers).
So - where to begin finding where the sync problem is? The receiver? Conversions between 44Khz and 48Khz?
Any help much appreciated - google-foo hasn't turned up anything obvious so far.

Yeah - that was my thought - a very difficult, and probably insoluble problem as it stands. I can't just mute one of the devices as that would defeat the purpose of having multi-room music! Fortunately it's not too noticeable usually, as you can't usually hear the main stereo and the FM radios at the same time, unless you're standing in the right part of the house
The analog splitter cable not really a goer, since running clean, crisp multi-channel HDMI with pass through when needed is the essential goal of the HTPC. So unless I was to switch inputs and or unplug cables...
What I will end out doing, in the absence of a software solution, is hooking the FM transmitter directly to my receiver. I was going to just use the headphone-out jack of the receiver to feed audio to the FM transmitter, but the stoopid receiver can't output audio to external speakers at the same time as the headphone is plugged. To overcome this, I'll probably run a headphone amp off the receiver's RCA outputs, into the FM transmitter. Like this one: http://headamp.com/portable_amps/ae2/, or this one: http://www.amazon.com/Rolls-HA43-Headph … B00102ZOQC
Last edited by sultanoswing (2013-11-13 06:15:11)

2 analog output channels with different frequencies

Hi,
hope that somebody can help me:
I created two physical tasks, analog output channels.
I should give signals (triangle signals) to a scanner. The problem ist that I need these triangle signals with two different frequencies.
I can create the signal with each of the task, but not together. Can I solve this problem somehow?
Ah, and of course the 2 tasks should start together...
Thanks for your help!!
Telly

You didn't mention the type of device you're using, so I'll assume it's a standard MIO. A typical MIO only has one AO timing engine, so you'll have to create one task for both channels and use a single update rate for the task. You will have to make the output frequencies different by passing different data for both channels.
For example, let's say your update rate is 1KHz. The data for channel 0 is 1000 data points of a single cycle of a triangle wave. The data for channel 1 is 1000 data point of two cycles of a triangle wave. When you run the task, you will get a 1Hz triangle wave on channel 0 and a 2Hz triangle wave on channel 1.
Good luck,
Joe

Simultaneous analog output 1k sine wave and data acquisition

Although many topics of simultaneous analog output and input can be found in NI Developer Zone, I have not found a case similar to my project. I'm trying to generate a 1kHz sine wave by using the analog output of NI DAQPad-6070E, and acquire one channel input signal simultaneously. I found most of the examples can not work properly above 100Hz. Any suggestions are welcome. Thank you.
Jian

I have sucessfully solve the problem when I observed the increase of
scan backlog number. Simply increase the buffer size of AI/AO and you
can make the 1kHz sine wave output and data acquired properly.
On Tue, 3 Feb 2004 09:03:07 -0600 (CST), jujian wrote:
>Although many topics of simultaneous analog output and input can be
>found in NI Developer Zone, I have not found a case similar to my
>project. I'm trying to generate a 1kHz sine wave by using the analog
>output of NI DAQPad-6070E, and acquire one channel input signal
>simultaneously. I found most of the examples can not work properly
>above 100Hz. Any suggestions are welcome. Thank you.
>
>Jian

Digital Output problem once again (WIN XP, Audigy

I searched the forums with no luck, actually I searched the whole internet with no luck - so far.
My problems in a nutcase:
- I can't find the button for Digital Output (the one which enables it, Windows XP's sound mixer used to have that option with some ?windows build?, but I can't find it since I installed creative drivers, it's just gone...).
- If I find the digital output on-button with your help, is it even possible hear music with add-ons trough digital-optical cable or should I buy some mono-cable? :O
To be specific:
I have the Creative Audigy 4 Bulk, which of course supports SPDIF Digital output. I bought expesi've optical cable that I could finally use my hifi 5. speakers with movies trought computer. I have new 700 euro amplifier, and it supports everything, so the problem isn't with that one, anyways, let's get touch with the real problem.
What ever drivers I'm using, I can't find the digital output section anywhere. Creative drivers has one SPDIF-button, but it affects nowhere. So, I can't even get the Digital Sound on, because windows mixer has no button for that with my windows xp, weird. I also tried to install windows vista, and there wasn't either any options, where I could put the digital output on.
Which drivers and which add-ons should I install to get that Digital Output to work.
If I manage to find the button for digital output from some drivers, can I also listen music while it's connected via optical-digital cable, or am I just able to hear sound from dolby digital movies? Is it even possible to get everything work with my optical cable (music/games and movies at the same time).

. Your card doesn't have optical output, only "coaxial" digital. You will need a stereo (or camcorder) cable with one mini jack on one end and 2 (or 3) RCA connectors on the other. The white RCA will be the one you need.
The setting is on the "Creative AudioHQ" at the "Surround Mixer" selection. It is called "Digital Output Only". Or if you use the little icon on the taskbar, at the "Speakers" on "Speaker Selection" you have the same option (a check mark under the selection of speakers).
2. If you read the FAQ, you will get surround sound (5.) ONLY from DVD-Video that are encoded in DolbyDigital or DTS and ONLY if you pass-trough the digital signal to the receiver to do the decoding. In ALL other cases you will get STEREO PCM signal.
3. If your receiver is a decent one you should have an analog surround input (5. analog input). in that one you can plug the analog outputs from your card in order to have surround sound all the time (like in the games).
Message Edited by SoNic2367 on <SPAN class=date_text>09-25-2006 <SPAN class=time_text>06:24 AM
Message Edited by SoNic2367 on 09-25-2006 06:26 AM

Single shot analog output: How to pulse this. Probably easy, I'm at a loss.

Hello.
I have a piece of machinery that my system is connected to. Every time it reaches a proximity sensor (It's a reciprocating unit), I need to do a single pulse of 5v out of my analog output. It has to be fast, it has to stop until the sensor is reached again, and it can't stay 'on' for long.
I've attached my VI. I'm using a voltage input via DAQ assistant, routed through some logic to produce a 'true' boolean every time that sensor is reached, and that boolean is connected to a case structure with voltage out tasks created in DAQmx.
My problem is that the machine won't reverse while the case is still true and there's still the 5v being called by the true case on the case structure. It has to pulse, then stop, then be allowed to come back when the proximity sensor is reached again. As it is now, the machine reaches the prox and then the whole system stops, as the 'true' condition on the case structure, and subsequent voltage output, remain high.
I've attached the VI and heirarchy as well.
I've tried a few different things here, as well as just using a DAQ assistant with N samples, but that would just retrigger when the loop repeats anyway.
I'd love to sit and bang my head against this til I get it, but I'm under a time constraint. Help!
Still confused after 8 years.
Solved!
Go to Solution.
Attachments:
using create channel.vi ‏94 KB
logicsub.vi ‏32 KB

Ralph, without knowing the exact DAQ card that you are using, it is difficult to give you the best solution. If you want to continue with the solution that you currently have, try adding a shift register to the outer while loop to track the previous value of the boolean. In this way, we can keep multiple values that are above the threshold from causing multiple pulses. Next add a time delay after the DAQmx Write, then add another DAQmx Write to set the output back to your low value. Remove all code from your "false" case. See attached VIs. Please let us know what model of DAQ card you have as we may be able to do something clever like a retriggerable pulse train if your card can support it.
Charles Chickering
Charles Chickering
Architecture is art with rules.
...and the rules are more like guidelines
Attachments:
using create channel.vi ‏98 KB
logicsub.vi ‏29 KB

Which audio interface(s) for 16 to 20 analog outputs?

Hi. I wonder if anyone can help me...
I'm running Logic 7.2 on a black MacBook. For my inputs I am using the MOTU 8pre, as this is convenient especially when recording drums with my band... no scrambling together of pre-amps... no faff...
The thing is... I've been given a shed load of gear (literally), including a 24 channel analog mixing desk and tons of outboard rackmounted effects units/compressors/gates...
I would REALLY love to integrate the two systems, especially at the mixing stage, by routing my Logic tracks to the desk. Unfortunately, the MOTU 8pre only has a couple of analog outputs (+ headphone out).
To make this a venture worth undergoing, I'm going to need a minimum of 16 analog outputs. 20 would be great if possible.
I suppose my initial questions are:
1. Can I daisy-chain 2 firewire audio interfaces (each with 8 analog outputs) to give me a total of 16 analog outputs?
2. Bearing in mind I have a low budget, could anyone advise me on which units to get. I don't think I could afford any more MOTU gear, unless I find an amazingly low priced second hand item. What about Edirol or M-Audio?
Thanks in advance.
MS

This is worth checking: http://www.ioneconnects.com/product.shtml
Based on new DICE II firewire chip with JetPLL technology (should have much lower jitter than regular firewire Audio devices that are not built on DICE II).
I believe that you can choose the configuration you need.
The only question for me is whether they are affected by apple's firewire streaming bug. But as I've heard that in the info of 10.4.9 SDK is a statement, that core audio bugs were repaired, I hope the offset streaming problem will be finally the past...
Man I am really considering this firewire snake, as it definitelly has many ins and outs - including 4 AES/SPDIF in and out!!!
I am going to upgrade my studio and two of those will probably give me enough ins and outs for all my needs (musicians + outboard hardware and a summing mixer). I was also thinking about Symphony (PCI solution seems to be still more stable than firewire) and some I/O "modules" from apogee, but that is much more expensive. And I 've read only positive info about the DICE II, so maybe I will give a firewire another chance...

Why i not has two analog outputs at same time ?

Hi, i am try to output two analog signal, which is trangle and sine waveform, with my pci 6036E. i code with Labview 7.1 and the vi is in single loop with both triangle and sine wave analog output to AO0 and AO1.
someguy can help me to figure out is there any problem in my vi or is there any other way.
thank you very much in advance.
scott

Hi All-
Dennis is exactly correct- only a single analog output (or input) task may be run at once on any DAQ board. To add one small bit of advice, CUHK, you will also need to choose the correct polymorphic instance of DAQmx Write to reflect "N Chan N Samples" as shown here:
You will also need to build an array of waveforms using the Build Array function. Hopefully this helps-
Message Edited by Tom W. on 10-17-2005 01:08 PM
Tom W
National Instruments
Attachments:
nchan_nsamp.JPG ‏25 KB

Can I use two FP-AO-210's and one FP-1000 to obtain 16 channels of analog output?

Hello All,
I'm new to both Fieldpoint and LabVIEW.
I'm developing a control system that requires at least 9 channels of analog-only output. I have been trying to connect two FP-AO-210's to a single FP-1000 by connecting one FP-AO-210 directly to the FP-1000, and the second FP-AO-210 to the first FP-AO-210. However, Fieldpoint Explorer only detects the network interface and the first analog output module.
Is this configuration correct? Or, do I need a FP-1001 in order to use a second FP-AO-210?
Does anyone have any alternate suggestions on how to obtain at least 9 channels of analog output?
Thanks,
Eric W

Eric,
One FP-1000 (or FP-1001/160X/20XX) can control up to 9 IO modules. If the second FP-AO-210 is not being detected by FieldPoint Explorer there are a couple things to check. First check to make sure that all of the terminal bases and modules are firmly connected to each other.
Next, check the Power & Ready LED of the FP-AO-210 at address 2. Both LEDs should be lit. If they are not, de-power the system, remove the modules and terminal bases and make sure that you do not have any bent pins. Re-assemble and power up the system. Use FieldPoint Explorer again.
If the module is still not detected, take a look at the addressing of the detected modules. The system should be detecting the first FP-AO-210 at address 1 (or 1 + a multiple of 10 if you have s
et the FP-1000 to a different address). If the FP-AO-210 is at a different address, then it is likely a problem with the addressing circuitry either in the network module or the terminal base. Try swapping the positions of the two terminal bases and try again. If it works, then the error is in the addressing circuitry of the terminal base, if not, then it is in the addressing circuitry of the network module. Note: bent pins can also cause this.
Regards,
Aaron

High Noise on Analog Output PCI 6289

Hi guys
I am using a PCI 6289 M series device for A/D characterization , I am using the device both for the analog output generation and also for data acquistion of the digital lines , The dynamic tests for the A/D were showing a very poor SNR ratio of the ADC, it is a 12 bit adc so technically in the ideal case i should atleast see 90 db but the resulting figure was way lower around 40 db .
I connected the A0 from the PCI 6289 brought out to a scb-68 block to a RHODE and SCHWARZ spectrum analyzer , the above spectrum analyzer is a decent one with good analysis capability and I was surprised to see a SNR of 50 db , the data sheet says that PCI 628X devices have a internal 16 bit DAC so technically the SNR should be atleast 90 db even if 6 db were removed for the harsh environment of the computer .
please advise , have anybody else faced this problem , the data sheet does not give a figure for the SNR ratio of the card , since i need to test a 12 bit adc , thought that 6289 would be up to the task since it has a 16 bit DAC.I am using the Noise shielding cables and also SCB-68 block , the block is far removed from other power supplies .
any ideas why the noise is occuring , one of my colleagues says maybe the harsh environment inside the pc enclosure causes it , is it necessary to use a separate PCI box for the card and then connect the card to the computer , is this standard procedure ?????.
and also does the PCI -6289 have a filtering option for the analog output , all i could find was the filtering for input.

Hi Tom
Thanks a lot for responding to the thread , did not expect a response in the holiday season . The SNR for the 12 bit one was a typo , was referring to the 16 bit onboard dac in the M series card , which technically should ensure a clean input signal having atleast 90 db .
The info you have given helps a lot , i suspect the conditions inside the pc might be causing it , also i am driving the analog output from the card at almost its limits of 2.5 MS/s , the sample rate specification for the card on the data sheet says 2.8 MS/s , also i notice the settling time requirement for the outputs is 3 us which i suspect will put the onboard DAC under quite a load.
If the conditions inside the PC cannot be rectified , where can i find a external PCI box which can be connected to the computer or does such a box exist only for the PXI cards ? will that necessarily rectify the problem and also since filtering is not possible on the card itself , I remember reading the scb -68 connector block has single RC output filter option , i would have to use discrete R,C components to make it but notice on the right hand corner some pcb holes are provided , would this help.
Would appreciate your Response
Thank you
Chip learner

Using analog outputs in labview with

I have recently started using the USB personal measurement device PMD1208-LS from measurement computing with labview. I am having problems with using the analog outputs in labview i keep getting error message 41 "This function can not be used with this board" The outputs are working fine when tested with the supplied software but not when using the Aout vi in labview. has anybody else had problems with this and know how to resolve them? I have the analog inputs all working fine in labview.
Thanks

I have used the PMD12208FS and I used this vi to use the analog outputs for it. I obtained it from Measurment Computing ftp site. The data value is in mV. Hope this helps.
Attachments:
PMD1208FS_AOut_lv61.vi ‏17 KB

Error when generating waveform analog output on NI 6704 card

Hi, I am trying to understand why NI 6704 card appears to be incompatible with what I'm trying to do.
I want to use a waveform to generate an analog output voltage on a NI 6704.
I have a vi in the style of the waveform buffer generator in this example:
http://zone.ni.com/devzone/cda/epd/p/id/4837
which creates the waveform. In my main routine I attempt to create and write a DAQmx ao task using the waveform information, but get this error:
Possible reason(s):
Requested value is not a supported value for this property. The property value may be invalid because it conflicts with another property.
Property: SampTimingType
Requested Value: Sample Clock
You Can Select: On Demand
Task Name: _unnamedTask<7D>
According to documentation the 6704 has no onboard memory... but it's not clear to me how the DAQmx functions are actually sending the data to the card, i.e. if they are attempting to read and store the waveform buffer on to the card, it the lack of memory on the card could be my problem. Is is correct that that is part of my problem? Or since the error has to do with the sample timing clock, is my problem that the 6704 uses software timing?
I've run my program successfully on an NI 6225 card... are there any work arounds for generating such an output on a 6704?
Thanks in advance!

The error has everything to do with software timing. Your device does not have a hardware clock so you get an error when you try to configure it. To output a waveform, you have to do out one point at a time. You can only do this at a low frequency and it will have considerable jitter.

PC able to detect all except for the analog output channel of my SCB-68 device.

I would like to use the analog output channel of my SCB-68 device. I tried to locate the analog o/p using the wizard but still unable to detect. Why is that so?
Any possible steps/procedure that i have missed out?
Thanks

Rezn,
Aha, therein lies the problem. This was what I suspected, and thus my question as to which data acquisition card you are using. The DAQCard-AI-16XE-50 has analog inputs, digital I/O, but no analog outputs at all. So your card is working as it should, but it has no analog outputs.
If you have the 2002 National Instruments catalog, you can see this in a table on page 231 (your DAQ card is the one on the bottom), or check this pdf file:
http://www.ni.com/pdf/products/us/2mhw254-255e.pdf
Your card is also called the NI6012E. Check out the small table on the first page.
Mark

Multi channel analog output

I'm trying to make analog output pulses of microsecond order
via 3 output channels.
I try Daqmx write for that goal..and I can make single channel
pulse with pulse vi in Signal processing category
But ,I have difficulty in make pulses for more than
two channels.
When I try , Labview always make error(that I can't understand)
or do not make signal at all.
I also tried to make analog output for DC ,and it works.
I don't know,however, how I can modify this for pulses.
I will link screen captures of my labview program.
http://www.mylv.net/include/file_download.asp?file=/qna/data/PULSE.JPG&size=80854
http://www.mylv.net/include/file_download.asp?file=/qna/data/MLTI(0).JPG&size=63567

ok i made you a small application in LV 8.2
it might not work at first try, so you will have to play around and modify as needed.
you have an array that define the pulse width and relative phase for every channel (every line of the array defines a channel, in order). it is then transformed into a 2D data array, and sent to buffer.
this approach will work as long as there is a proportional relation between the rate of output and the width of pulses, to avoid underbuffer problems.
ifyou have to update lots of channels lots of times, then you might want to cycle your writing trough the buffer.
dont forget to write in the "physical adresses" control the ful list of channels used.
Message Edited by Gabi1 on 11-29-2007 01:19 PM
... And here's where I keep assorted lengths of wires...
Attachments:
multichannel pulses.vi ‏35 KB
multichannel pulses.png ‏14 KB

6035E Analog Output problem

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