Installing labview before DAQ card?

Hi,
We've just bought LabView 8.2 and a new DAQ card, PCI 6281 M series...
What I was wondering was whether there is any order in which these need to be installed. At the moment there is no pre-existing version of LabView or DAQ Software on the computer.
I have just read that the drivers that came with the DAQ card need to be installed before the card is inserted into the PC, but am not sure if LabView is supposed to be installed before or after the card or if it even makes any difference.
Thanks,
Harry

Thanks!!

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I use labview 8.0 and i can not run daqmx driver for pcmcia 6062e daq card

i use labview 8.0 on window xp .when i installed a PCMCIA daq card 6062E, i could not run daqmx driver.It is fine to see that the traditional version is working well.When i install daq card sometimes it is working well with traditional driver but mostly i see error on reading an analog input from PCMCIA daq device.An error called 'base adress' occures .I use last version of driver that is daqmx 8.0.1. and i have installed this correctly but again i could not see any signal on the test panel for daq-mx driver.I don't know what is the problem.Also when i install PCMCIA daq card Please reply this message.I need your helps.
Thanks

Hello,
Thanks for your reply.I will try to answer your questions.
I have checked the Device Mananger and I have seen that the device is detected by Windows XP. For another question the card shows up under both NI-DAQmx Devices and Traditional NI-DAQ (Legacy) Devices consistently in the Measurement & Automation Explorer.I use a way that I reset the driver for traditional NI-DAQ in MAX,and then i reset the device for NI-DAQmx driver in MAX and again i tried to run the test panel of DAQmx driver but again i saw a wrong signal or noise signal on the test panel i could not see the sinusoidal signal that i connected. i do get the test panels to run with the card using the DAQmx driver, But could not run the DAQ diagnostic utility.The error was as i specified below.
03.05.2006 09:49:35
Results saved to: C:\Documents and Settings\serkan\Desktop\Diagnostic Results.txt
Selected Device: Dev1
Device Type: DAQCard-6062E
Serial Number: 107509E
Device Support: (PASS)
NI-DAQmx Version: 8.0 (PASS)
Device Reset: (FAIL)
Error -50002 occurred at an unidentified location
Possible reason(s):
The specified device is not a valid device. The operation could not be completed as specified.
------ DIAGNOSTIC UTILITY ABORTED -----
And for your last question i can say that i have used the DAQ card on other laptops.But the results were the same.İ hope to see your reply
Thanks,
Serkan Buhan
Electrical-Elecronics Engineer
Researcher
TUBITAK-BILTEN

6229 DAQ Card: Problem if only one connector is connected

Hi!
I'm using a LABVIEW 6229 DAQ- Card to acquire signals. Unfortunately I only connected on of the Connectors of this card and left the other one unconnected (This means that one half of the analog inputs is connected to nothing). So far no problem :-) Unfortunately I'm still measuring signals on the analog input channles that are not wired to anything if I'm measuring signals on the analog input that are wired!?
The signals of this unwired analog inputs are quite similar to those of the connected ones..
If I only measure analog inputs that aren't wired to anything I see a voltage ramp or a constant voltage of -10V as I would expect. Any idea what could go wrong? All this seems a bit strange to me :-)
Thanks for your help!

But I also don't see ghosting at the unwired channels if i'm measuringsimultaneously
at the wired channels. Only if I'm measuring only unwired channels I see ghosting at that is what seems strange to me...
If I would always measure ghosting at the unwired channels everything would be fine :-)

Can I develop a data acquisition app without the DAQ card installed?

I'm new to LabView.
I would like to build a simple data acquisition app (graphical display and logging). I would prefer to build this on my desktop, and then install/run it on a laptop.
I'm not sure how to work this as the DAQ card and driver are not installed on my desktop. Is there a (hopefully) simple way to configure a data source in labview so that the app will automatically (or at least easily) connect to the existing driver?
At the end of the day I don't want to install the complete dev system on my cheap little laptop just for this one application.
TIA,
Michael

yes you can develop an application without having a daq card installed. You still will use the same functions in labVIEW. If you are using labVIEW 6.1 they are under the data acquisition palette in the block diagram. If you are using LV7 there are now two types of data acquisition functions. Traditional NI Daq (before lv 7) and new Daq MX. The daq functions are under the NI Measurements palette in LV7. If you are new to LV I suggest you use the daq assistant on the bottom of the palette. This will allow you to easily configure what you want, the drawback is that you will need to use this on the computer that has the card. So try the traditionaly nidaq functions. They will allow you to develop without the card. hope this helps.
BJD1613
Lead Test Tools Development Engineer
Philips Respironics
Certified LV Architect / Instructor

LabView DAQ card programming

I have recently started using an NI USB-6211 DAQ card on my laptop. I have the driver software installed and the DAQ is working, but when in LabVIEW main package, I dont have any functions in measurement tab or express tab to use to control the DAQ . I would appreciate some help
Solved!
Go to Solution.

That version of DAQmx is not supported with LabVIEW 2012.
Try download the newest driver, version 9.7, http://joule.ni.com/nidu/cds/view/p/id/3811/lang/en

How do I use two DAQ cards in one Labview code? Current I'm getting error " error 200558 occurred at DAQmx Create Channel.vi. One task cann't contain multiple independent devices". Can someone help me?

The two DAQ cards are NI PCI-6070E & NI PCI-6052E. The Labview I'm using is labview 7 Express and the Window system is Window XP. I'm using NI SCXI-1000 chasis and SCXI-1102 & 1102B two modules plus a feedthrough SCXI-1180. 1102 is connected through SCXI-1349 cable to DAQ card 6052E while 1102B is connected through SCXI-1349 cable to DAQ card 6070E. SCXI-1180 is connected to 6070E through SCXI-1349 adaptor on the back of 1102B.

Sarah, thank you for replying my question. It seems that I'm making progress everyday (smile). I'm able to run the test using both daq cards in my code now. But as I'm moving forward, I'm getting new questions too. How do I use one STOP button to control both tasks and how can I save data into one single file?
I attached my code here hoping you can get the specifics on my application by looking at the code. Thanks very much!
Thanks.
Attachments:
DAQmx_Task_Example_plus_voltage_2.vi ‏416 KB

How can I create software start and stop trigger in LabView using 6023E series DAQ card? I don't want to use the external trigger.

I am using 6023E DAQ card to collect the signals, such as AE, Force, Torque from the machine. I want to collect only some part of signal for example between start triger and stop trigger. I'd like to know how I can creat those triggers in LabView from one of the channels that I am acquiring at the same time. I found one or two library file that is only for start trigger. I know that this is availabe in some of DIAdem functions. Please let me know if you have done some example for this requirement.

If you are wanting to create a software trigger based on an analog input voltage in LabVIEW, there are several options. One suggestion would be to compare the voltage values from one input channel to a number within a loop. If the input voltage crosses that threshold (is greater than the number), have a case statement that will acquire data from the other channels. This would simulate a software start trigger in LabVIEW.

Need an enable/disable Labview VI for SC-2062 relay board using PCI-6503 DAQ Card.

I am using Labview 6i, and I need to write an enable/disable VI that will enable and disable 6 of the 8 relays at any time while keeping the whole vi running. Therefore one or more positions may be changed at a time, but positions that don't change cannot be interrupted when changing others (no port resets allowed). I was wanting to maybe send a 1 by 6 array of some sort out but I can't figure out how to use the array to communicate with the DAQ card, relay board and SC-2051 adaptor. There also needs to be error handling in and out. Thanks for your help. Any examples would be very helpful.

Hello;
The best way to go about that is to disable the data points correspondent to the channels you want to disable. Meaning that you can ignore the datapoints of the channels you want to disable on the fly. That is the only way to disable channels on the fly.
Regards
Filipe A.
Applications Engineer
National Instruments

How to arm channel 1 of a PCI 6133 DAQ card using labview?

Hi,
I am new to the Labview and I need some help. I have a PCI 6133 multifunction DAQ card and I'm using Labview 8.2 to capture five channels waveform data. I setup channel ai0 to be the trigger channel and I need to capture data from ai0, ai1, ai2, ai3, and ai4 when ai0 is trigger.
Question:
1) I am using DAQ assistant to configure my channels. How can I arm the channel ai0? I have an "execute button" and it should arm the scope when I click it.
2) Is there trigger ready signal, so I can save all the channels data when channel ai0 is trigger?
Can anyone provide some help?
Thanks

Hello wirte spreedsheet,
Thanks for posting to Discussion Forum. It looks like you are using the
PCI-6133 to acquire analog data from ai0:ai4. You want to use ai0 as
the trigger for the other channels.
Does your application need to be retriggerable?
Are you doing continuous acquisition?
Are you doing Analog start trigger or reference trigger?
Take a look the following shipping examples, found in LabVIEW click
Help>>Find Examples. On the browse tab, Hardware Input and
Output>>DAQmx>>Analog Measurements>>Voltage:
Cont Acq&Graph Voltage - Analog SW Trigger.vi
>> This example demonstrates how to perform an analog software
triggered acquisition. The example allows the user to specify the
triggering condition and the number of pre-trigger samples to acquire.
Cont Acq&Graph Voltage - Int Clk - Analog Start.vi
>> This example demonstrates how to continuously acquire data
(Waveform) using the DAQ device's internal clock and an analog slope
start trigger.
Take a look at these applications and let me know if you have any questions or comments.
Have a good day.
Regards,
Sandra T.
Applications Engineer | National Instruments

Accessing DAQ-Card 1200 in LabVIEW?

I configured Daq-Card 1200 in MAX, set the input and output values and so on. How can I now access the card in LabVIEW. Should there be maid any additional configuring under LabVIEW since first time I set up in and out values in MAX there was a place I could set different values to different channels but this time the configuration window lacked many things it used to have.

When you configure the device in MAX, MAX assigns Device Number to the DAQ Cards starting with 1.
In labview you can open up DAQ example and run it by specifying correct device number and channel number from which you want to acquire data. You do not need special configuration in labview.
Hope this helps
A Rafiq
National Instruments
http://www.ni.com/ask

Develop & test a LabView program on a PC without DAQ card ?

Hello,
I am a LabView beginner.
I would like to know if it is possible to develop & to test a LabView
program for fast data acquisition (which uses double buffering) on a
computer that have no a DAQ card.
Many thanks in advance
Francesco Di Maio

I think see ur channel control string.It should include both index and channel number.may be u have entered config only ch0 not for others
so increament ur ch index and ch number,
I hope it will help u.
Haider

Can we demodulate the signal recieved at DAQ card without using any hardware interface(by only using labview)?

Hi all,
Can we demodulate the signal recieved at DAQ card without using any hardware interface(by only using labview)? if yes then how? please give brief idea.
Regards,
Amit

There is probably a way to do it, but it it may be easier to use an X-series board for the job. They support a new counter capability for count reset on a digital edge without needing to be configured in encoder position mode. I am not sure exactly how that feature's been implemented however, so maybe it won't make things easier after all.
The plan based on the hoped-for behavior:
1. Configure an X-series counter for pulse generation based on "ticks" of your clock channel.
2. Set both initial delay and low time to the critical # of ticks.
3. Configure for count reset on a digital edge (if possible in pulse generation mode)
4. Configure the count reset value to be the critical # (or possibly 1 less, if possible in pulse generation mode)
5. If you want the output to remain high indefinitely, configure the counter task to use its own output as a
pause trigger, and pause while high.
The way pulse generation works is to preload a # of "low time" ticks into the count register. Then every source edge will decrement the count. When the count reaches terminal count (0), the counter's output is toggled (or can be configured to pulse). The register is then loaded with the # of "high time" ticks and the process continues.
You would be perpetually interrupting the count-down process as long as you got your triggers in time. The count would keep getting reset to the # of low counts, keep decrementing toward 0 without reaching it, and so on. If ever you did reach 0, the output state would toggle high, then the high state would prevent subsequent clock signals from decrementing the count.
You can conceivably do a similar thing with a 6601, but I'm pretty sure you'd need 2 counters working together to get it working.
-Kevin P

How to read the gain list of a DAQ card from labview?

Hi,
Its known that you can set the gain of an ADC of a DAQ card by setting the high and low values.
Different cards have got different signal ranges corresponding to different gains.
My question is ... Is it possible to read the gain list of a DAQ card from labview?
It is definitely possible to read the signal ranges available for the device. It would be very helpful if some one can tell me the method to read the gains corresponding to the signal ranges.
(Even the device specification provides only the signal range but not the gain corrsponding to it )
Thanks
Message Edited by Vsh on 04-08-2008 03:50 AM

Hi Vsh,
It appears that you have found the gains applied for the various ranges (I assume from the user manuals). So if I understand your question correctly, you are looking to poll the card for the current gain (or the various gains available)
Because DAQmx selects this for you (unlike Traditional DAQ), there is not a way to poll directly. If you want, you could poll the min/max values and then use this to figure out the range setting (and thus the gain).
Please refer to this post, it gives more information about the gains/ranges in general.
I would suggest putting in a product suggestion if you would like this feature. Those go into the decision making process for our R&D team, meaning they actually do look at them. If you wish, I can submit a suggestion internally was well for you, that way your suggestion gets 2x the exposure. Let me know if you want me to do this.
Neal M.Applications Engineering National Instruments www.ni.com/support

Hi, i'm new in lab view. i'm using 3'rd party daq card to get data using labview

i'm still green in this field. can anybody help me on how to get various data from daq card(not an ni brand) using my labview programming. i use labview 6 and i don't know how to get the data so i can display it in my programming. i used Pcl 1800 and pcl 836 card of advantech brand.

Greetings,
Below is a link to a KnowledgeBase, which discusses your options:
http://pong.ni.com/public.nsf/websearch/F3009806E2AE416E8525645D0076B962?OpenDocument
It appears that Advantech has a LabVIEW driver available. Below is a link to information about the driver on their Web Site. I would suggest trying this option, as opposed to using the Call Library Function with Advantech's driver DLLs:
http://www.advantech.com/content/0000000175/0000000175.asp?css=corp&name=corp
Good luck with your application.
Spencer S.

Can your DAQ cards do TRUE async buffered daq while Labview does other things?

I need to perform analysis on and save aquired data while the DAQ card is simulataneously and independently performing another scan session, initiated by an external trigger. I've found what look to be virtual or pseudo asynchronous buffered daq functions, but is the 6034-E or any other DAQ card capable of true async buffered aquisition via DMA while Labview is executing other things separately?

testy,
Yes, you can acquire, analyze, and save data simultaneously. There are examples that illustrate this that ship with LabVIEW (Help > Find Examples). Any buffered data acquisition is capable of this. Once the buffered acquisition is setup it is going to continue to sample the channels specified and put the data into memory via DMA (if available). Inside the while loop of your program you will do a read which reads some data from memory and brings it into LabVIEW's memory. So if in this while loop you also do some analysis and stream to disk that isn't a problem as long as you call your read function fast enough that your buffer doesn't overflow (the buffer that your DAQ card is shoveling the DMA transferred data into). All of our DAQ boards use DMA (if a
vailable) by default for data transfer.
Ames
Applications Engineering
National Instruments

Installing labview before DAQ card?

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