Tension AC with DAQ card analog interface

Similar Questions

• MAX with replication DAQ cards

  Hello

  Hope someone could shed some light on this

  Its a long time since I've used Labview & MAX and am a little rusty right now.

  I'm trying to upgrade an old data acquisition system to a newer version.

  This is because originally one full working backup system was necessary, but because the old DAQ cards are obsolete,

  a simple update was necessary.

  Old system:

  LabVIEW 7.1

  MAX 3.1.1

  Data acquisition card: PCI-6023E

  New system:

  LabVIEW 7.1

  MAX 5.0

  Data acquisition card: PCI-6220

  There is no change in the Labview application.

  In the new 5.0 MAX.

  I'm trying migrate/replicate all virtual channels & settings of the old system.

  I managed to set up a new configuration using file for the acquisition of data from the old system.

  This resulted in the creation of chains of virtual of NOR-DAQ traditional under the District of data, which is what I wanted.

  But the problem is, all the channels received a red cross.

  Clicking on properties of the individual chain shows that no device is selected in the hardware section. There is none to choose from.

  Under devices & Interfaces,.

  The new card is correctly installed and running.

  Appears as > NI PCI-6220 'Dev 1.

  How can I make this device available in virtue Traditional NOR-DAQ virtual channels in the data area?

  Is it because the new MAX/data acquisition card requires the method task NOR-DAQmx to create virtual ways?

  I want to migrate channels instead of recreating that there are a fair few and each with their own settings.

  In the old system.

  Under devices & Interfaces,.

  That's what it shows:

  -Devices of NOR-DAQ traditional
  PCI-6023E (1 device)

  -OR-DAQmx devices
  -PCI-6023E: "Dev 1.

  The device is recognized under the District of data - Trad VC through NOR-DAQmx devices.

  I can attach a screenshot for systems if it would help at all.

  Thanks in advance!

  -Ram of Aust

  Bad news...   Your most recent 6220 is a M-series it is * not * supported by NOR-traditional DAQ.  This is why it does not appear as an option under the traditional OR-DAQ driver.  To use the most recent data acq card, you * must * swtich above DAQmx.

  Your old 6023E Board should be accompanied by one or the other pilot (but never both at the same time), so it may be be jointly installed a print while you set on the (tedious) company to recreate channels for your new Board in DAQmx.

  -Kevin P

• selection of the daq card to get the angular position of 6 motors with encoder

  can you suggest me best daq card to use 6 positions of engines as outputs using encoders attached to the engines. I'll use single window for each engine. Or what can I use a single window for all the coders of engines?

  Hello Prabhakar7117,

  You need a counter for each encoder. Because you are going to use 6 encoders, you should get a DAQ hardware with 6 or more counters. Take a look at the PCI-6624 or PCI-6602. Another option would be a CompactDAQ chassis with modules that are able to access counters. Take a look at them.

  PCI-6624

  PCI-6602

  KB which cDAQ Modules can be used to access the counters of the shipped?

  Best regards

  Alina M

• Synchronization of several high at different frequencies of sampling DAQ cards.

  I'm having sync problems 3 high DAQ cards with different sampling frequencies. I use 2 cards PXI-6259 nec 10,000s samples and 1 PXI-6221 Board to interface for my SCXI modules in 10 samples/second. The problem that I discovered is the time related with the waveforms of the NI PXI-6221. When I run the code on a development computer using virtual devices in MAX, it works as expected. When I run the same code on real hardware, the stopwatch turns approximately 25 X faster than normal. I enclose the code and the config that I use.

  Any ideas?

  Hi NGNN CAD.

  First of all, let me say that your code is very nice!

  The problem is that you are using the fast sample for the device that is supposed to be slow clock:

  

  Even if you specify the rate as 10 Hz, the clock itself is still at 10 kHz (by specifying the right rate allows the DAQmx driver determine the size of buffer etc and don't actually change your external sample clock speed - however, it changes the rate of the simulated device).

  My recommendation to synchronize devices would use the built-in PLL and lock to the reference clock 10 MHz of your PXI chassis.  Your devices would always share a trigger to start, but each would generate its own sample clock based on its time base that is locked to 10 MHz reference.

  The code should look like this:

  

  I hope this helps, let me know if you have any questions!

  Best regards

• PCIe-653 x with DAQ traditional

  Hello

  We want to update some of our network using a PCIe-6536. Is it possible to run this card with traditional NIDAQ?

  Does anyone have experience with the PCIe-653 x with DAQ traditional. Or is it only possible to run this card with DAQmx?

  Greetings

  Oliver

  Hi Oliver,.

  PCIe cards not are usually not supported by the old traditional DAQ driver.

  In any case, you should consider updating your application to DAQmx as TRANS. data acquisition support is quite limited (see also the official statement of OR below)

  "Caveat ".  NOR-traditional DAQ
  (Legacy) is an older driver with the obsolete application programming
  interfaces
  (API) for the development of acquisition data, instrumentation and control
  requests for former of National Instruments DAQ devices. You must use
  NOR-DAQ traditional (old) that in some circumstances. Refer to the
  File Readme of NOR-DAQ for a glimpse of the two API NOR-DAQ, the
  benefits of
  NOR-DAQmx and more information about when to use NOR-traditional DAQ
  (Legacy)
  including a complete list of devices supported, operating systems,
  application
  versions of the software and the language versions. You can install the most recent
  version of
  NOR-DAQmx software, available at ni.com/downloads.
  "

  Kind regards
  Bernd

• Data acquisition in LabView for other suppliers DAQ cards that NEITHER

  Hello

  I am a beginner in LabView programming. I have a 32 channels base PCI card DAQ (i.e. PCI-1602 of the manufacturer, ICPDAS) and I want it to interface with Labview 8.5.

  So how cards DAQ in Labview 8.5, which are manufactured by other suppliers that NEITHER? Should I DAQmx (or some other driver) for that?

  What are the other drivers/components required to access of data PCI-1602 (device) of LabView 8.5 acquisition card?

  (1602-PCI card driver are installed in my win XP and dispalyed in Device Manager).

  Please provide some tutorial above mentioned the problem to interface.

  Please guide me in this regard. Thank you

  Waqar123 wrote:

  Hello

  I am a beginner in LabView programming. I have a 32 channels base PCI card DAQ (i.e. PCI-1602 of the manufacturer, ICPDAS) and I want it to interface with Labview 8.5.

  So how cards DAQ in Labview 8.5, which are manufactured by other suppliers that NEITHER? Should I DAQmx (or some other driver) for that? You will need the drivers from the manufacturer, of the Board of Directors.  In your case, "ICPDAS.

  What are the other drivers/components required to access of data PCI-1602 (device) of LabView 8.5 acquisition card? Same as above.

  (1602-PCI card driver are installed in my win XP and dispalyed in Device Manager). Ok.  Then take you care of my 2 answers above.

  Please provide some tutorial above mentioned the problem to interface. To learn more about LabVIEW, I suggest that you try to watch some of these tutorials.

  Please guide me in this regard. Thank you

  According to what you do with the DAQ cards, they can do the job however, from experience, there are some functions that I could achieve with the cards NOR that I couldn't with 3rd-party maufacturers.  This does not mean that this is your case. However, it is worth noting that it took me a while to understand why the code has worked with a single data acquisition card (NOR) but not another (Non-OR).

  The drivers that you have installed may or may not include examples and code in VI.  They may be DLL.  If this is the case, you can write LabVIEW "Wrappers" around these functions, as it will simplify your life.  If the drivers are in the form of DLLs, and there are no examples of LabvIEW or available VI, you must read on node library function call.

  R

• Acquisition of data using the DAQ card

  Hello everyone

  I need assistance with the acquisition of data of the generator of signals through DAQ cards. I plugged the signal to the SCB-68 generator where the analog inputs of the generator are connected to AI CH5 and AIGRND of the Terminal Board. Then the output of the block is connected to the DAQ card. The maximum sampling frequency of the card is of 250 kech. / s. The problem is for reason that I am not able to see the waveform on the labview. I looked at other examples to find the problem, I am, but I am not able to understand this. I want to be able to choose the sampling frequency. I attatched my code as an attatchment for you all to help me know what the problem is. Any suggestions will be appreciated.

  There is no task!  You have not specified any hardware (i.e. your data acquisition card) anywhere.

  Here's a suggestion.  MAX aperture.  Find your DAQ hardware.  Open a Test Panel.  Implement a continuous sample of N Points to some sampling rate.  Press Run and convince yourself that you get the data.

  Now, while remaining in MAX, to create a task, using the same settings.  Call for example something sensible ("MyFirstDAQTask" is not a good reputation).

  Now, go back to your code.  Eliminate the first two functions DAQmx.  Wire a constant task to the DAQmx Start feature.  See the little triangle down?  Click it, and it should show you the tasks he 'sees', the only one should be the task that you created in MAX.

  Note that 'Samples Visible' is now 'hard coded' in the task.  To get its value back out, you need to put a property node Timing DAQmx after the task start and pull on the quantity of the sample, samples per channel (which, for reasons that escape me, is a Dbl, you need to convert to an I32 before importing it into the while loop).

  Bob Schor

  P.S. Thank you to join your code.

• help on select M Series DAQ card

  I have type resistive sensor in response to the impact (special potentiometer). I want to first test its dynamic property (degree of sensitivity to the hose stream) and then to design a simple circuit to trigger an output transistor with threadhold predetermined impact.

  I need a DAQ card to save data to a tension between the potentiometer, and my output transistor. I felt a 250 kech. / s, and 16-bit (even 12) entry is good, and no requirement for AO / DO.

  I prefer to use a laptop for the data analysis. My questions:

  1 should be a type USB DAQ for this application? If this isn't the case, I will return to a PCI card.

  2. If the USB is selectable, I fight with the (USB - 621 x) Bus-powered and non-powered bus (such as USB - 622 x); insulated and uninsulated. Note that none of the supplied external DAQ isolated function.  Among my preference: USB-6221, USB-6215 or USB-6211, which is more suitable for my data acquisition?

  Thank you all.

  Sue

  Super! This morning, I decided to place the order with the USB-6221 and I am very happy that you assured me. Thank you, Khil.

  I acctually overlooked the phrase "single channel and aggregate" x 621. I have no doubt the rate of peripheral bus before but not found where was wrong. I also discovered that 6221 provides both sinking and DI I'll use two types of supply. Now I'm comfortable with the $ 200 more on externally powered one.

  Sue

• Trigger restarts on DAQ card

  Hello.

  I do data with a DAQ card acquisition, model USB-6251.  I need something like the sample VI "Acq & chart voltage-Int Clk - HW Trig Restarts.vi", except that I need the trigger for restart of much more effectively.  When I run that sample VI (and my own adaptation which is attached), I can't get that relaxing about 30 Hz rate and trigger that comes less than 30 ms of the previous, it is simply ignored.  I need to support rates up to 1 kHz trigger. Anyone has any ideas, or is there another way to go about it which will avoid this problem?

  Thank you

  Jeremy

  Attached is an example of merging with the event structure to do the actual reading of the analog channel.

• Possible to use labview with daq system not of NOR?

  Hello

  I have a daq system and the software from another company that NEITHER. But I want some changes in the software. If the opportunity was to make a new program with Labview.

  Is it possible to use the old system of data acquisition? Is this compatible with Labview? Or I have to buy new hardware?

  Thank you.

  Hi VIassaks,

  Good afternoon and I hope that your well today.

  Thanks for the post.

  LabVIEW can communicate with 3rd party hardware using the library function call is located in the tip under the functions Palette palette. If your equipment is equipped with a DLL at the driver level LabVIEW can communicate with the hardware. However, you must obtain documentation of the DLL so that you can create your own interface for the material of the part 3.

  Another option would be if the hardware manufacturer provided LabVIEW VIs that control their material. You will not be able to use the screws (National Instruments Data Acquisition DAQ) because these screws use the DLL OR-DAQ, which is our software at the level of the driver for our DAQ cards. Other companies use their own software to the driver level to control their own material. Only the National Instruments hardware uses the NOR-DAQ driver that allows you to use LabVIEW DAQ screws.

  Hope this helps,

• How to connect a simulation on the design of controllers to DAQ card?

  Hi guys... I have problems about control and design on the way to the simulation I just do simulation PID and I can not to connect to the path of the simulation DAQ card in the control design (function)... can someone help me how to connect that?

  

  Ayubi,

  First of all, remember that the control and the Simulation has a PID in the Palette "control and Simulation > Controllers.

  Then, to connect to a data acquisition card, you must use the DAQmx interface is there to connect. In general, National Instruments recommends allows you to deploy a controller a real-time system, but most likely your Windows computer should be good enough for your application. Please see the example of the expedition (in 2013):

  C:\Program Files (x 86) \National Instruments\LabVIEW 2013\examples\Control and Simulation\Simulation\Real - time\DAQmx\RT PXI DAQmx single channel PID.lvproj

  If you don't have a LabVIEW Real - Time (RT), you can simply open the VI:

  C:\Program Files (x 86) \National Instruments\LabVIEW 2013\examples\Control and Simulation\Simulation\Real-time\DAQmx\DAQmx single channel PID.vi

  Remove the shared Variables in the code and he would be executed on a computer with a DAQ card.

  

• LabVIEW code for two daq cards

  Hi all

  I'm reading the analog signals using the USB-6210 device and function DAQmx. How to write my code so it would work with the NI USB-6210 or USB-6218 since both a pinout similar devices.

  Thank you

  dp128

  Do not write anything to recognize a different DAQ card. It's as simple as that. They both have the same number of input channels, and they both have the same maximum sampling frequency. You will only need to worry if your program was out analog.

  When you install a sinlge on a pc data acquisition card, MAX lists it as dev1. If you do the same thing with a different DAQ card on another pc, it is listed here as dev1. As I said, there is no difference to explain.

• Error-200284 when using two daq cards

  I have an application written in Visual C++ that reads data out of a data capture with success card. However, now we want to add a second DAQ card, so we can increase the number of input channels. However, I have trouble getting the second card works fine. He continues to give the 200284 whenever I try to read the input data. I tried playing with the two loops in the same thread and with them in threads separated without result. Any ideas on what could happen?

  Thank you!

  Hello Kaladin,

  I'll take a look at the link below to see the cause of the error, but also some common things suggested to try.

  http://digital.NI.com/public.nsf/allkb/FEF778AD990D5BD886256DD700770103

  Best wishes!

• Ghost NI USB DAQ card readings

  Hello

  I have a question about the behavior of the NI USB-6218 data acquisition card.  Right now I use Labview to take several current readings of different channels to HAVE it.  I use resistors 250 ohms for each channel just as the instructions say to make the current readings.  I had an incident where he has been disconnected one end of a resistance at the entrance to the port.  I expected to see the reading go to zero, but instead, he began to piggback off the coast of reading one another channel give me a kind of 'reading ghost' because there was essentially no current crosses.  Playback of disconnected channel displayed the current reading of the canal connected even while values went upwards or downwards.  Can someone explain why the DAQ card would do that? and anyway to avoid this to happen?

  Thank you.

  A data acquisition uses a multiplexer to send a signal to the ADC.  Due to having only 1 ADC, you will get this effect if the ability has no way to bleed.  There is no way to avoid this if you disconnect the side DAQ, leaving the open input channel.

  You could try adding in some amplifiers specially designed for the shunts of currents.  I have used TSC103IPTwith success.  This amplifier gives you a single output is completed.  But I don't know what will happen with these if you disconnect one side of the resistance of the amplifier.

• 9174 OR with 2 cards 9233 and 1 card 9234

  I want to use a 9174 OR-DAQ with 2 cards 9233 and 1 card 9234, 9233 card allows us to sample up to 50 kech. / s and the 9233 up to 51.2 kech. / s. Now, we start the sampling at the same time. We work with 12 microphones, four in each card. It does not matter if each card samples at a different pace, we only need the highest possible in all cases. The problem is that we have not found a way to do this with the DAQ 9174 materials. When you have completed a task of sampling, it seems that sampled to 51.2 kech. / s with all cards, even with the 9233. What can we do to accomplish this task? Thank you in advance.

  Hi Luis,.

  You see the expected behavior.  As you have noted, the 9233 has a maximum rate of 50kS/s and the 9234 a maximum rate of 51.2 kech / s but that's only what they are capable of using their internal time base.  The 9233 specifies a max rate using a base of external time of 51.3kS / s.  When you put s and 9234 9233 s in the same spot, DAQmx chooses the fastest time base module (in the 9234 in this case) and he shares with the other modules.  This has the effect of executing your 9233 s to 51.2 kech / s and is located in the module specifications.

  I don't know why you do not want to run run the 9233 s 50kS/s, but if you wanted to you could put them in a separate task without the 9234 and they would use their internal time base to run 50kS/s.

  The other option is to define the basic source of time clock sample and the rate to a base time of one of the 9233 s.  If all the modules have been in the same spot, your 9234 would go then to 50kS/s as well.