Selection of encoder to use with NI PCI-6221 for a project of inverted pendulum

Similar Questions

• Need help on the use of the PCI-6221 and c# to control three digital Port and an analog of entry

  I need to send the digital output at three ports and then read an analog input voltage using the analog card PCI-6221.

  I did a c# program to fight against it. I built four tasks altogether. Three tasks for three digital output ports and a single task for analog input.

  How can I reduce the time?

  Using my method, to 3.3ms in total. And it's slow.

  I can build one task for three ports?

  What is the best way to the control task to reduce the time of communication with the PC?

  Is that possible to save a lot of analog reading entry in the memory of the DAQ hardware and then read it all together from the computer in order to reduce time consumption?

  1 million thanks!

  Hello

  Hi Jin,

  To answer your questions, Yes, you are able to configure a task of digital output to use three output ports and PCI-6221 has a buffer of memory FIFO aboard 4095 samples.

  I would like to direct you to the example of NOR-DAQmx for c# files located in the following location on your computer

  C:\Documents and Settings\All Users\Documents\National Instruments\NI-DAQ\Examples\DotNET2.0

   

  Here, you will find predefined examples in c# that should give you a good idea of how to go about architecting your code to achieve the results you need.

  There is also a useful help file which you will find by navigating to Start > all programs > National Instruments > NOR-DAQ > help of NOR-DAQmx .NET Framework 2.0

  I hope that this answer is useful.

  Best regards

  Steve H

• simulate the 6703 PCI card for remote project development

  I am remote programming an application that uses an NI PCI-6703 card connected to the computer in the lab.  So how do choose the right port using DAQmx when I know the specific channel that the hardware is connected to?

  Thank you very much

  Vince

  I have the NMS infromed, using MAX, under Interfaxes and devices, right-click on the NOR-DAQmx devices to create new OR-DAQmx devices.  Select the device under nor-DAQmx simulated devices, that's all.

• Can I use with NI PCI-6233 of SCXI signal conditioning

  The title says it all. I wonder if I can use my unit with the NI PCI-6233 industrial data acquisition card and if so what cable should I use between the chassi and map of SCXI signal conditioning?

  Hello Tsthorsell,

  This feature is not plausible. This can also be verified by simulating the chassis and unity, the 6233 OR cannot be selected as the transmitter/receiver.

  Best regards

  M Ali

  Technical sales engineer

  National Instruments

  www.NI.com/support

• Addition of encoding to use with Omniture

  I have to add the coding to track the Project Muse in Omniture. Can I add coding for the exported index.html file or one of the other exported files of Muse. Thank you.

  The answer is: it depends. If you follow just a page with Omniture, you probably just add the code to follow up on a single page. If you care followed by several pages, you will need to add several pages, or add it to a master page.

  If you have some HTML code for Omniture followed by integration, you can use the function "insert HTML" to put on a particular page, or if you need to add it to thetag, you can do so through the dialog box properties page for the page you want to track with Omniture.

• I recently got an iPad Pro with the intelligent keyboard. Is there another case, that it can be used with the smart keyboard for more protection?

  Is there something else that can be used in conjunction with the smart keyboard from Apple for my iPad Pro?

  What about the back/rear of Apple/cover for iPad Pro?

  http://www.Apple.com/shop/product/MK0D2ZM/A/iPad-Pro-silicone-case-charcoal-gray? FNODE = 9 a.

• Using the space map window for my project

  Dear Sir.

  I am Sundeep Neupane of the Nepal. I am currently the Bsc Hons in computer science from the Islington College affiliated with the London Metropolitan University. I am currently the research space map window, which has the ability to improve the security of the user's identity. The number of digital identities that individuals and organizations must manage increasing quickly, and good management of these identities is essential to ensure safety in the communities and markets online.

   

  My research is intended to focus on management identity associated Web mash up security by exploring and application design that takes in charge the approach centred on the user for the digital ID management. With the help of card space, many dangers, complications, trouble and uncertainty of today's online experiences can be a thing of the past. Widespread deployment of the identity metasystem has the potential to solve many of these issues, benefiting everyone and accelerating the growth of connectivity by making long term everyone online safer, more reliable and easier to use

  I have studied several newspaper, articles and whitepapers and traversed several official Microsoft page. Data was collected and the results of my research will be used to finish my final year project. So I might be able to use the space map window as part of my final year project. This study will be used for academic purposes and will be the cornerstone of my final year project.  This final year project is expected to publish a valid contribution academically and the Nepalese General.

  Do not hesitate to contact me

  Thank you very much

  Yours truly,

  Sundeep Neupane

   

  Hi Nathalie,.

  Please contact Microsoft Community.

  I understand that you want to use Windows Card Space for your final year project.

  I suggest you post the query on the MSDN forum, because we have experts working on these issues.

  You can check the link to post the same query on MSDN

  https://social.msdn.Microsoft.com/forums/en-us/home?Forum=windowscardspace&filter=AllTypes&sort=lastpostdesc

  For more information about the Windows card space, refer to the article below:

  http://msdn.Microsoft.com/en-us/library/aa480189.aspx

  Hope this helps, I wish you all the best for your final year project.

  Get back to us if you need further assistance for Windows.

• I use pci-6221, I need her to interface with thermocouple with voltage up to 5v

  I use as my pci-6221 or data acquisition card and card 8.2.this labview version gives the constant 10.5 volt signal in at the entrance to analog channel AO on pin 68 and 34. why it shows 10.5 although I did not connect any input.i use type k thermocouple and after signal conditioning with tl0804 I need it interface with AI 0.i channel unaware aware of off the road on the output pins this Card.i need to operate an electric rod that needs 24 volt DC.i give entry to the pins HAVE with variable dc power block after reaching the limit I set(eg:2v) it jumps instantly to 10.5 volts.

  You have your task to acquisition of data configured for the mode differential or asymmetric acquisition for the analog input?

  I don't understand your comment about to connect the pins WITH a DC power supply.  Why is that you connect a DC power supply to the analog input?

  Using an analog output or digital output to operate the electric rod?  I'll assume that you are looking for on/off control.  A digital output is not the voltage or current to drive something that big.  You may be able to find a relay for coil 5VDC.  Check current requirements.  With which you can have the relay to connect or disconnect a power supply of 24 VDC is the actuator.  Make sure you have a protection diode across the relay coil wired, so that the magnetic field of the coil does not damage the analog output of your card.

  Another possibility is to have the 5 VDC output transistor circuit switches the 24 VDC circuit.

• Multifunction with PCI 6221

  Hello

  I want to build a program with card PCI 6221 multifunction. In the program, it generates two analog signals to trigger a CCD camera and turn on an LED. Meanwhile, program to acquire an analog signal for a specific duration, and images that are acquired by the camera must be displayed. Above activities in signal acquisition and generation happens to a user the period (the time is currently 1500ms) and the whole process is repeated 40 times. A while-time loop thus serves to launch the signal generation and acquisition and acquisition of streaming images.

  Analog signal acquisition should start at a point that specifies the user and he should continue for a set period of time. This is currently done using a digital signal, created and use the port this signal as a trigger of break for AI System. However, all these signals generating and absorbing processors should be well synchronized and accurate at the time. An external clock is shared by all of the clocks used sampling in GOT it, AO and DO (CTR0). Literature, I realized that digital output cannot be triggered in the M-series card, so I use a system of internal release (as shown in the examples in LabView 2010 multi functions).

  Question: Is there a good way to start the analog and digital output using another output signal (lets assume a signal generated by CTR1) each cycle in order to maintain a highly synchronized system. (I don't like running the timed loop sample clock and continues to HAVE it and AO).

  The 6221 does not have a digital output timing engine, so you cannot trigger directly (or define a.) ReferenceClock, well it's not like that's what you want to do anyway).  You can directly use a sample from another source clock, then this clock signal is what needs to be triggered.

  I agree with software distribution is not a good idea - you can probably implement this with hardware timing instead, although I don't know how the camera fits into the equation.

  I assume you are using CTR0 as an output meter finish, task redeclenchables.  Then you use that signal as a sample for AO clock, and I?  This is probably what you want to do.  Finished Counter tasks require the use of two meters on the boards of the M series: DAQ, so you would not be able to use CTR1 indepdently of CTR 0 if you want to use the outputs of the redeclenchables counter finished.  You can always generate 0 if you do not want any voltage output during the acquisition.

  Best regards

• Impossible to test, check, calibrate the card (PCI-6221) DAQ with MAX

  Hello

  We bought a PCI-6221 DAQ card and we have installed. However, it seems that the device is not recognized. First of all, it appears as a device in the PXI system then that is a PXI system. Then, I don't have access to the 'properties', 'self test' and "to calibrate" menu. This issue should be linked to the first.

  I tried to remove the driver and install it again, but it didn't work, so I tried the update but it is the latest version. Is there a problem with the driver?

  I checked with Labview if it was possible to use it, but no devices were found by the DAQ assistant. We have the whole NI Developer Suite 2009.

  Thank you for your time

  Cedric THOMAS

  Hello

  It works! Great! Thank you very much for your help.

  However, does this mean that DAQmx 8.8 is having trouble with the PCI-6221 device? Or I made a mistake during installation (but I have followed the manual)...

  I even can I create a simulated device also. That I couldn't do before with MAX 4.5.

  Thank you

  Cedric

• How to detect the relay ON / OFF state with PCI 6221 analog input card

  In order to test if a relay is ON / OFF using my card PCI 6221 DAQ devices and ports of HAVE it.  I conect of the relay contacts to an AO giving 5 v and the other contact to an AI in order to detect the corrent.  In addition to a bridge is necessary to close the circuit betweeb the AO and AI.

  Shoud this bridge conect the MASS of two ports?

  The plan is: relay - AO (5 v) - AO GND - GND AI - AI0 -.

  This does not work and gives a continuous corrent to 10 V (I think it is a saturated)

  Hint, please?

  The simplest connection is:

  • One side of the relay contact: + 5V PCI 6221
  
  
  • Other side of the relay contact: all DI PCI - 6221

  But I would add a DI (for example 10 k) resistance to GND of the PCI 6221. This will outline the entrance to GND when the relay contact is open.

• Triggering of a task by using PFI on a Board of PCI-6221 (37-pin)

  Hello everyone,

  I need material triggered acquisition, use of the PCI-6221 (37-pin) card board. In LabView, I used the simple program (see attachment): in a data acquisition assistant, the start of the task is set to 7 PFI. However, to make a PFI7 pulse does not trig acquisition and I get timeout error.

  When I test the same, but using the standard PCI - 6221 Council (i.e. 68 pins), everything works fine.

  I have to do extra to PFI configuration when I use the Council 37 pins? (Note: the same PIN is assigned to the PFI7 and digital line P1.7).

  Thank you.

  Jiri

  P.S.: I use LabView 8.0, OR-DAQmx 8.7.1 and Windows XP Professional.

  Problem was curious, but it is solved now:

  -OR-DAQmx wasn't actually 8.7.1 8.0.0; I have updated (but it still didn't work)

  -J' replaced the virtual channels by the corresponding physical channels; He began working

  -J' replaced return physical virtual channels, and it works always :-)

  It seems that there is a bug somewhere in OR-DAQ.

  Jiri

• PCI-6221 PFI0 start trigger is stray signals reading

  We have a card PCI-6221 attached to a SCB-68 in a control console, we've made dozens of times. However, this time, we will have problems with the beginning of PFI0 relaxation. Operation of the actuators 24 v remote (cable to DAQ card but operated through manual switches) triggers the beginning. We tried a shielded cable and everything is grounded. There is no parasitic voltage coming into the SCB-68 box. We sent also all the other analog I/o box. It's just the son of trigger start going. What is unusual, is that if we give a thread to the PFI0 (Terminal 11) who does not finish anywhere, we just hold in the air, do not cross any other thread, running our actuator valves still initiates the trigger. If we remove the wire, it does not raise. It's almost as if she receives wireless signals. But how wireless receives + 5V to trigger I don't understand. We also tried to use a spare PCI-6221, same known issue work. When you view the PFI0 in MAX, flipping the switch actuator will cause the counter generate 400 + charges. A normal release with our power switch usually generate 10-20-count indictment. We are really puzzled. Thanks for any help!

  Don't have not an answer to the first question, will have to research.

  THA Cabinet is wired the same, the only difference is that we added a transformer so that the system can run on the seas, but has not actually been hooked again, sitting in the Cabinet.

  Yes, we used a cable leading to one end. We tried the ground at both ends, the same results. I also waved to the cable in the air and a people in the head with it, it made me feel better.

  Don't think on the unused entries in the Earth. Personally, I think that the PFI0 is to be triggered with less than the + 5V, the scope is the very low voltage reading.

  But I found a solution. I mentioned in the original post that trigger actuator, just once, causing 400 + edge detections/counts when viewing in MAX. It is a large number of charges in such a short time. So I programmed in a digital filter using a min pulse width. ".". 00256. Eliminating the 400 + short bursts of any signal. I used the example of filtering VI in this knowledge base article:

  http://digital.NI.com/public.nsf/3efedde4322fef19862567740067f3cc/9ece7dbe7df338bd86256f8600734a41?O...

  For those who have similar problems, there is no physical change, just incorperate of wiring of the filter.

• PCI 6221 generating an output voltage

  Hi all

  I'm trying to use a card PCI-6221 to provide a voltage of 5V analogue output and use it HAVE read the returned signal using labview. Anyone know how I can do this using this hardware device?

  Thank you

  Hi lrving9,

  First you need the DAQmx driver, here is the link for you to install the latest version.

  NOR-DAQmx 15.0.1
  http://www.NI.com/download/NI-DAQmx-15.0.1/5353/en/

  If you already have it, so go ahead and take a look at this example:

  It shows you how an analog DC output voltage.

  Community: Output analog voltage constant
  https://decibel.NI.com/content/docs/doc-18631

  So you have a block of connection to connect the signals?

  If you do, then you can simply create a task to read a continuous voltage entry, as in this example

  Community: - Input voltage
  https://decibel.NI.com/content/docs/doc-25105

  If you do not have a connection block and have no way to connect the OD to HAVE, then you can read the inner channel of AO, as shown in this link (there is an example at the bottom):

  It is Possible to read the value of the digital or analog output channels?
  http://digital.NI.com/public.nsf/allkb/CB86B3B174763C3E86256FFD007A2511

  Also when you install the driver a few examples are installed as well, this shows you how to get them:

  Where are the examples of NOR-DAQmx installed?
  http://digital.NI.com/public.nsf/allkb/E3BAF6FC4017960B8625755A00525D37

  Kind regards

  Caroline

• A motor with encoder closed loop. Can I connect an other encoder without using an engine and double regulation?

  A motor with encoder closed loop.  Can I connect an other encoder without using an engine?

  Thanks to LabVIEW with a PCI-7332 and an UMI7774 interface to control a stepper motor with encoder feedback.  System is configured in closed loop for the control mode.  You will need to add a different encoder to the system without attaching a motor.  I'm validation of encoders to each other.  Is this possible?  Should what kind of latency I expect?  I have attached a simple vi.  Need to buy one before the answer.

  Thank you

  You can just plug the second encoder to the second slot without an engine it. Then you can use reading encoder Position.flx to read its position or do whatever you want with it. What about latency times, how are you trying to go under?