Problema con el DAQmxBase Create Channel

Similar Questions

• DAQmx - create channels to channel-not found

  Hello

  I'm new to labview. So maybe my question is simple...

  I want to generate a signal. That's why I use the DAQmx-create channel.vi. I have, I've created a control to selected the channel, where the signal is generated. But no channels are found.

  I use 5412 PXI and my camera is visible in MAX. So I don't know what the problem is. Can someone help me?

  Thank you

  Ratta

  The 5412 is an arbitrary signal generator. It does not use DAQmx. It uses NEITHER-FGEN.

• DAQmx (Version 9.1) Create Channel for accelerometer will NOT convert m/s ^ 2

  I use DAQmx create channels for accelerometer to get results in the unit (m/s ^ 2)

  It worked until DAQmx Version 8.9.

  Now, I tested it with DAQmxVersion 9.1 and the results are in g (not converted to m/s ^ 2!)

  I use wth .vi DAQmx Create Channel (I-acceleration-accelerometer) entries

  units = m/s ^ 2

  sensitivity units = V/g (there is no sensitivity unit V /(m/s^2) available)

  sensitivity sensitivity value in V/g =

  I have read the data with

  . VI DAQmx reading (analog 2D DBL NChan NSamp)

  In DAQmx<= 8.9="" the="" double="" numbers="" are ="" correct="" converted="" to="">

  but in DAQmx 9.1 not (values are in g and low by 9.81)

  My solution is the following change

  units = g

  sensitivity units = V/g

  sensitivity = sensitivity value in V /(m/s^2)

  Then the double numbers are not converted, but m/s ^ 2.

  And this work in all versions of DAQmx.

  The problem is:

  An older program that uses the settings of the first and tested with DAQmx<=8.9 will="" get="" wrong="" measurement="" result="" with="" daqmx="" 9.1="" and="" no="" error="">

  Peter

  Hi Peter,.

  I'm not in my office at the moment and I can't try it by myself, I have forwarded your request to one of my colleagues, I hope he will contact you soon.

  Sorry for the delay,

  Tobias

  The language of MAX settings depend on the regional settings of your Windows operating system. See the following page:

  http://digital.NI.com/public.nsf/allkb/9893C1767C93D20E86256F49001CDA92

  Kind regards

  Tobias

• Possible bug: DAQmx create channel w/o specified in task

  The VI DAQmx 'DAQmx create channel (I-voltage-Basic) .vi' requires no task should be connected, and claims his detailed help "" task in specifies the task to add virtual channels, this VI creates. "." If you do not specify a task, NOR-DAQmx creates a task for you and adds the virtual channels that this VI creates to this task. »

  My recent experience, I think that there is a problem with this feature. If no job is specified, sometimes this VI will create a new task without problems, but other times it will overwrite an existing task, causing errors later when you try to reference the crushed tasks.

  In my code, I have 7 tasks, two digital (DIO), an analog to (HAVE) and four analog out (AO). One of the AO and the tasks of the AI does not use a task VI before the channel VI create. I recently added this AO task without creating a new task manually, based on the reproduction of legacy code for the channel of AI that also not create a new task. With two spots missing the task of creating VI, I found it fairly common (20% of the tracks) a further task would be crushed, causing errors when the task has been used, either be the wrong type IO, a wrong number of channels, etc. I think I saw this error until I added the second task without creating a task, but it's so rare that he didn't pay much mind, and I would just restart my VI. Now that was occurring more often, I've been tracking it. Simply by adding 'DAQmx create Task.vi' before calling Create Channel and the new task of wiring in the task, the problem seems fixed.

  It is easy to add to create a task to avoid this problem, but it seems to me that the detailed help for Create Channel indicates that it is an unnecessary step. Thank you.

  Hi MDI - AJT.

  This looks like a problem with the code you posted, by suggestion of Norbert. When you create the task handles, you should do this only at the beginning of your code outside the loop, otherwise you will create errors that you overwrite memory locations at each iteration. If you move your virtual channel calls create outside of your loops, and does not call the handle of the task to be authorized beforehand (and implicitly create the task rather than explicitly), then this behavior must stop.

  I recommend to try this with a single line, and not 7 DAQmx calls and follow the DAQmx architecture as seen in the examples under 'Help' "'find examples' and see if this behavior persists. Later architecture, I was not able to re-create this behavior.

  BeenCoughin

• Problema con en Vcenter Converter Vsphere 4.1

  Buenas tardes foro:

  Tras ser seguidor este foro asiduo me he did a participar in con el the cuestion of siguoente:

  Tengo una pequeña infrastructure montada con back servidores Esxi4.1 y una cabina iSCSI, esta esta based on vSphere 4.1 Essentilas more instalacion y hasta ahora todo worked perfectly. Put problemas han started try realize PSV conversiones al con el Vcenter Converter.

  MI servidor Vcenter donde esta el esta in una VM mind en propia infrastructure converter wont y cuando beginning el proceso Migración P2V of any physical todo comienza well, continuo con equipo el Assistant, is instala officer converter Máquina fisica en el y cuando comienza importación propiamente dicha host chosen al migrar y tras crearse the VM in el comienza el proceso y al 1% to para , da error y borra VM created.

  He visualizado los that connect already el converter (los transcontine in formato .zip) pero no veo nada por lo me gustaria saber (supongo if) alguien este foro you can escahrles if a vistazo y comentarme than you can estar fallando.

  The rest of the infrastructure fuciona correctamente y por ultimo qe decir the VM in the what instalalo Vcenter are Nations United W2008 Standard x 64.

  Gracias por todo y saludos.

  Hola peti_opc:

  Échale a vistazo al ultimo hilo you puse. Revisando los newspapers he comprobado than tienes problemas con los certificados SSL. Como you dijo, ojea el hilo earlier than you have a user that explica como solucionarlo.

  A greeting.

  --------

  José Luis Gómez Ferrer de founder Couto of PiPo e2H Blog: http://blog.e2h.net

  If upon that esta otra respuesta utility fue, por favor any o da el voto. Gracias.

  If you find this or any other useful answer, please consider awarding points. Thank you.

  

• Error-200431 occurred at .vi DAQmx Create Channel (I-acceleration-accelerometer)

  Hello

  I tried to use DAQmx Create Channel to accelerometer and yet it responds with error (see below). When I use max OR to measure the accelerometer (I-acceleration-accelerometer), there is no error, and I see that acceloremeter works.

  OR PXI-1042 and I use OR-4462 card to measure vibration vith acceloremeter.
  

  Error-200431 occurred at DAQmx Virtual Channel Create

  Possible reasons:

  Physical channel selected does not support the type of measure required by the virtual channel you create.

  Create a channel to a type of measure that is supported by the physical channel, or select a physical channel that supports the type of measure.

  Property: I. MeasType
  Requested value:
  You can select: sound pressure, voltage: Microphone, accelerometer, Position: Eddy Current proximity probe, Force sensor: IEPE, speed sensor: IEPE

  Task name: _unnamedTask<104>

  Hi serdaryilmaz,

  I'm not sure why the accelerometer mode does not work, but it works very well in normal mode - it maybe has to do with the accelerometer, you?  Whatever it is, if it works with the voltage mode, I am happy that we found a way to make it work.  Is this an acceptable work around you?

• Problema con el polar field indicator

  Hola a tod@s,

  Tengo a problema con el polar route VI indicator, he estado intentado dibujar UN fasor (vector) este empleando VI, he configurado su tamano is colores pero cuando ejecuto el VI none as black me graphics mi fasor (vector), para verificar what he estado introduciendo datos he graficado training in waveform una Onda y aqui obtengo el resultado esperado (Una funcion con seno amplitude fase y frecuencia deseada) , help me could alguien con el problema del indicator polar. I am using LabView 7.1 8.5 y y en versiones both me sucede lo mismo.

  Editor una imagen del diagrama of blocking the graphical grafica y.

  Gracias

  Hello

  Aqui ha UN UN convertacion pictura.  Not soy seguro that're correcto, LEDs 'dt' al anugulo.  Pero, este callida hasta solution, convert el hondo.

  Desculpa, no tengo LabVIEW 7 here.  No will can be extracted using of este, pero the pictura is mostra as quero decir lo.  Buena suerte.

  Los resultos son estranyo (no tengo 'July' , I think it is the process of converting, no correcto are.)

  

• Error-50303 occurred at ELVISmx_DAQmx create channel %2528AI-Resistance%2529.vi%253A1

  Hello

  I used the myDaq in my electronic class earlier today and the suspect, I have damaged the myDaq. I had an external power supply connected to my circuit on a Protoboard - the circuit was not directly related to +/-bus on the protoboard, but the Council itself was hung in the myDaq.

  I noticed this caveat statement myDaq Manual:

  Power supplies
  Caveat! Do not mix the power nor myDAQ with power of external power sources.
  When you use an external power supply, remove all connections to the power supply terminals on
  NEITHER myDAQ.

  Since then, I get the following error message when I try to take my multimeter (NI Elvismx) readings:

  Error-50303 occurred at ELVISmx_DAQmx create channel %2528AI-Resistance%2529.vi%253A1

   

  This message means that I damaged the myDaq? Could I have generated too much current with voltage circuit / applied and brought to save in the myDaq? If so, it would damage the myDaq or are there internal safeguards in order to protect the device (i.e. recognizing when internal resistance reduction) and trigger an error code (i.e. could reset you HAVE resistance)?

  I am new in the field of electronics, so please forgive me for any obvious incorrect statement above!

  Also, I went then to download the troubleshooter of myDaq - I managed to unpack the file, but it would not be completed installation (i.e. the 'next' button is grayed out on the summary screen, the only options to the choices were 'save' and 'Cancel').

  Thanks in advance for any guidance/direction you can give me!

  Sincerely,

  Melissa

  Found a miracle solution!

  Under the tools NI MAX button, there is an option to select "reset Configuration data".

  After selecting this, he reset the Configurations OR and restarted my computer. I noticed that when I reopened NI MAX, I had more options to choose when I click on the myDaq device (i.e. before I could only choose 'Save' and 'Refresh'... now I have more options including a reset, self-test function, test panels, etc.).

  I was able to use my features NI Elvis DMM and no longer see the error message (just did a simple test with a resistance).

  See you soon!

  -Melissa

• generation of functions to create channels of AO

  I'm trying out a sinusoidal signal through a USB-6211 using this task Create Channel. I can't find a single example of using this function once the task has been created. All the 17 examples provided by OR use the adjustment of the tension of the AO create and must use an external function generator. Examples exist on how to use this thing? List of specifications of USB - 6211 BTW ' AO waveform modes:

  "Non-periodic waveform.

  "Periodic regeneration mode waveform of FIFO aboard"

  'Regeneration of periodic signals of buffer host, including the dynamic update'

  I don't know what the previous alternatives that seem to indicate that it is capable of producing waveforms, unlike other queries that came during my search for previous question.

  Hi walter donovan,.

  Only two devices support .vi DAQmx Create Channel (AO-FuncGen): NI ELVIS II and NI ELVIS II +, which have a function dedicated to the hardware level generator. You cannot use the channel type of the generation of AO functions with any other device. Sorry for the confusion.

  Brad

• Buonasera, ho a hp Pavilion g6 laptop e da some giorno ho problemi con scheda wireless.

  Buonasera, ho a hp Pavilion g6 laptop e da some giorno ho problemi con scheda wireless. in apparenza funziona, master in realta' non trova outdo any. con a pc powerful trovo reti meno altro e mi connect senza problemi. Ho reinstallato pilot he nessun risultato my. diagnostica mi dice che e' tutto a posto. It seems aver potenza personally he marked. Come posso risolvere?

  Hello

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  Please select your language in the drop-down list at the bottom of the page to post your question in the language of your choice. The forum in which you've posted is for English only. If you can't find the desired language, support for additional international sites options are by following the link below: 

  Please, select su idioma in her lista desplegable anterior to send you in el idioma of choice su pregunta. El foro Québec ha published're para frances only. If usted no encuentra el idioma no desee por encima of las options para support otros destinos international themselves can find following el siguiente enlace:
  

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  Tengo problemas con mi equipo no me already access mi red inalámbrica me pide activate the firewall of windows comohago by activarla

  Hello

  Sorry, this forum is in English only.

  Please select the language icon at the bottom of this page English and select your native language from the popup list to view the forums in the language of your choice.

  If you can't find the language of your choice, support for international sites additional options can be found by clicking on the following link:

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  Concerning

• Problemas con werconcpl

  Buenos dias a tod@s espero me can cooperate.

  Como dije en the pregunta is me met no problema con an archivo llamado werconcpl cada vez as empiezo me pide lo mismo y en momentos estoy etos don't sin sonido y sistema no encuentra el problema is he intentado muchas things as for example: copy el archivo, revisar el sistema con programas, descargar archivos dll different para remediar esto y nada ha well , espero me can cooperate.
  MUCHAS gracias por su colaboracion

  Spanish:

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  http://support.Microsoft.com/common/international.aspx

  Gracias

• Tengo problemas con a juego

  of mi problema con el juego PROEVOLUTION SOCER 2011 ARE LO he COMPRADO BACK ORIGINAL VECES Y TRAE EL MISMO DEFECTO.   DESPUES OF SEVERAL WEEKS OF JUEGO SE IS SIN FUNCION NONE, THINKS THAT ERA EL CD Y POR ESO COMPRE OTRO

  Please select your language from the drop-down menu above to post your question in the language of your choice. The forum in which you've posted is for English only. If you can't find your language above, support for additional international sites options are by following the link below:

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  Gracias

• Tengo problema con UN programa chkdsk

  Tengo problema con UN programa chkdsk.

  Hi Lucas

  This forum is for questions MSE. Your question seems to imply a chkdsk problem.

  We speak only English here, but there is a Forum for answers to performance and Maintenance support in Spanish at: http://answers.microsoft.com/es-es/windows/forum/performance?page=1&tab=all&tm=1300700638376 where you can get expert services in your language.  Upward, remember next to the Windows version to use the drop down menu to choose your version of Windows so that you get the correct forum.

  Good luck and best wishes.

  *****************************************************

  Hola Lucas

  Este foro're para temas MSE. Known problema parece implicar a chkdsk problem.

  Hablamos ingles aqui, pero hay solo a creative foro para performance y mantenimiento soporte en Español: http://answers.microsoft.com/es-es/windows/forum/performance?page=1&tab=all&tm=1300700638376 donde is you can get help from experts in su propio idioma. Cima cerca, asegúrese junto a Windows version para use el menu desplegable para seleccionar version of Windows for more al Foro correcto.

  Buena suerte put mejores deseos.