Similar Questions

• NEITHER 9234 with quasi static analog voltage

  Hello

  I have a NI 9234 (4 channels + / IEPE 24-bit 5V) attached to a chassis cRIO module. This module is ideal for accelerometers and microphones where the tension is in constant evolution (ie; measures of variation rates).

  I also have a module OR 9237 (4 channels 24-bit full-bridge module analog input) attached to the same cRIO. This module is ideal for measure variable voltages of strain gauges (quasi static and dynamic loads).

  The attached graph shows the two channels, collected synchronously, but as you can see the (red trace) cell breaks down (as it should), but then drifts back to zero on its own, when in fact it should remain low just like the extensometer is beam. After all, the two sensors are physically secured.

  Q1: Would that have something to do with AC/DC module 9234 internal coupling?

  Q2: Is it really possible to collect "quasi static" ongoing tensions by using a NI 9234 module?

  No explanation as to why this occurs, or if there is a way to remedy this would be appreciated.

  Kind regards

  Andreas

  Coupling AC/DC must do a lot with your question. In mode AC voltages static will be fitered outside and the 9234 measure indeed only change voltages. In DC mode, the voltage goes directly to the AD converter and you can also detect static tensions.

  A minute of Googling gave me the answer, this load cell electric piezo can measure dynamic changes, as any charge will escape the path the lowest resistance and the signal will go to zero after a certain time. I guess the other device you were using higher internal resistance (which is relatively low on the 9234), so it takes more time to what he flees, but he also took on the picture you attached your second try.

  Here you can find more example under the title

  "WHY ONLY DYNAMIC FORCE CAN BE MEASURED WITH SENSORS OF POWER PIEZOELECTRIC"

  http://www.PCB.com/techsupport/tech_force

  Andreas Jost

  Technical sales engineer

  National Instruments

• NEITHER 9234

  Maximum sampling frequency for the NI 9234 is given as 51.2 kech. / s in documentation NOR. This means that for a House to measure collection measures of 3 different instruments rate is 51.2 kiloSample/second/3 = 17 kiloSample/second. It's 17 000 samples/second. The number seems very high. Could someone please confirm if this is correct?

  As noted by Jeff, a 9234, one ADC per channel.  So if you're sampling 3 channel 51.2 kech. / s, then you get 153,6 kech. / s.  To 3 bytes per sample, this means you broadcast 460.8 Kbps.  It is well within the ethernet or USB, specification according to the frame that you use.  I hope this helps.

  Thank you

  Sean

• NEITHER 9234 fifo dma file samples

  Hello

  I have a problem when sampling using the cRIO and map AI NI 9234, currently configured to sample a signal of Hz 1 k of the side signal generator FPGA goes directly to the DMA which is (1023 elements in size) on the side of the host (size of the element 1 million). With the help of the producer, architecture of consumption and saving on PDM on the consumer side. The producer has read dma fifo. Please see pictures any help would be great!

  If I plot the data, I get this:

  

  Here is my code FPGA:

  

  Here is my version of the host:

  

  Hello

  The problem has been resolved on this post.

  Thank you

• 8640A Kistler and NEITHER 9234

  I have probably a very simple question.

  Is it possible to perform the Kistler PiezoBeam accelerometer 8640A 5 http://www.kistler.com/mediaaccess/8640A_BP__000-842d-03.11.pdf

  to the NI 9234.

  If not, what materials would you use to operate up to 16 8640A 5?

  Thank you!

  You can and would also be able to use TEDS

  http://sine.NI.com/NIPs/CDs/view/p/lang/en/NID/208802

• NEITHER 9234: sampling rate: cRIO, FPGA

  For the NI 9234 module, before Panel block diagram of my my cRIO FPGA code is as below.

  The sampling rate (speed) is selectable between certain values as shown below.

  You have an idea how I can do the sample with a lower rate that is smaller than the option of character (1.652 ksps / s)?

  

  

  

  Hi Cashany,

  Take a look at this link. Page 16 describes the limitation that you run in. The main time base are divided essentially only toward down to some data because of the way the camera rates physically handles analog and digital filitering. So it's not really a way to divide the beyond that point.

• Impossible to read 4 channels with the or 9234

  Hey, I'm tasting 4 simultaneous channels to 51.2 kech / s rate for each channel with the NI 9234 module.
  I use a callback function to read from the buffer.
  I am accept to get to playback 4 channels of 51.2 k * 4 = 204.8 k s/s.
  and I still recive data 51.2 kech / s.

  Need help, I don't know what's wrong with my code.

  I enclose my hope of code it will help...

  Thank you!

  My installation information:
  Material: NEITHER 9234
  Version of Windows: XP
  Language: Qt (C++)

  Hey simon27,

  When you have installed DAQmx, did you also install text code support? There are several examples that should have installed with DAQmx which is very helpful in getting you started. "" "" "They can be found by going to your Start menu, then all programs" National Instruments "NOR-DAQ" NOR-DAQ "support textual Code ' ANSI C examples.

  In case you do not installed the supported text based code, I have attached two examples which I think would be more useful to you. Try to run these examples and see if you get the same errors.

  -Nathan H

• Configuration of the basic Source of time to master for the 9234

  I have several cDAQ modules I use to collect data.  I use vi to Write can Express to save data to a file of PDM.

  When you examine the recorded data files, the measured data from NI 9215 provide pleasant timestamps to match how the DAQmx task has been set up--delaying the sampling frequency of 1000 with a 1 ms in the While loop.  However, although in the same vi - different tasks, but the same while loop - horodateurs of the NI 9234 do not correspond to the task of DAQmx implemented - sampling frequency of 1000 with a 1ms delay. After reading the material provided with the NI 9234, I found that maybe the machine clean master Timebase Source. There were documents that says he can be configured to be originally of Timebase of Master for the other modules:

  Configuration of the basic Source of time of the master for the NI 9234 (Interface FPGA)

  It is desirable to have the timestamps for data measured across all modules to match. We do not have the FPGA Module for LabVIEW. Is there a method in LabVIEW for all modules use the same master time base Source?  I assumed that because all the data collection has place in the same while loop by using the time delay of 1 ms it was forced through the code. This hypothesis seems incorrect from my review of the PDM data files.

  The NI 9204 provides a trigger only.

  Software:

  Windows 7

  LabVIEW 2010 SP1

  Material:

  CDAQ-9174 chassis

  Slot 1: NEITHER 9204

  Slot 2: NEITHER 9215

  Slot 3: NEITHER 9234

  Slot 4; Vacuum

  Hi MgDAQ,

  An important concept to note is that the 9234 uses a delta-sigma converter and a clock of oversampling to read analog data. There is an inherent delay of entry due to analog and digital filtering built-in. Since the 9215 has a lower resolution there will be a lag the 9234 and 9215 finished. I've included some resources below:

  What are the for the NI 9233, NI 9234, and NI 9237 valid sampling rates? : http://digital.ni.com/public.nsf/allkb/593CC07F76B1405A862570DE005F6836?OpenDocument

  
  

  Synchronization of DSA, S and X series devices with a NEITHER-DAQmx single task series: http://digital.ni.com/public.nsf/websearch/78E44565FD87E7D686257108007F94F8?OpenDocument

  
  

  Synchronization with NOR-DAQmx of acquiring dynamic signals (DSA) products:http://digital.ni.com/public.nsf/allkb/A133ED27DF9BCC5986256F2E004BA342?OpenDocument

  Have you tried to put two modules in the same spot? Alternatively, you can export the sample clock 9234 and tasks installation separately.

  Best,

  CARISA

• compactRio 9074 y or 9234

  Hola, estoy instalando compactRio 9074, pero al momento estoy tried el or 9234 not me appears peripheral opcion en the MAX pantalla como.

  No to TR is instalar has make solo o con is inserta in el compactRio, igual al initiates would call desde labview pero me marca DEVICE NO

  Hola Sisi.

  Help to you recommend concerned el LabVIEW example > find examples... NEITHER 9234 get started Scan Mode.

  Este proyecto are you crea UN VI en RT para medir acelerometros...

  Lo puedes con este combine examplepara el datos guardado

  Sea util you espero

  Saludos

• The error ether channel

  Hello

  Please find my ether below channel config

  Interface Port - Channel 1

  switchport trunk allowed vlan 11-14

  switchport mode trunk

  no ip address

  ----------------------------------------

  interface FastEthernet0/2

  switchport mode trunk

  no ip address

  channel-group mode 1 on

  ----------------------------------

  interface FastEthernet0/9

  switchport mode trunk

  no ip address

  channel-group mode 1 on

  I am not able to see the port channel up

  out put is pasted below

  ---------------------

  SH s etherchannel

  Flags: D - low P - port-channel

  I have - autonomous s - suspended

  H Eve (LACP only)

  R - Layer 3 S - Layer2

  u - unfit to tied selling

  U - running f - cannot allocate an aggregator

  d default port

  Number of channels: 1

  Number of aggregators: 1

  Protocol for the Port-Channel port group

  ------+-------------+-----------+-----------------------------------------------

  1 Po1 (SD) - Fa0 Fa0/2 (s) / 9 (s)

  SH etherchannel brie

  List of channel-group:

  -----------------------

  Group: 1

  ----------

  Group status = L2

  Ports: 2 Maxports = 8

  Port-channel: 1 Port Max-channels = 1

  Protocol: -.

  A01-KG-DMZ-1 #sh ISE

  A01-KG-DMZ-1 #sh ISE the

  A01-KG-DMZ-1 #sh etherchannel d

  List of channel-group:

  -----------------------

  Group: 1

  ----------

  Group status = L2

  Ports: 2 Maxports = 8

  Port-channel: 1 Port Max-channels = 1

  Protocol: -.

  Ports in the Group:

  -------------------

  Port: Fa0/2

  ------------

  Port State = Cnt - bndl suspends Up does not-in-Bndl

  Group of channels = 1 Mode = we / FEC Gcchange = -

  Port channel = null GC = - port-channel Pseudo = Po1

  Port index = 0 load = 0 x 00 Protocol =-

  Age of the port in the current state: 00d: 05 h: 56 m: 10s

  Probable reason: the mask of VLAN is different

  Port: Fa0/9

  Port State = Cnt - bndl suspends Up does not-in-Bndl

  Group of channels = 1 Mode = we / FEC Gcchange = -

  Port channel = null GC = - port-channel Pseudo = Po1

  Port index = 0 load = 0 x 00 Protocol =-

  Age of the port in the current state: 00d: 05 h: 56 m: 14s

  Probable reason: the mask of VLAN is different

  Port-channels of the Group:

  ----------------------

  Port-channel: Po1

  ------------

  Age of the Port-Channel = 00d: 03 h: 15:00

  Logical slot/port = 1/0 number of ports = 0

  GC = 0 x 00000000 HotStandBy port = null

  State of Port = Port-Channel Ag-non-Inuse

  Protocol =-

  Could one help to fix this isssue

  Regd

  Ilyas

  Ilyas,

  This is what I'm talking about.

  Them VLAN Trunking on the port-channel interface and the Member must match interfaces. If there is a mismatch, the status of the interfaces will be down

  Toshi

• Could not open the PDM file

  Hi, I'm using TDMS format for my project.

  I succedd to connect all the data into TDMS files using the

  DAQmxConfigureLogging(taskHandle, logFile.toAscii().constData() ,DAQmx_Val_LogAndRead,"GroupName",DAQmx_Val_OpenOrCreate)
  

  Now my problem is that when I'm reading the TDMS file I can't open it.

  My reading code is (from the example of TDMStesing):

       unsigned int
  
          length;
          int     ddcError = 0;
          DDCFileHandle   file = 0;
          char            *property = 0;
  
          // Read file name
  
          ddcChk (DDC_OpenFileEx (FILE_PATH, "TDMS", 1, &file));
          ddcChk (DDC_GetFileStringPropertyLength (file, DDC_FILE_NAME, &length));
          nullChk (property = (char*)malloc (length + 1));
          ddcChk (DDC_GetFileProperty (file, DDC_FILE_NAME, property, length + 1));
  
          printf ("File name property: %s\n", property);
          free (property);
          property = 0;
  
          // Read file description, if present
          if (DDC_GetFileStringPropertyLength (file, DDC_FILE_DESCRIPTION, &length) >= 0)
                  {
                  nullChk (property = (char*)malloc (length + 1));
                  ddcChk (DDC_GetFileProperty (file, DDC_FILE_DESCRIPTION, property, length + 1));
  
                  printf ("File description property: %s\n", property);
                  free (property);
                  property = 0;
                  }
  
          // Read the channel groups
          ddcChk (ReadGroups (file));
  
  Error:
          if (property)
                  free (property);
          if (file)
                  DDC_CloseFile (file);
          return ddcError;
  

  When I debug the code I got the error code of-6204 to the DDC_OpenFileEx function

  Error details http://zone.ni.com/reference/en-XX/help/370051K-01/cvi/cvidiademlibraryerrors/

  -6204

  DDC_UnexpectedError

  An unexpected error has occurred in the library.

  Need help...

  My configuration:

  Material: NEITHER 9234
  NOR-Daqmx: device driver 9.4.0f5
  Version of Windows: XP (sp3)
  Language: Qt (C++)

  
  

• CAN 985 x and cRIO 9012

  I have a cRIO-9012 controller and chassis 9101.  I can't perform the basic examples.  My question revolves around game upward.

  Background: I have 8.6 with time real/fpga, NIRIO 3.0, NICAN2.6, as well as the 985 x software 1.3.2.  I loaded up the most recent 2008 of NIRIO3.0.0August on my RIO, however running example base reception/emission FPGAs cause time-out errors.  I added another module (9472) just to make sure I can turn some of the visible lights.  However as soon as my typing the CAN node loop this loop freezes all my lights are flashing away.

  This morning I thought that to run the example, channel CAN Receive.  I've loaded and sent the channel config in RIO.  I try to deploy the host VI and receive the following:

  Deployment RIO0 (the goal settings successfully deployed)
  Deployment ncConfigCANNet.vi
  Cannot download ncConfigCANNet.vi

  LabVIEW: Unable to load the shared library nican. *: ncConfig:C on the target RT device.

  Here's where I'm confused.  I thought that the VX works system does not support the CAN.  I see not everything CAN be supported under the NIRIO3.0.0August 2008 software, but this error of downloading indicates miss me a driver (or else...)  Someone had a similar problem, I'm missing the software on my controller?  Any suggestion is welcome.

  Thank you.

  I have found a new 9853, we received last month.  I could put in the 4 Groove and using my reception and transmit programs successfully.  I could watch the heart CAN, in addition to performing a loop of CAN1 to CAN0 test.

  The original 9853 headed on an RMA for NEITHER.  This module is apparently 1 year old.

• Why is there no user interface for moving the cache locations/profile?

  OK, so it took me a long time to find how to move the location of the cache and the reason is that it is done by an entry that does not exist originally, so a user need to know the channel config even magically set it.
  (this is browser.cache.disk.parent_directory for those in the same waters as me) and it still did not move the location of the profile...
  To change your profile location? The doc only that talks on this subject here:
  http://KB.mozillazine.org/Moving_your_profile_folder
  and it does not work so well for me (i.e. all) but why have I not copy and change things? It is created automatically the first time you start so FF cannot use the same method to create a new profile in an empty space?

  And my real question: is there a valid reason, that there is no element of the user interface to set the location of the profile cache directories?

  There never was a user interface for these parameters - Mozilla is "stingy" about adding prefs that will be only once required by the installation of the user interface. Also, I assume that the developers are convinced that a power user who thinks that even on the displacement of the cache will be searching for instructions on how to do it. (BTW, when you move the cache profile is moved to the folder path profile, its origin "local settings" folder - thus it is automatically moved out of APP DATA.) You can still use this pref to put the cache exactly where you want. I use a small partition for the TEMPORARY files and the cache of Firefox, so they don't one of my biggest readers logics frag.)

  Regarding the difficulties with a profile in motion, developers have threatened to remove Firefox profiles altogether for the last 3 years or 4 and WONTFIX had no Bug filed all improve or add new features to the Profile Manager. This will probably happen this year some time.

  Between you and me, there is a new Profile Manager application just went Beta, which will probably "be released" just as the existing profile manager is extracted from Firefox. It is very schweet and is always at the point where the developers are in response to reports of bugs on features to include and adding the items that are important. I have tabled a minor Bug on the characters allowed in a profile name, which was fixed in 3 or 4 weeks.
  
  https://developer.Mozilla.org/en/Profile_Manager
  
  https://wiki.Mozilla.org/Auto-Tools/projects/ProfileManager
  
  http://FTP.Mozilla.org/pub/mozilla.org/utilities/ProfileManager/1.0_beta1/
  
  You must have Windows Visual C++ 2010 redistributable installed for the application of the Profile Manager XUL Runner to work right now. I hope that this will change very soon, and all the necessary files will be included in the Zip package.

• Memory Find twin

  I have a question about ram. I have a laptop with 1x2gb ram in single channel, so I would add ram 2x2gb my laptop in the "Dual channel" ' and my problem is "what brand should I buy which can happen Dual Channel'..."

  Dual channel requires 2 identical or at least the same size and speed modules

  Perhaps some of these images can help

  http://prntscr.com/4dd4ml

  http://prntscr.com/4dd4uw

  I thank you and have a great weekend

  Hello

  Name of the model, model number, operating system, 32 or 64-bit?

  If your system (most important) can support dual channel config & depending on your module memory also support - they usually go,

  You can go before purchase
  Memory SDRAM SODIMM 2 GB DDR3 1600 MHz PC3-12800

  Same brand i.e. ADATA would be ideal.

  I guess that your laptop has two slots & it is expandable to 4 GB.

  Kind regards

• How to load under vi in Panel at the same location using base LV 8.6

  I have several screens to display on the button clicks so I want to load the sub VI Panel in the same place using the package base of LV 8.6.I could find solutions using Insert VI, but which is available in full development Package.Is it in any other way to do it.

  Thank you it worked... but I have a question, I have attached two SCREWS get channel config is the VI I want to display in the Panel of sup, but scrollbars donot work