synchronize 2 cDAQ-9215 modules on the cDAQ-9174

Similar Questions

• I can't connect my 9215 module to the circuit

  
  

  Lol there is an opening under the screw and you loosen a screw, you will see a clamp like case open. You insert one bare end of wire in there and then tighten the screw. Give a tug on the wire to make sure it's safe.

• Synchronize the pci-6254 and cDAQ-9174

  Dear all,

  I hope you enjoy!

  I intend to synchronize two cDAQ-9174 chassis for an application where I need to acquire data of 8-Thermocouple, voltage 3, 1-Full bridge (strain gauge) and channel 2-meter at the same time. This enforcement action is based encoder (quadrature with 1024 ticks per round) and I need to acquire data very fast and synchronized in all channels!

  I bought the material and I'm going to set up 3-voltage channels in NOR-9221, Thermocouples-4-NOR-9211, 1 strain of NOR-9237 and 2-meter gauge in NOR-9401 first cDAQ-9174 chassis Modules. I will then put remaining Thermocouples-4 in the second cDAQ-9174 chassis.

  The question is whether it will work?

  If Yes! Then, kindly help me on how to have synchronized it data from these two cDAQ-9174 chassis with all such modules as mentioned above?

  I hope someone can help me with that and can guide me to do this task! I'm using Labview 2009 with NOR-DAQmx 2009

  Kind regards!

  Tajim!

  A few comments after looking at your code:

  I don't understand what you're doing with cancel in the task of counter.

  You try to use the encoder as your sample clock?  You can do it for the module 9221 and NI 9211, but it will not work with the NI 9237 as I mentioned above.  You can move the NI 9237 in a separate task and from there, you have a few options depending on how you want to synchronize.

  How many times you expect to get your clock on cDAQ2Mod3/PFI0?

• synchronization and clock cDAQ-9174

  I have a cDAQ-9174 with chassis

  HAVE - 9205 OR 9205

  HAVE - NOR 9219

  DIO - OR 9401.

  "NOR-DAQmx allows the on-board clock routing synchronize acquisition or generation of data transactions. A single sync signal or a trigger can be shared between multiple operations on the same device to ensure that the data are synchronized. These signals is shared by the simple signals routing functions that allow connections integrated hardware DAQ. " (from http://zone.ni.com/devzone/cda/tut/p/id/6829)

  When I check the itineraries device in MAX tab' for chassis and c modules individually, I found many clocks with the Green blocks (direct Route). "Once a physical connection is determined, the NOR-DAQmx driver lets the user quickly and easily use this connection to synchronize operations".

  Now my question is how do you choose among these clocks available. What is the frequency of these clocks? The highest frequency the better? What is the difference between /Ctr0SampleClock, /Ctr0InternalOutput, /Ctr0Source, /Ctr0A?

  For example, why well/Dev1/I/SampleClock or Ctr0InternalOutput or of others, especially as a source for the .vi DAQmx Timing (sample clock)?

  Thanks a lot for your help

  Bing

  Concerning

  Hello NCLbingji,

  I think you mix instructions from the manuals of different material. The link you posted refers to the synchronization of several separate devices, while your cDAQ with its modules really is like having one device almost. You will find more relevant information in your manual of cDAQ chassis. For multiple devices, you indeed have a "physical connection", but with the cDAQ is not necessary. You set up these connections in the software in any way, and this should get the routing sorting at the driver level.

  Try to identify which channel will be your a 'primary', the one driving all others and synchronization, the value then asked SampleClock of this string as the rest (DAQmx Trigger.vi) trigger ('secondary') channels, then start all 'secondary' jobs and finally start your "primary" task This will trigger all tasks at the same time. Take a look at the attached picture, which is another application that I worked on, but I think this will help.

  I hope this helps.

  Kind regards

  Michael S.
  Technical sales engineer
  NEITHER UK & Ireland

• Increase the frequency of sampling on the cdaq 9174 with neither 9212

  Hi all!

  I am trying to increase my sampling rate on my nor 9212, that I use with a cdaq 9174 and LV 2015. Apparently, the sampling frequency depends on the time of conversion and can be changed between the high speed, the Best 60 Hz rejection, best 50 Hz rejection, and high resolution. (see http://www.ni.com/pdf/manuals/374358a_02.pdf, page 6). My maximum sampling frequency is 1.8 Hz, which indicates the use of the mode of synchronization of high resolution

  I found this documentation explaining how to change with a crio:

  http://zone.NI.com/reference/en-XX/help/373197D-01/criodevicehelp/cRIO-9212_rt/

  However, I can't change it when the module is not in my project with my cdaq. My question is: How can I change the conversion without a crio time?

  Thank you very much!

  X0N0

  Hi X0N0,

  There is a DAQmx property for this:

  

  You are welcome!

• How to speed up loop DAQ triggered using NOR cDAQ-9174 with NOR-9215 and NOR-9402

  Hello

  I use LV2010 and NOR-DAQmx 9.2.2. I have a NOR cDAQ-9174 with a NEITHER-9215 4 channel 100 k simultaneous ADC and NOR-9402 4 channel DIO module trigger and reset.

  We run WinXP sp3 on a Dell M4400 core 2 duo @2. 26 Ghz.

  I used the code example NI DAQmx for acquisition of tension with trigger HW. My goal is to try all 4 channels on the 9215 simultaneously when a trigger is received on channel 0 of the 9402, after data is read, I use channel 1 on the 9402 to reset the trigger of the target material.  I have a version of this work, however the maximum event rate is ~ 16/second. I have the Setup 9215 for finite samples / 10 samples per channel which is ~ 400uSec of conversion time and I realize he is above in the appeal of vi, but ~ 50mSeconds worth?

  The target detector can put out up to 1 k / event triggers / seconds.  Only, I received a rate of 8 per second and I added the NOR-DAQmx control vi driver and chose "commit" this did double the rate.

  My question is what is the maximum rate of loop for these devices (trigger/conversion/reading device / reset) and start over? I noticed that just let free the 9215, carried out using the 'Acq & chart internal strain Clk' raised only the rate of events up to 20 Hz.

  Thank you

  normbo663

  Hi normbo663,

  You can get this works far better assuming you have an available counter (there are 4 on the backplane of the 9174).

  DAQ Compact supports the tasks of meter output "redeclenchables" that can be used to generate a finite pulse train.  You can set a task of finished meter redeclenchables output to be used as sample for your task of analog clock.  The task of the meter output will be re-Army (less than 12, 5-25 ns) as soon as it's finished out the last pulse.  The task of analog input would be configured to run continuously, but it would only sample based on the output of the meter triggered.  For an example, see here.

  You can reference the internal counters on the cDAQ without signals through a routing module using: cDAQ1/_ctr0 (right click on the chain counter control, then select i/o name of filtering and check channels internal to add these options to the drop down).

  Thus, with the tips above, you should be able to immediately re - arming your analog acquisition on the 9215 using one background basket counters.  It seems that the second half of the application is to use a second channel on the 9402 to reset the trigger of your DUT.  You can deterministically generate this signal so by configuring a 2nd redeclenchables meter out task (single pulse, but this time).  All you need to do is the initial delay on the appropriate value for your analog acquisition.  Trigger this counter on the same PFI line that trigger you your analog task from.

  Using counters to generate the signals you need in a deterministic way, the loop becomes is no longer a problem (as long as your input buffer does not overflow).  You may need to re-read several triggers at the same time for the loop to keep (for example to read 1000 samples each, which would correspond to 100 triggers 10 samples).

  Best regards

• cDAQ-9174 cannot use the counters of 3 or 4

  Hello

  I try to display the entry of a potentiometer and 3 encoders of Quad.  I have a CDAQ-9174 with a 9215 OR (for the POT) in the slot 1, 9411 or in slot 2 and a NI 9401 in the Groove 3 (soon to another NOR 9411 when it happens).

  If I run the example 'Measure angular Position.vi' on each individual encoder (by selecting either modules on counter 0), I can see all three encoders work properly (exit count increments and decrements as expected)

  If I run the Test panels able and automation, I see all three encoders switch their respective 2 channels each.

  But when I change 'measurement Position.vi"to have all three separate entries (I copied the task of creating and all its entries twice, then expanded the while loop to have three different DaqMX Read vi, then 2 clearer spots on the right side (output) at all in a loop), I see only 2 encoders increment and decrement.

  I do not use Index Z entries, I changed the type of decoding to X 2 for all three.  I tried to change that, but I especially get the same result (2 encoders working, is not 1).

  I changed the encoders are the use of counters to 0, 1, and 2.  Only the assigned to counter 2 encoder does not work.

  I tried to use meter 3 - same problem.

  Is there a way to confirm that the cDAQ-9174 counters all work?  I tried all three in the test panels and they seem to be good?

  A cDAQ-9174 can manage 2 Quad encoders using 2 signals of each (A and B signals - A for metering, B for management)?

  I have something configured incorrectly?  If you use two Modules of entry at the same time, is it some additional configuration that must be done?

  Really appreciate some help here.

  Thank you

  Sam

  Yes, we use the 9.0.2 version drivers and no there is no error message.

  Turns out we had wired it incorrectly for Counter 2 use.  Being on the second module, I thought we had wire the same way the first module has been wired - not realizing that counters need a provision of the specific pins.

  Thank you for looking into this.

• Difference between the cDAQ-9174 and cDAQ-9178

  I have several cRIO-9081.  Each cRIO-9081 running NOR-DAQmx 15.5.  On four of the cRIO-9018 we show you cDAQ - 9178 with 8 modules.  Everything just worked.  On the fifth cRIO-9018, we tried to connect a cDAQ-9174.  The aircraft appeared in the Windows Device Manager and MAX, but MAX has indicated that the aircraft was missing (error-88705) and that Windows can't find a driver for the instrument.

  We then plugged a cDAQ-9178 in the fifth cRIO and everything just worked.

  What is the difference between a cDAQ-9174 and cDAQ-9178 other than the number of the module support?

  Paul

  Hi Paul,.

  It seems it could be a driver problem! What DAQmx version you have installed on two computers? Reinstall the latest version may be worth it because it looks like there may be corruption. You can find the latest version here: http://www.ni.com/download/ni-daqmx-15.5/5901/en/

  You can manually associate the device driver, here: http://digital.ni.com/public.nsf/allkb/5B80CAAA64413B4C86256C5E0000C1A7

  There are modules connected to the cDAQ chassis?

  Also, sometimes, this can happen if you do not restart your computer after the installation of the NOR-DAQmx driver. Restart your computer after the driver installation will allow you to reserve the device successfully. Here are a few others not to try:

  • Check the charger to device OR to see if it is running
  
  
  • Reset the service OR charger
  
  
  • Reset the MAX Configuration database
  
  
  • The system power cycle

• Generate a pulse train, NI 9402 modules in cDAQ-9174 chassis

  I have two modules NI 9402 in a cDAQ-9174 chassis.

  When I output a pulse train on a specific line of the PFI to a specific module, the pulse train is out on the right line of PFI, but on BOTH modules.

  I want that the pulse train out only one of the modules.

  for example, I select cDAQ2Mod1/ctr1 to output a pulse train on PFI3 of module one.  I hear the pulse module one PFI3 train, but I also get it on PFI3 of module 2.

  I am also a measurement of separation of two edges with a different counter, but I don't seem to have this problem.  (The measure only works when I have the signals connected to the module that I've specified.)

  -Paul

  This is the Vi I work with.

  Hmmm...  Looks like it's actually only after I exit a signal on that line.  Maybe I should try to clear the line.

  -Paul

• cDAQ-9174 with modules 9225 and 9239 for issue of power measurements...

  Hello to one and all.

  I do turn a cDAQ-9174 with modules 9225 and 9239 to measure the voltage (120, 208-240, 277 VAC) and current (via the clamp amp i400, Fluke - 10mA/exit A) respectively.

  I have the set scale scale Differential No. (1:1 I guess) for 100: 1 for current and voltage.  With the acquisition mode set to "N samples", 10 samples to read, at the rate of 500 m.  This feeds into 'EPM_Power.vi' (polymorphic VI of the palette of EMP... can be downloaded here, http://sine.ni.com/nips/cds/view/p/lang/en/nid/209826)

  I try to check my numbers with an Analyzer of power quality of 435 Fluke and supporting that upward is a Fluke 179 True RMS DMM with clamp amp i200 (for current playback)

  Now, I'm running is my numbers I take data look like they're following a curve of fishing... the averages are on the right, but when my blood pressure is expected to be relatively stable, it's over the map... same story with my current readings.  I tried several different filters without success.  I would like to have relatively stable values for voltage and current so my other values are correct.  Is there a signal conditioner or filter that will help with this?

  As always, a point in the right direction would be greatly appreciated!

  Thank you!

  Chad

  Hi, Will,

  Your request for a screenshot actuall lead me to the solution.  Not enough samples!  I took little data too slowly and only seeing part of the wave of fishing AC each iteration.  .. that became glaring when I tried to this graph.  So I increased my sampling of 100 to 5 Hz and things seem to have settled things down a bit.  Thank you for the good question!

  SH?

  C

• First it is possible to connect a cDAQ-9174 with a NI TPC-2206 or the NI TPC-2212?

  Hello

  First it is possible to connect a USB CompactDAQ (cDAQ-9174) in a port USB of the TPC-2206 or TPC-2212? ¿Did you try someone before?

  Thank you.

  Hello

  It is possible, Windows XP Embedded provides users the ability to develop on a desktop PC and quickly deploy to an embedded target. With NEITHER-DAQmx on Windows XP Embedded, developers will have access to common programming languages such as C++ and .NET.

  follow the link corresponding to your request: http://www.ni.com/white-paper/7757/en

  Best regards

• cDAQ-9174 does not work in the Bay area

  Hello

  I have a strange problem. We use a cDAQ 9174 to collect data of voltage. It works very well when we use it in our lab in San Clemente, California. However, when we bring this same cDAQ North to our laboratory in the Bay area, it is no longer connects with the laptop. We plug it in the same way, but the computer does not detect the cDAQ while Northern California laboratory. While at San Francisco International Airport, I even tried to plug the cDAQ to my computer while waiting for my flight, and is not connected with the computer then.

  But when we arrived in San Clemente, California and tried the cDAQ overnight, he connected and communicates very well with the computer.

  It is with the same laptop, cDAQ and power cables and usb. The only thing that has changed is the location. We brought this cDAQ North 3 times and each time it never works in the North, but the day after return to the South in San Clemente, the cDAQ works.

  Can someone explain what is happening? It is difficult to solve the problems because right now the cDAQ works very well even though we are in San Clemente.

  Thank you

  OK, I think I understand why he did not.

  I plugged the DAQ today and noticed that I had some ths same problems as before, he did not communicate with my laptop. Labview programs designed to ensure that it did not. I remember talking to a representative of Labview by telephone and he said that sometimes turns off background services. I went looking and found a service called 'NOR device Loader' was arrested. The executable is called nipalsm.exe.

  I restarted the service and reconnected in my DAQ and it still worked!

  I believe that through this service is stopped, the computer does not load the drivers for data acquisition, so that won't work.

  I was able to reproduce the problem by stopping the service and trying to launch my labview programs, meeting the same mistakes that I've had in Norcal. And I solved the problem by restarting the service.

  We had tried to restart your computer to solve the problem, but I guess that this service is not starting sometimes when the computer restarts.

• How can I move bookmarks to new Mac when the synchronization page says "this module has been removed by its author"?

  I tried to move the favorites by creating a synchronization profile, but he gave me the message "add-on has been removed by its author" and I don't know what that means. Within the forum, I found a message stating I can do by the first update for Firefox 9 or something, but my current OS is stuck with the version of Firefox 3.6.26 and will not be upgraded further until I update my OS on my newer computer. So, how can I save and move bookmarks to my new computer, a Mac with 10.6?

  You can restore a JSON backup in bookmarks (library) Manager.

  • Bookmarks > show all bookmarks
  • http://KB.mozillazine.org/Backing_up_and_restoring_bookmarks_-_Firefox

• Digital output with NOR-9401 in cDAQ-9174

  Hello

  I have a cDAQ-9174 with an e/s digital NOR-9401 module. Now I want to output Digital signals on line0:3

  $line0: Boolean 1 time = 10ms

  Line1: Boolean variable 1 time = 20ms

  row2: Boolean variable 1 time = 30ms

  line 3:20 pulses (period = 250us, duty ratio = 0.5) after a time = 40ms

  the value of line0:3 must be Boolean 0 after 45ms

  Can someone let me know what I need to work to solve this please?

  Thank you all for your help.

  Concerning

  Bing

  Thank you Christian for your quick replay.

  I have some experience in programming of microcontroller with C. I learned LABVIEW for about 1 month and followed a lot of demons in line and tutorials. I know that nodes DAQmx Data Acquisition screws and fundamental property.

  As I said at the beginning on the $line0, lin1and line2, they serve to control the relay in my circuit. 10ms could be controlled with the OS clock. Pulse of line3 series is used for IGBT gate signals, which is the critical moment. I want to use the clock machine to accurately control line 3 and synchronize at the same time the pulse with analog inputs from an another two NI9206 modules in the same cDAQ chassis.

  I just want to know more on the digital line demand signal relay output and a correlation between the line of analog input-synchronized finished pulse output. Waveform diagram is locked.

  Thank you.

  Bing

• cDAQ-9174 error-89137

  I have a cDAQ-9174, I want to configure to use and DI, at the same time in two different tasks. It gives me the following-89137 error:

  Possible reasons:

  Specified route can not be satisfied, because it requires resources that are currently in use by another route.

  Source device: cDAQ1
  Terminal: / SampleClock
  Target unit: cDAQ1
  Destination terminal: Slot1/ConvertPulse

  Resources in use by
  Task name: _unnamedTask<32>
  Source device: cDAQ1
  Point source: di/SampleClock
  Target unit: cDAQ1
  Destination terminal: Slot1/ConvertPulse

  Task name: _unnamedTask<33>

  I understand that this is because some courses is in use, but I don't know what that means. I tried to reference the peripheral roads in MAX, but I don't really understand. I have attached my code. You can see that I want to read and write at the same time, which I think should be a fairly simple thing to do. I found a note on the site NOR on the definition of the clocks with the Timekeeping property node. I tried to do, but I couldn't make it work anyway.

  Can someone tell me how I can use DI and PERFORM tasks on the cDAQ even at the same time?

  I figured out that I can not do readings of equipment timed at the same time, I do timed written with this module, so that was the problem.