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• DAQmx also write Analog DBL 1Chan 1Samp down of released NI USB-6009 - code error-200077

  I'm trying to get 5V 0V high low output of ao0 to an NI USB-6009 based on a switch in LabVIEW using DAQmx writing Analog DBL 1Chan 1Samp.

  When you use a voltmeter connected to ao0 and analog-ground on NI USB-6009; Im not getting anything.

  I also get code error-200077 for some reason any:

  DAQmx Start Task.vi:4
  Property: AO. Max
  asked the value: 10.0
  Valid values begin with: 0.0
  End with valid values: 5.0

  Channel name: Ao0/Dev1

  The task name: _unnamedTask<28425>

  Set the configuration output terminal to the CSR instead of by default.

  Five maximum value and the minimum value to zero.

  See attachment.

• I get error-200077 Daqmx Read when the scale should be understood

  I have an application that uses a custom scales and NOR-9215.  The tasks and scales are that all configuration programmatically.  I get an error that GOT it. The min value is out of range, but when I check my graduation, it seems that it should be fine.  I have attached an image with the error message and also the scaling that I use (slope and offset) for each channel.  I calculated the permitted maximum and minimum values for each of the 3 channels based on the range scale and min/max of the 9215 (+/-10 v).  For all channels, I try to put the AI. Min = 0 and AI. Max = 13, but I get the error message even if these values are within the calculated range.  Is there something else I'm missing?

  Thank you
  Dan

  Solved

• How .vi DAQmx Read (analog 2D NChan DBL NSamp) to acquire continuous data?

  I try to get the .vi DAQmx Read (analog 2D NChan DBL NSamp) to acquire data continuously.  The 'help' indicates I need to wire the number of samples per channel-1, but it doesn't seem to work for my application.  If I have the wiring to any number greater than 0, the data collection works, but is not continuous.  I enclose the code (Sept15_MainPanel_WorkingBaselines_ApplyBaselines and Calibration.vi) and a Subvi (Collect_Baselines.vi) if someone wants to take a look.

  Here's what I'm trying to do:

  I use a unit NI USB-6009 to collect analog voltages of load cells 2 (channel 0 and channel 1) and 2 displacement transducers (channel 2 and 3).  The main panel of the VI contains a listbox with 4 options - 'Check EMG channel', "Collect base lines," "Collect Data" and "end of program".  'Collect base lines' 'End of program' work and I'm working on writing code to "Collect data".

  For the option "Basic collection", 2500 samples are read from 4 channels described above and 2500 samples are averaged.  This works.

  The option "Data collection" - I would like to that data from 4 channels to acquire permanently.  Finally, for the option of data collection, data acquisition stops when channel 0 detects the force of 200 N - so I will not always have a finite number of samples read.  The time it takes to reach the value of this force will be different for each test.

  -How can I get continuous samples for my 4 channel?  Is .vi DAQmx Read (analog 2D NChan DBL NSamp) function badly and if yes, what should I use?

  Thanks in advance for any ideas or advice.

  Esther

  First, in case 1, you need not the structure of flat sequence.  The son of the error and data properly will dictate the flow of execution.  Then, in State 2, you must initialize the shift register, unless you want to keep the data is accumulated each time that you run the vi.  The reason why you don't see all the data here is because you have - 1 wired for the number of samples per input channel.  You must connect a number here, even if you are taking continuous samples.  The service needs to know how much sample to gather at one time.  If you put-1 here, the number of samples per channel must be set up in the synchronization function DAQmx (sample clock).  If you specify a number here, then you put-1 in playback function.  The DAQ hardware will read continuously, you must retrieve the data from time to time, so you must specify the number of samples.  By reading inside a loop, it will continue to read until the stop function is encountered.  I guess that the Clear function acts as a stop.  But you must always indicate playback vi how many samples to read and return on each iteration of the loop.

  The documentation is a little misleading.  He warns that a - 1 will cause a continuous reading.  But the pads are so big, he can not read continuously forever without losing data.  If you specify a finite number, playback in a loop, and he will read this number and return the data (empty the internal buffer) at each iteration of the loop.  Continuous means that you just call the start function once.  He will read at each iteration of the loop until the stop function (or clear) is called.

  Here is the difference between the setting of the Timing DAQmx function for continuous or finished reading: finite samples requires a tenure, he reads the finite number of samples, and it's done.  It requires another start to read more data.  Continues to read requires only a start.  It still reads a finite number of samples, but when this is done, you can retrieve the data by calling the read function until he could continue.  After the reading, you don't have to call for new start.  Look at it this way.  Start is what starts the collection of data, not the read function.  Just read empty buffers in your data feed.  The data acquisition continues in continuous mode, but you must call read again to get the data on the pads.  If you specify basically buffer size when you set the number of samples per channel.

• After reinstalling Windows XP I get errors saying ' cannot read memory: 0x7e4195cb'.

  Recvd the blue screen of death on my desktop dell (3rd time), could not function in safe mode. Reinstalled Windows XP, put in the product code to be reactivated, obviously could not get to the internet for activation. now get error msg can't read the memory at 0x7e4195cb, click on Cancel to debug, getting same msg of error with different location? I probably wiped out the recovery with the installation of new partition... any help?

  original title: BSOD with new installation

  I hope that you also didn't erase the utility partition. Press F12 immediately after startup to see if she's still there and you can enter. Sure looks like one of your hardware components is bad!

• Error 200088 using the DAQmx reading VI in a case structure

  Main problem: I'm writing a VI that will read data from a data acquisition and write to a text file when I hit a button "registration". To do this, I use the VI of reading DAQmx in a while loop, which is located in a case statement (I hit the 'Save' button for the case of true), which is in another while loop. My DAQmx create Virtual channels screws are outside of the loop, so a wire goes through three structures to connect these screws to the VI DAQmx Read.

  After clicking on 'Save', my VI works until I hit the "Stop" button, how I get error 200088: ' specified is not valid or does not exist. " If anyone can help me get rid of this error, that would be greatly appreciated!

  I enclose my VI and an image of the error.

  Secondary problem: currently, I use two different DAQmx read live: one mentioned above, which lays down: after clicking 'Save' and the other who reads data continuously to display on maps. I want to combine these two, but I don't know if this is possible given the case statement.

  Thank you!

  Hi Alexwright,

  I made some quick changes to demonstrate the producer consumer loop that would be effective in your case. You want to loop of producer in the first while loop so that you use and the same closing DAQmx task. Moving a forwardthis will require some trial and effective change for your application. Please also make sure you use our debugging tools: http://www.ni.com/gettingstarted/labviewbasics/debug.htm.

  I hope this helps.

• Why DAQmx read 200714 error when you save the file?

  In particular vi that I created, I have 3 analog inputs coming in and are graphically represented.  If I choose to save the information to a file, a dialog box appears and I can choose what to save it under.  If I take too long to save the file (aka about 8-10 seconds if the sample read rate is 500/s) then I get this error once the file has been saved:

  Error-200714 occurred at .vi DAQmx Read (analog 1-d NChan DBL 1Samp)
  Possible reasons:
  Acquisition stopped because the driver could not transfer the data from the device to the computer's memory rather quickly. This was due to limitations of the computer system.
  Reduce your sample clock rate, the number of channels in the task, or the number of programs on your computer that is running simultaneously.

  Why the DAQmx bed vi I have this problem when the vi has been idle for 10 seconds then I choose where to save the file?  How can I fix this error?

  Hi child of pre-school age,

  I think your error might be caused by the read buffer overflow. my suggestions for you would be to either the following four ideas:

  1. stop the acquisition before writing the file. This should mean that the DAQmx Read function will no longer be reading and therefore does not generate an error.

  2. If you still want to read the data but also write data as well, I think you'd be best suited for use live TDMS. TDMS allows the user to stream to a reading of filewhilst.

  3. the configuration backup dialog box file before starting the acquisition. Download the user to enter all data in the file before you start to acquire.

  4. change the buffer to unlimited so that you have enough time to navigate the record window.

  If you send your VI I can advise others

  Let me know how you go,

• DAQmx Read 1 d vs 2D DBL WFM

  Another that the convenience of the format of the data acquired, are there benefits (e.g., memory, speed, etc.) usage

  DAQmx readout 1 d Wfm NChan NSamp

  -Or-

  DAQmx read analog 2D DBL NChan NSamp

  I'm a life-long in multiple buffer
  channels using an architecture of producer/consumer. I am not concerned by information in absolute time available in the format of the wave form; It is convenient, but I can get what I need also.  In post processing of the data, the format is a stack or face.  If I collect the Wfm 1 d data I end up stripping to the Y-data for certain analyses, but eventually the construction of waveforms for the analysis of the other if I collect a given 2D DBL.

  -CTF

  I did a quick comparative analysis and it seems that the WFM D 1 is slower and takes more memory than the 2D DBL.  The overall impact of these differences depends on the size of your data blocks.

• How to bothAnalog DBL and Analog 2D 1 d DAQmx read.vi wfm

  Hello

  I use Labview2010 and NIUSB6009 for aquairing data. I need to have two Analog1D waveforms and

  Analog DBl DAQmx Read.vi 2D. I do continuous sampling.

  no idea how to get both types of DAQmx Read.vi?

  Thank you

  If you get the data from one channel at a time, then you will probably get table 1 d of waveform. If you want to acquire data from multiple channels at the same time then you should get 2D table contains all the information channels.

  If I'm right, you can't get both types of data (1 d and 2D) DAQmx playback function. I did not hear that. That's all what I can expect.

• Error-200524 occurred at .vi:2 DAQmx Write (analog 1-d NChan DBL 1Samp)

  I'm trying to generate a signal to usb-6009 of simulated signal.

  However, he keep poping errors:

  Error-200524 occurred at .vi:2 DAQmx Write (analog 1-d NChan DBL 1Samp) if I choose "1 sample on request" in mx data acquisition.

  If I have chaged to "continuous sample", the error has become

  Error-200077 during the property Node DAQmx Timing (arg) 1 DAQmx Timing (sample clock) .vi:3-> 1.vi:Instance:0:1-> Untitled 1 Untitled. VI

  Can someone could take care of my problem?

  Very appreciate

  The limitations of the analog output of your device is documented in the manual and has been considered on several occasions. Because it supports at the time of the application, you can only pass a single value to a moment, not a waveform. The timing is only the software and you can not generate a signal without a lot of jitter and the max frequency will be by the spec.

• Error-200088 on digital read

  LabVIEW 8.5 / DAQmX 9.3 / USB-6211

  I did not want this post without trying everything I could think of, but after a week I'm ideas.

  I create 2 config Subvi, read analog and digital tasks. When I run the main vi (digital playback problem), it runs without error until I have call the config.vi. Then, it throws an error-00088 (invalid or unassigned task). I ran with the tracer on (bulb) and the digital reading (where I have indicated in the block diag) is the area of the problem. The error is 'OK' to go in, "-200088' coming-out.» I have defined the task until it's called, but he seems to think that I don't have. I'm sure that I made a mistake of workflow, but I can't find it. Any ideas?

  BTW, there is a file of menu RT with this project that this forum doesn't let me download. I hope that the vi can work without it she

  is a choice of menu that calls the config.vi

  One thing I immedaitely see it is that the structure of your event in the Subvi makes void the task because you have "use default if Unwired.

• Medium-sized dynamic data analog input read DAQmx read

  Hi, I'm new to labview. Is there an easy way to index using the dynamics of data returned by a readout DAQmx x samples to calculate a moving average? My thought was to read the analog input for X samples pump with the data in another loop through the data, but I can't quite understand how index using the returned data set to extract the measurement value double returned for each sample.

  Any ideas on that?

  Thank you...

  If you get a type of waveform data, why did you ask on dynamic data? No, of course not would you use the conversion of dynamic data on a waveform.

  If you want only one channel, then your DAQmx Read could be changed to 1Chan NSamp. If your channel list only has one channel, you will get a table 1 d with a single element that can be indexed. To get the average of a waveform use the statistical function with the waveform. You use the average Point by Point, and not the average function that has a table for an entry.

  Make sure you always have context-sensitive help on. You can avoid many of these rookie mistakes simple.

• How to get the timestamp of data DAQmx Read

  Hello

  I have to read 4 analog channels using DAQmx AI read in LabVIEW 2012. I am using screws DAQmx.

  Acquisition rate is 4000 samples per second, and the number of samples per channel is 200.

  I use only one task DAQmx to read the data. I get 4 data tables for 4 channels each table length is 200, every time, DAQmx Read happens.

  But I want to get the seal of these 200 samples per channel. How to get the seal of these samples, made me know.

  Thank you

  You have not indicated your code. If you choose to read the waveform data, the cluster includes t0 and dt. That's all the information you need.

• Sequence special error in DAQmx create raster scan with 2 Motors of stepper motors: Error Code 200088

  Hello

  I am trying to create a LabVIEW program that controls two bipolar motors to create a raster scan. I use DAQmx and Labview 2012 SP1 with a usb 6008. I got the engines to move in one direction, but when I try and get them to move in another direction in a separate task, I get an error-200088 code indicating that my task is not valid. This happens at the beginning vi to move the motor x in the opposite direction of the task.

  The logic underlying the program is as follows:

  1. move the engine x a certain number of steps to the right

  2. move the engine are a number of steps down

  3. move the engine x the same number of steps as 1 to the left

  4. get off the engine is the same number of steps 2

  5. repeat

  I can get the steps 1 and 2 work but I have problems with step 3. I use a stacked sequence to show the task for each step.

  I appricate all the advice on this topic as part of a final year project

  Thank you

  Aoife

  You can solve this problem very simply.  Move all DAQmx departure calls happen * before * the structure of sequence rather than inside.  Similarly,.

  move all calls to DAQmx Stop and DAQmx Clear happen * after * the structure of sequence rather than inside.

  I would sequence the DAQmx Write calls to write the bit of direction * before * writing the bit clock.   And I highly recommend that wire you

  to the top of your tenants error and outs so you can be informed of any errors in the DAQmx tasks.

  -Kevin P

• analog parallel DAQmx reads at different rates of acquisition

  I'm running two 9172 chassis with a total of 11 modules. I have two 9217 modules for reading RTDs and a 9205 for sensors of reading level. I've set up three spots, one for each module.
  If I do a task sheet and place DAQmx Read in a loop, I can read all the data without problem, but the three tasks take 4.59 seconds per iteration (reading the RTD is seems to be slower). I need to update the level readings more Rapids, but if I do two parallel loops, try to read the RTD in a loop (two tasks) and the level in its own loop sensors I get an error that the resource is not available - apparently only one instance of DAQmx Read can be called both.
  Is there a work around for this?

  thanx
  lmd2

  Larry,

  Your problems are all related to the task that is described in the manual DAQmx State model.  Each 9172 chassis can have 1 HAVE task that runs at a given time.  If you try to start a second task, you will get an error.  When you use the loop FOR your code is starting and collapses of each task in order that takes a lot of time and explains the 4.59 seconds.  Ideal for config and start tasks in an init State and then begins to acquire data.  The only thing left to do is to release the input/output by stopping and disabling tasks when you did.

  One way to solve this problem would be to install two RTD modules in a single chassis and all 9205 modules in other chassis.  Another way would be to oversample of RTD and process the additional data later.