Error-200431, DAQmx create Channel .vi (I-voltage-Custom with excitement)

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• error-229771 DAQmx create channel (AO-tension-Basic) .vi:3 < append > < B > task name: _unnamedTask < /B > < 0 >

  Hello!

  I have a PCIe-6259 and BNC-2110, and I got this error. It worked until this summer, but not now...

  THX,

  Gaël.

  I restart or config in the work of MAX and it's now.

• 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?

• 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

• 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.

• What channel DAQmx property corresponds to "name" entry "DAQmx create Channel.vi?

  Hello people,

  I am changing a program, I have inherited so that it uses DAQmx virtual tasks rather than have the task and the channels created by programming of in the code.

  In the existing code, the entry 'name' on the 'DAQmx create Channel.vi' is wired with a value.  When you use a virtual task DAQmx, I do not use the 'DAQmx create Channel.vi', but I still want to set the values of the "name" in the code with the help of a property DAQmx node.  However, I can't find a property called "name".  Such a property exists with a different name?

  Best regards

  Chris

  
  

• Error 200077 (frequency) and 200452 (task control loop) error occurred DAQmx create calendar Source.vi

  Hello

  I'm trying to control the timing of a timed loop. So far, I have tried several approaches via the software and which worked very well except the time loop in some missed cases 1-2 Ms I want to make sure the timing is right. I tried to provide an external clock through the acquisition of data I. The system I use is NI USB-6212. It has two counters and DIO and AIO, but I keep getting errors. I tried two different approaches. One was to use directly the game 'DAQmx create calendar Source.vi' in frequency mode, and when I did, I got error 200077. Then I found a post of somone saying that sometimes it is not possible and an alternative method is to use the same vi but set task of loop control mode. This one gave me Error200452. For this one you will see in my attachment the suggestion was to use an AI then the moment of him and then use this task for Creat DAQmx synchronization Source.

  I don't know what the problem is or if I need to put something differently.

  Please let me know if you can help me with this.

  I'll try to continue to work on that, but if anyone of you a suggestion I'll be very happy to consider the issue.

  Thank you in advance,

  Best, Massimo.

  Massimo,

  In my view, the errors that you see are the result of your hardware USB-6212 is supporting the functionality of the task control loop.  I have a M Series PCI card that is capable of operating both of your screws attached without problem (although they still +/-1ms variation on occaision).  When I try to use a USB-6212 simulation, I get the same error codes that you do.  Unfortunately, it's just a case of a lack of equipment.

  Kind regards

• Error-could not create an instance of the custom function

  Hello
  
  I'm trying to implement an extension of the simple custom function OPM 10.2. Here is the code:
  package com.oracle.determinations.examples;
  
  import com.oracle.determinations.engine.CustomFunction;
  import com.oracle.determinations.engine.EntityInstance;
  import java.util.Random;
  
  SerializableAttribute public class RandomFunction extends CustomFunction {}
  public Object evaluate (EntityInstance entityInstance, Object [] items) {}
  
  If (items [0] == null) {}
  return 0;
  } else {}
  -Code to generate a random number
  }
  }
  }
  
  The xml extension is the following:
  -< extension >
  -< features >
  -name of the function = "RandomFunction" type return = 'number' >
  < name arg = "enterednumber" type = "number" / >
  < Manager platform = 'java' class = "com.oracle.determinations.examples.RandomFunction" / > "
  < Manager platform = "dotnet" class = "com.oracle.determinations.examples.RandomFunction" / > "
  < / feature >
  < / functions >
  < / extension >
  
  I placed the code extension xml under the Development\Extensions\Examples folder and the jar file named "JavaLibrary1" containing only the above mentioned code is under Development\Extensions\Examples\lib.
  
  The rule that calls the custom function is as follows:
  the random number = RandomFunction (figure)
  
  I get the error "Unable to create year instance of com.oracle.determinations.examples.RandomFunction" when I debug the project.
  
  Please tell me how to solve this problem.
  
  Thank you
  JAS

  Received your email and found the problem. The problem is the custom .NET, function definition is invalid, and must be (or must be removed).

  When you are debugging with screens, it uses a combination of dosages of Web for Java and the host of the debugger, which takes place in .NET. Although the modules runs into reality in the determinations of web, the debugger needs always to be able to open the modules locally for purposes of reflection (eg. obtaining a list of all possible attributes and the type of data). Even if the modules is not actually executed in .NET, it must therefore be loadable, which means that if you do not provide a custom function .NET Manager, it must be valid. This:

  >
  
  >

  Does not appoint a .NET class, that's why the debugger complains. Delete this line (only the Manager of java leaving intact) and your example works.

  >
  You also mentioned that the random function is not a good choice, that means that the engine of dosage will not work with the random function?
  >

  Yes, a random function will not work because the engine must be (and is optimized to be) deterministic - same entry should always produce the same result.

  It is difficult to imagine what you can in theory of random numbers for (otherwise), but if you don't need, you may either) front of seeds new sessions with random inputs as attributes of basic (requires customization of your host application, for example, web determinations) or b) generate the random number from other values in your modules such as the customer, name and date of birth. This should ensure that the same combination of inputs will result in the same number of 'random' each time.

• 88302 error occurred at .vi:1780001 DAQmx create channel (I-voltage-Basic)

  Hi all. I'm new to the Forum so if I leave aside any improtant info please forgive me. I try to enter a NOR-DAQ sensor voltages, but the 88302 error keeps popping up when I run the vi. I took screenshots and circled the blocks which throw errors. I have attached the screenshots and the vi. I tried restarting my computer and NEITHER-DQA. I should also mention that I am using LabVIEW 2013 Version 13.0f1 (32 bit). Any help would be greatly appreciated!

  It turns out that some drivers on the computer have been updated and the latest version did not support some of our old stuff. The old drivers have been resettled, and the error went away.

  -Chris

• 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

• Synchronization of HAVE several devices in the PXI by the Sub - VI of DAQmx create channel

  Hello

  There are two PXI-6123 cards in the slots of the PXI-8109, and then I would acquire the simultaneous analog input signals.
  The manual of the PXI-6123 recommended with a common time as a master Timebase and base to the slave devices.

  However, I wonder if I can take advantage of the method as the accessory, including all channels to HAVE the devices in the physical channels to create.

  Does it work? How can I know what are the "some data acquisition hardware OR" in the passage of the attachment?

  Hello

  Please refer to this KB: http://digital.ni.com/public.nsf/allkb/78E44565FD87E7D686257108007F94F8. I think that you are good with your two PXI-6123 devices, if only you DAQmx 8.1 or later installed. If please come back and let us know your test result.

  Thank you

  Phil

• If I replace the control with another why DAQmx create channel once complain a false claim?

  I tried to replace the frequency by another control in the example found here complete PWM:

  http://www.NI.com/white-paper/2991/en

  However, I get the following error message:

  

  Possible reasons:

  Requested value is not supported for this property value. The value of the property may be invalid because it is in conflict with another property.

  Property: CO. Pulse.Freq
  Required value: 0.000000
  Valid values begin with: 22.300000e - 309
  Valid values ending with: 20.0e6

  Channel name: Dev1/ctr0

  Task name: _unnamedTask<10>

  My wiring diagram looks like this:

  

  If I cancel my change (i.e. I have remove the frequency control knob and turn it over to the control of the example, it works perfectly.)  I get the waveform is displayed in the oscilloscope.

  My goal is to simply use a frequency and duty cycle control knob.  How can I achieve this?

  There are two things to do.

  What I think you did now changes the scale of the handle.

  You will also need to change the values that are allowed to enter. You will do on the data entry tab in the dialog button properti.

  Uncheck the 'use default', the Minimum value limits and Maximum identical to your balance.

  Value "Response to value out of range" Coerce to both Minimum and Maximum.

  I hope this helps.
  Let me know if you have more problems.

• Error with creating an installer of Firefox customized with 7zip

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• How to create and populate a form customized with 2 lines

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