set up a placeholder or virtual DAQmx SCXI task?

Similar Questions

• Daq stop task VI back to the State of the task was really forward the DAQmx Start Task or DAQmx writing?

  Hello

  I use DAQmx and DAQ Assistant and try to get the details on the following questions.

  1 does Daq stop task VI really return to the State of the task is in front the DAQmx Start Task or DAQmx writing? Digital Input taking as an example, I don't think that the status of the task means that input data because I tried and I can't really back to the entry level it was.

  Maybe more experienced people can help to share their expertise.

  2. the information in help indicates "virtual channels created with the function/VI DAQmx create Virtual Channel are called virtual channels the and cannot be used in the task." But I don't know what "in his work" means.

  3. could I get some guidelines or expertise on the Labview programmers when use virtual channels the and when, to the more global?

  Thank you!

  Best regards

  Allen

  If you create a channel of the task, or scale just usuing the screw to create or Assistant session wire io is the only way to pass the info autour.  It is not saved anywhere on the disc.  A channel of the task or the scale in a project can be used by anything in this project.  A channel of the task or the scale recorded in MAX can be used by anything on this machine.  Its an extended thing.

  And Yes, the DAQ Assistant fresh extra performance overhead and the poor than the DAQmx API.  Often, it won't have the impact of a little experiment.  Large applications should avoid the express Visa.

• Do you need 'DAQmx start task' vi read from a device NI DAQ (NI 9205)?

  I have a NI 9205, which I use to get a waveform data. To get started quickly, I used the wizard DAQ Vi. The code below (FIGURE 1) is the acquisition of data help VI looked like when I convert LabVIEW code and made some minor adjustments.

  When I looked online to see how to get hardware DAQ data, many sources use the task start DAQmx in figure 2.

  DAQmx start using VI makes another?  Materials using DAQ assist in loop gives you a lack of performance?    If so, figure a will have a lack of performance too as it is basically the DAQ help code?

  FIGURE 1

  Hello sticyfinger,

  Help for the Start Task function:

  "If you do not use this VI, a measurement task starts automatically when execution of the reading DAQmx VI. Automatic start of theDAQmx VI entry write determines if a build task starts automatically when the execution of the writing DAQmx VI.

  If you do not use the DAQmx start task VI and VI task DAQmx stop when you use DAQmx Read VI or VI to write DAQmx several times, as in a loop, the task starts and stops several times. Start and stop a task repeatedly reduce the performance of the application. »

  Hope that helps!

• Error-50103 occurred at DAQmx start Task.vi:11

  Hello

  I use a nor-6008 to perform a thermal sector and I get the error "error-50103 occurred at DAQmx Start Task.vi:11 '. I have read other forums of discussion and it seems combe because I use the wizard DAQmx who don't properly resolve the resource when finsihed. I've dug further and saw that it is linked to an on-board clock synchronization problems. However, I can understand how to solve this problem.

  I thought that I create a loop that continuously monitors inputs and sometimes to interrogate the memory so I'm not kidding to the top of the clock. It's much harder to do than sounds. Can someone take a look at my code and give me some advice/suggestions to clean the DAQmx assistants.

  Thanks in advance

  Cole

  I finished by dividing my resource between the two input channels using a single assistant DAQ and dividing down the data rate and the number of samples. Works fine now.

  Big pain in the ass well.

• Stand-alone application with LabView 7.0 get error cannot find DAQmx clear task.vi

  I tried to create a stand alone vi with the Build Application or shared Library (dll) in LabVeiw 7.0

  When I put it on another PC to test it I get the error "cannot find DAQmx clear task.vi.

  the other PC also has 7.0 and 8.1 DAQmx Labview.

  I think my problem is in the source tab, where you are supposed to add dynamic vi and support, I have search the forums and database of nor and have not found a solution.

  Hi LabTech09,

  When you run the executable file on the other computer, that's when you get this error?  You have the same exact versions of DAQmx and LabVIEW on both computers?  Is the dialog box allow you to navigate to the clear task.vi DAQmx?  If so, you can find these screws in C:\Program NIUninstaller Instruments\LabVIEW 7.0\vi.lib\DAQmx\configure\task.llb.  The executable runs on the development computer (the machine, it was compiled on)?

• "Windows needs your permission to continue" - where is the setting to remove this message when you perform tasks?

  "Windows needs your permission to continue" - where is the setting to remove this message when you perform tasks? Thx a lot...

  Windows needs your permission to continue, where is the setting to remove this message when you perform tasks? Thx a lot...

  Windows needs your permission to continue, where is the setting to remove this message when you perform tasks? Thx a lot...

  You probably means User Account Control. Here's how to disable: http://www.howtogeek.com/howto/windows-vista/disable-user-account-control-uac-the-easy-way-on-windows-vista/

• communication with DAQmx SCXI

  Hello

  I have a problem to connect with a SCXI-1540 module.

  In MAX, I see the module, and I put the "data area" a task NEITHER-DAQmx to reed the voltage on the input.

  I see a standard value of 5, 38V even if I change the entry.

  I missed a setting?

  
  

• How to set up a "dummy" or "virtual" port

  Hi, I'm relatively new to Labview programming.  I work with the NI USB-6212.  I was wondering if it is possible to create a "dummy" or "virtual" port, so I can finally create a port for example line output. port0/line16.  Basically I want some bits to go to this line and the "status quo".

  Any suggestion would be appreciated.

  Thank you

  VK

  There are several ways to address the issue and how you will use this 'virtual' Port is one of the choice between the methods.

  The easiest way is to create a USB-6212 simulation:

  Interfaces and select Max devices

  Right click > create new > DAQmx simulated device or modular instrument

  Expand + M series: DAQ and select NI USB 6212.

  You'll be able to create scales channels etc. that are appropriate for a tasks OR USB 6212 assistant DAQmx will treat it as if it was true, and you can try the task and, LabVIEW code call a task on a simulated device will work just fine.

  The down side is when you actually get material its often difficult to retarget the tasks for using the real device (no option to send the task... no option to replace the device with...) Do not hesitate at the idea of Kudos. If you need to change the task or swap device names and which is not infallible.

  Another option that I use for my development (and, I code by intention... very rarely have any material or simulated in my cube)

  must care not the configuration of the task until I integrate with hardware.  Allows to set the example that I have in my current project:

  

  With the exception of the name of the task that this exact code is part of the project I opened today.  This AE wraps completely all I want to do with this task.  Now, I have the code to fall in my application and can create the easilly task on the target computer.  Notice of Here.vi? I'll just go through the hierarchy of the project and find all instances. Create the task and TEST IT on the live system.  When all instances of here.vi went my code is error free and integrated with the hardware running.

  [edit] it is what happens with a break in three hours while you answer.  Tim beats you to it

• How to set DAQmx period task input terminal

  I have a measurement period counter as task created in VB6.0 using Measurement Studio 8.6 and NOR-DAQmx. Is it possible to configure the input (door) to be PFI0 instead of the default Terminal.

  Thanks, vecsol...

  The terminals of the meter are wired on certain pins on the DAQ card.  The door of the Terminal is not set for a 'default', the door of the meter is connected to a certain line of PFI - this cannot be changed.  See help NI - DAQmx Device terminals for more information on PFI line corresponds to what terminal of the meter.

• DAQmx SCXI-1167

  Read more http://zone.ni.com/devzone/cda/tut/p/id/3308 he says rather non-challantly that ' module PXI-2567 and SCXI-1167 can also be programmed using the functions of NOR-DAQmx DIO. "

  Does that mean that what follows (simple example) would work with the SCXI-1167, installed in a SCXI-1001 chassis?

  

  What happens if the SCXI-1167 was connected to the PC via the USB-1600 module?  I'm inclined to think it WOULD because of the statement of the SCXI-1600 data sheet:

  "The SCXI-1600 is a module of control for entry SCXI analog, analog output, digital i/o modulesand switching and full 16-bit digitizer."

  Hello!

  Please post on the Forums OR! I have configured material today and succescully executed the code you posted. So, you're right, it's possible!

• Powecli set IP for a Windows virtual machine, IP pool

  Hello

  I followed all the steps in this article https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.networking.doc%2FGUID-DBF79F52-925A-4D0D-893C-49B911D3AC54.html and I need the following to make it work,

  1. pursuant to article when an IP pool is configured, mapped to a portgroup VM in this network is VAPP options enabled and I put it in the static pool of IP.

  2. so when a virtual machine is on the network adapter in the virtual machine must be assigned an IP address from the IP pool.

  3. but VM NIC adapter gets never assigned with an IP address from the pool and VMware have confirmed this IP pool do not have a capacity to push an IP address to the virtual machine.

  I'm looking for a script that can be kept inside the virtual machine and pull an IP address pool option or VAPP machines IP and assign the adapter NIC VM (Windows). Probably via the VMware tools? Let me know any possibility for that?

  The use of IP pools is like poking yourself in the eye. It feels better when you stop

  If you cannot use DHCP and must use IP pools there are a ton of up front configuration mucking about to make:

  1. Follow the first article you have linked
  2. In the options of vApp for the VM in properties and then create a property for each of the things you want to get the pool of IP (IP, etc.). When to create the entries under type select dynamic property can find the correct entry in the drop-down list then the values come from the IP pool
  3. 
  4. Set up an auto start task (a scheduled task that starts at the start) in your model of virtual machine to run a script that:
     1. Expect that VMware tools start
     2. Run vmtoolsd to get the values of vApp in the VM in XML format
        1. 'C:\Program VMware Tools\vmtoolsd.exe-' cmd 'info-get guestinfo.ovfEnv '.
     3. Parse the XML file to extract the intellectual property, etc..
     4. 
     5. Run the OS commands (netsh, wmic, vbScript (wmi) or Powershell (perhaps native, perhaps wmi according to version)) to take the values from the XML file, and then set the operating system options

  Outside this configuration he plays poorly as the 'network' in the dynamic property is bound to a group of specific ports. If you try to deploy widely, this means a VM model by group of ports (blech!)

  Hope this help to help you started (or persuade you to use DHCP)

• Set up and access a virtual PC using Server 2

  I downloaded VMware server 2 on my HP 64 bit laptop with Vista Home Premium. I need to operate an astronomical camera with a 32-bit driver on this computer. How can I set up a virtual PC to 32 bits that will not have access to the internet to work?

  You must have access to the Internet first to update your virtual operating system with the latest security updates.

  You will need a Windows Setup boot cd (XP, Windows Server 2003, etc.) standard, not a restore cd provided with most laptops.

  You must also install the Microsoft loopback card so that do not connect your network cable to your network adapter.

  Install your VMware Server software, create a new virtual machine and use your cd to start windows for the installation of vm operating system.

  Connect your vm to the internet to update and disconnect again.

• He had to set multiple RDM on a virtual machine

  Hello geek,

  I'm writing a powercli script that attach multiple RDMs to a virtual machine. I google and a lot of scripts I received yet, but it's not obvious.

  I thought to create the csv file containing all the canonical of the RDM and importer names that helps import-CSV, then no idea how to go further.

  New drive hard cmdlet will join but how to attach multiple of RDM?

  Please answer

  Thank you

  Asif

  The UseCulture switch takes care of different separator characters that exist in different locales (locale).

  Get-Help Import-Csv-parameter UseCulture

  The character '%' is an alias for the ForEach-Object cmdlet.

  You can check by doing a

  Get-Alias %

  The Get-Help and Get-Alias cmdlets are very useful when you use PowerShell.

  Another useful is the Get-Member cmdlet, which displays the properties and methods on an object.

  Get-VM-name MyVM | Get-Member

• more info on the DAQmx control task

  Today I came across an older post where I had some questions and Jeff· just Þ· Bohrer showed a good example, it's here:

  http://forums.NI.com/T5/LabVIEW/AES-single-element-queues-data-value-references/m-p/2978093/HIGHLIGH...

  I doesn't pay attention to the DAQmx task manages the part, but now some new questions of time came to my mind, I hope someone can give me some explanations...

  Usually, when I'm working with some hardware with DAQmx driver, I simply specify the channel, and I use the VI of virtual channel create for my work I want to use.

  Recently I read about benefits use MAX to previously create some global (?) of the tasks (for example a cDAQ with many modules and i/o channels) and using these tasks in a LabVIEW project. In this case I can just skip the 'Create Virtual Channel.vi', begins with the measurement with a "Start Task" DAQmx and stopping a VI 'stop the task', correct? However in the link above, the VI "Task of control" (next), first used with a parameter "commit" and during the closing of the measure, with a setting of "Cancel" (and no task to stop vi was used).

  I threw an eye using the Task.vi 'control', but the info it is not too detailed, where I can find a few more details, or maybe someone might highlight the use and benefits of this vi? Sounds a bit 'funny' aid, as for the parameter commit: "Programs the hardware as much as possible depending on the configuration of the task."

  So what is the difference between the use of the "task of control" in a code and do not use it (so when we use only the start and the stop task live)? Do we not the same behavior with the latter?

  Thanks in advance!

  Martins wrote:

  The overall task configured max subject: we conduct research, so I always just develop for our lab, we do not sell anything. However, I have some questions related to a task configured and saved to the MAX:

  • So I have a task created at MAX, I guess that this task will be usable only if I use it in a project of LV on the same PC? What if I need to move my application to another PC (but of course with the same modules cDAQ, etc., but perhaps under different numbers...)

  The task can also be used with a .exe. You can export MAX settings to a file (file, export...) .nce, and then import the settings to a new PC. If necessary you can tweek the numbers.

  • I would like to create an EXE from my code and don't run this EXE to our systems (not install). Y at - he tips that I should keep in mind when I create an executable from a project that contains a task of MAX?

  I can't think of something special. Personally, I prefer to load the name of the task from a configuration file, you can also use a control on the front panel to select the task.

  I have a feeling, when we need complete flexibility, the course of MAX isn't really practical, Yes? I want to say, if we want to for example programmatically recognize all our application materials and create tasks to ensure that all physical changes on the side of the PC in the future will not affect our code?

  I agree that you have as much flexibility, but for my applications most of the time MAX provides sufficient flexibility

  But this scenario could be documented for future users in the lab, I imagine, so what they have to do, is to recreate the overall task? What happens when we take the application as an exe on another PC and manually re-create the (I hope that quite the same) necessary global task with the same name that awaits the EXE? It works this way?

  Thanks for the very useful info!

  Edit: "Yes you can set a MAX task that includes several modules and channels so that they all have the same type of action."

  This is also a limitation compared to the creation of code depending on task, Yes? I mean, using the DAQmx 'Create Virtual Channel.vi', we can even combine for example analog inputs with for example in a cDAQ thermocouple hunts...

  No it is not a limitation, for thermocouple is entered analog. If you can combine them in LabVIEW, you can combine them in MAX.

  Edit2: I really miss other docs of type "real demonstration" of the NEITHER! I could imagine a sort of case study examples where different material handling OR would be explained... Of course we can hunt together pieces of mosaic, but a more compact image could help a lot for those who want to learn faster

  Ben64

• How to measure the frequency of NOR-DAQmx RPM tasks

  Hello

  I'm trying to measure the frequency using the NI DAQmx task and then convert it to a RPM if possible.

  I have the following material available to me.

  I have a block SCXI-1327 terminal, as well as a 6289 PXI multifunction data acquisition Module SCXI 1126.

  I wired in a mag ai7 sensor on my 1126 and then of the passage of an object metal I get a range of 6-8, so I am able to read the mag sensor.

  What I'm trying to do is somehow convert this analog measurement a RPM using the NI DAQmx task only.

  Any help would be appreciated.

  Hi, smooth,

  Yes, you would select linear, then put in the result of this calculation of the slope.

  The Manual recommends a minimum frequency of at least 15 Hz for setting low range. This card is not really designed to measure the frequency for a single pulse over a long period of time.

  The number of LAPS down (assuming one pulse per turn) that we recommend that you measure with the 1126 is so 900 RPM. If you need measure low revs, and you cannot increase the number of impulses per turn, you could consider either read the signal as an analog waveform, or if it's a digital pulse, using a counter to basic task. In this way, you can use any method you want to handle the situation where there is only a single pulse in a long time.