How about using labview vi of the filter and multiply vi to replace the analog filter and amplifier

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• How to use Labview for measuring the reflectance at different wavelengths automatically

  Hello!

  I'm using labview to communicate with MS257 (a monochromator). If I do not use Labview, I have to use the hand controller (set a wavelength from 300 to 1100 under a grating (a total of four grids).) It takes a lot of time. So I want to use labview to realize the automation. But I don't know how to do, I still can put only a wavelength as a command for MS257, not making any difference.

  Does anyone know how to deal with this?

  Thank you for your time.

  So where are you stuck? It is a fairly common task. Inside of a loop, you can increment the "xxx" and build a table of responses. Look at the Format function in the chain and a knot of shift register/feedback.

• How to use Labview to control the motorized turntable?

  Hello

  I am new to Labview and do a project that requires the use of labview to control the motorized turntable (XYZ axes). I need to use the Labview programming and have no idea at all. Need help, thank you very much!

  Lei,

  Everything said by others is correct and to do because they describe, at a given time. But I always approached these projects of motion control first by looking at the 'motion controller' (I hope you have a) and 'drivers' (what you need) between the computer/LabVIEW and engines decide what communications will be required for these devices and get an idea of the syntax of command and the language to use with them.  In some cases, the controller and the motor driver are integrated in a single unit. Heck, in some cases, they are even integrated with each engine.

  The motors can be the stepper motors or perhaps servomotors.

  In the case of drivers stepper (devices that provide power electronics to run the engines), many of them are run using only two control signals for digital called 'step' (a pulse train) and 'direction' (high-low level) and if it is possible to generate directly with the PC, it's an order of magnitude easier (if you have not already a library of available motion control to manage the generation of these signals and) the execution of the stepper motors) of having a "Motion Controller" between the PC and the "motor".  Engine drivers step by step usually can be configured that current engine and the size of the stage and sometimes for the other plus-moteur/driver-parameter setting. The configuration of these can be made with jumpers, switches or, for some drivers, with orders ASCII on some sort of port of communication, but in general these are values you download the installer once at the beginning and then never touch again if you do not need generally to have a full time available on their change communication path.

  In the case of the actuator drivers (once again the devices that provide power electronics to run the engines), many use a +/-10V control input analog signal, and, again, while it is possible to generate the signal directly with the PC hardware, a separate axes controller is usually much simpler and more robust.  In the case of a servo system, there is also a signal back to an encoder or resolver attached to the engine to be used by any device will exercise the motion controller in the system.  There are once again associated with the driver configuration parameters (and controller in this case, since it is part of the servo feedback loop) which must be configured at the start but once set up properly, they rarely need to be changed again.

  A movement controller which is separated from the PC often manage several drivers, and can often coordinate a movement between them. It will load the rise up/down of the engine speed as that changes. It will be followed by position of each motor. The servo system, but it will take the feedback signal and use it to adjust the speed/position/torque of the engine. The motion controller also deal with race and home or index of signals is usually on most lines of movement and provide information of the State of the switch to the PC.   To run the motor controller is then just a matter of chaining a set commands of (usually ASCII) to indicate how fast to run and how far to go (and direction) and by sending a command "do it." Then, ask you to keep track of the status of the process and the States of the switches.

  In many cases the builders of controllers of movement are a primitive way to communicate with the controllers of a PC with no additional software other than what they offer. With this you can at least have an idea of how different the controller commands and responses they produce. That you can start to build sequences of commands to perform the actions you want.

  You can then add LabVIEW to the mix and to understand how you can get it to send sequences of similar orders on the paths of communication that are available and respond intelligently to the information it receives in return for motion control.

• How to use labview for controlling the HP Network Analyzer

  Hello

  I have a HP network analyzer 8720D connect with my laptop by a USB-Gbspecifications FOR cable. I want to use LABVIEW for control to parser do measurement and data collection. What should I start? Where can I get the labview program to control the parser?

  Thank you.

  Help > find instrument Drivers. Then go to the Instrument Driver Network and read all the links on the use of pilots.

• wanted to know on how to use labview to get the values of the Spectrum Analyzer?

  Hi all

  I am a new Member and I am doing a project I have to see the performance of the DSl cable (lasting different for example 100 m, 200 m) on the Analyzer of spectrum and its values as graphic, food, BW should be get in excel sheet. I the company Rohde and Schwarz Spectrum Analyzer, I use interface GPIB 82357 B Agilent... If anyone can help me how to start. I plugged GPIB to spectrum and its drivers on the computer...

  Thanks in advance

  Patricia

  @Dennis Knutson

  I did not choose, he gave to me... and I have to work use only... no other choice...

• How to use Labview "" buttons"" in the operation of the program?

  I try to use the ok button to run the program adds to the value of the cluster X Y (millemetre) [which is the operation of machine vision] with value X Y offset [which i will to enter myself] but... I don't ' know how it does do, now I try to use the structure of the event, but it does not work

  Please give me some advice please... by the way I've got to do this thing made by 3 days because of my calendar... thank you

  This software is also to locate the orientation for robot to cling to the object using the CCD camera

  Place the structure of the event within a while loop. Take a look at some of the examples provided with LV, for sure, they show it.

  Then, use the change event of value for the ok button (square button of the terminal that fram for the locking behavior set correctly).

  You can pass the data of XY to the loop to output in the same framework of the event to read the moment you press the ok button.

  Felix

• I got a license number for Adobe Master Collection from my school (Stevens Institute of Technology) and I can't understand how to use it to obtain the product. I created a user name and this is as far as I'm away.

  I got a license number for Adobe Master Collection from my school (Stevens Institute of Technology) and I can't understand how to use it to obtain the product. I created a user name and this is as far as I'm away. I need to download the product and I may not know where to start.

  Ask someone to your school... You have a Cloud redemption code, or a number of series CS6?

  If cloud, http://helpx.adobe.com/x-productkb/global/redemption-code-help.html Redemption Code and

  http://www.Adobe.com/products/creativecloud/FAQ.html

  http://helpx.adobe.com/creative-cloud/help/install-apps.html to install or uninstall

  http://forums.Adobe.com/community/download_install_setup/creative_cloud_faq

  What is http://helpx.adobe.com/creative-cloud/help/creative-cloud-desktop.html

  To start https://helpx.adobe.com/creative-cloud.html the Cloud

  If CS6, download to other downloads and enter your serial number when prompted

  Once again, your 1 resource is your school

• How to use JavaScript to change the named view

  How to use JavaScript to change the named view

  Do you mean to jump to a specific Destination named within a PDF file? SE so there

  the method gotoNamedDest of the Document object.

• How to use CSS to create the horizontal navigation bar in Dreamweaver CS6

  How to use CSS to create the horizontal navigation bar in Dreamweaver CS6

  One of the ways to do this is the following: Editor Tryit v1.9

  You can also use floats to get something in the same direction.

• How to use JavaScript to limit the number of boxes to check the user can select a PDF form?

  How to use JavaScript to limit the number of boxes to check the user can select a PDF form?

  Here's the working solution

  Please rename all the boxes like chkBox0, chkBox1... .chkBox30 (must start with 0)

  Value of exports of each checkbox must be "Yes" (default value is Yes)

  Place this Code at the level of the Javascript Document

  -Code JavaScript document-

  var counter = 0;                Checked the meter

  -Count boxes checked again when the document is closed and reopened.

  for (var i = 0; i)<= 30;="">

  If (getField("chkBox"_+_i).value == 'Yes') {}

  Counter += 1;

  }

  }

  -The function of validation-

  function validateCheckBox(name,value) {}

  If (value == 'Yes' & meter)<>

  Counter += 1;

  } else if (value == 'Off') {}

  counter = 1;

  } else {}

  getField ("name") .value = "Off";

  App.Alert ("you can select only four checkboxes");

  }

  }

  -End of Document Javascript-

  Now put this line in the MouseUp event all checkboxes

  Box - Code MouseUp event.

  validateCheckBox (event.target.name, event.target.value);

  //----------------------------------------------------------------------------------

  Hope this will help

  Kind regards

  Post edited by: Mohammad Irfan

• How to use wildcard characters in the filter REMAINS for subscription items

  I've followed this documentation:

  String columns filters

  Support the % operator (started by).

  Support * operator (contains).

  Can't stand (trimmed) operator.

  Examples:

  Name = service *.

  Name = * g *.

  Name = * g - unauthorized

  URL OF THE REST:

  http:// /RequestCenter/nsapi/serviceitems/serviceitemsubscription /=

  I can get the filters to work without wildcards, but have had no success in using ' *' or '%' characters  Please provide an example encoded URL appropriate for

  ServiceItemTypeName starting with "virtual".  I was not able to get all the data returned when using wildcard characters in a filter.

  Here is what I tried:

  ServiceItemTypeName = instant virtual server

  http://10.8.0.46:8080/RequestCenter/NSAPI/serviceitems/serviceitemsubscription/ServiceItemTypeName=virtual%20Server%20Snapshot

  answer: 200

  literal works as expected

  ServiceItemTypeName = virtual %

  http://10.8.0.46:8080/RequestCenter/NSAPI/serviceitems/serviceitemsubscription/ServiceItemTypeName=virtual%25

  Request-Type = application/xml

  answer: 200

  expected result not returned

  ServiceItemTypeName = virtual *.

  http://10.8.0.46:8080 / RequestCenter/nsapi/serviceitems/serviceitemsubscription/ServiceItemTypeName virtual = *.

  Request-Type = application/xml

  500

  Internal error: invalid parameter values specified or an unexpected error.

  fails with the error response

  Hi Dan,.

  I don't think you can use wildcards here.

  Please see the integration Guide to 9.4. Section: "REST API-> Quick Reference.

  You will find a table of what features are supported for resources exposed by the API. There you will find a line for "All Service elements", and you will see that: get all the, sorting, paging and all filters are supported; Search for names of wildcards are not...

  When I came across this situation, I guess I'm trying to do a generic name search here... and it is not supported. This, however, works for the other columns (Designer if created), which is what, in my view, that documentation is trying to describe. (Although, personally, I feel that it is a bug).

• How to use a structure of the event in a Subvi

  I am using a structure of the event within a Subvi.  The Subvi has a table constructor that built tables and the structure of the event is used so that when the program runs, it allows you to change the elements of the array.  It works, but when I apply within a Subvi, it does not work properly.  This goes into a Subvi, because it will be part of a much larger progrram, so it must be modular.

  If you are using a structure of the event, it is not a Subvi.  If you worry about modularity, you should not use the structure of the event.

  You seem to have a fundamental misunderstanding of modularity.  An event structure must be placed in a while loop.  If you have a while loop in a Subvi, you have transferred control of your program to the Subvi.  You are not at this stage modular.  Your higher level GUI has no control.  You would have to create a stupid system of variables to pass data down to the loop to stop the loop and return to your main VI.  This is not a good design decision.

  Instead of searching for a way to make something broken, you should spend effort trying to understand what you really want to accomplish.  You should also spend some time to learn how to work the event structures.

  This application is small at the moment and it is already on the way to the unreadable.  It's a terrible thing to do for you.  Break these habits now.  variables are only when absolutely necessary.  Using subVIs to accomplish individual tasks, do not run the entire application.  With the structures of the event, use a value of stop button change event for will not be held hostage to the time-out.  If your variable is '2' in it, you're doing something wrong.  It has to be something different between set points, put it in the name.  If you want to make the subVIs, create an icon.

  But first and foremost, invest time in understanding dataflow

• How to use resource element in the xml file in the workflow?

  Good afternoon

  In my workflow, I put a parameter of the attribute with the element of resource type and the value of the attribute is an xml file.

  And I had a problem with xml files in my workflow, I would like to use the information in the xml file to store in the variable...

  Example: in the xml file, I put some information about the number of VLAN ID, and in my script task, I would like to know how is used with myvariable.portgroup [0].spec.vlanId?

  Best regards.

  Like this:

  var myXml = new XML(resource.getContentAsMimeAttachment().content);
  

  You can then access your nodes like this:

  myXml.node.subnode

  Google for e4X to get the syntax complete.

• Satellite L550-117 - how to use VGA + HDMI at the same time?

  Hello
  I have a Satellite/Satellite L550 series Satellite L550 - 117.
  Can I use 2 monitors at the same time, using the function key (laptop screen + HDMI, VGA + HDMI, VGA, portable computer), but I would use "laptop screen", "VGA output" + "Output HDMI" at the same time (for example: to play a movie on an HD TV and work on the other two screens).
  I also want to play sounds on computer speakers 'and' an HDMI output, not the speakers for computer 'or' HDMI.

  Is it possible with this notebook and how?

  Thank you

  Hey Buddy,

  Good idea you have unfortunately it of not possible to use 3 monitors at the same time. You can use the internal monitor and an external monitor but not the two external monitors. This is not supported in the graphics card.

  Then, you use internal monitor, VGA connection or internal monitor + HDMI connection. That s what you can do.

• How to use NIDAQmx to determine the number of lines correlated DIO?

  How can I used NIDAQmx to determine the number of correlated DIO lines that supports a device?  For example, the NI6225 supports 8 correlated digital of/s lines while the NI6229 supports 16 correlated digital of/s lines.  How can I used NIDAQmx to determine the NI6225 supports only 8 lines while the NI6229 supports 16 lines?

  I moved this question from a previous thread.

  Thank you

  Ian

  Here is a code snippet that implements the regular expression detection: