How to use a chart control to enter data?

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  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,

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  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.

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• Satellite P100-PSPA3A-05S00P - how to use the remote control & infrared

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• How to: using the same control panel for several vi and reproducing change to the control panel.

  I created a labview project that contains about 40 vi.  Each vi has a joint control panel which is a group of ip address, or address of the port and the parameters that are passed high-level vi at low level vi for the purpose of control and access our daq cards.  As this control panel exists in all the vi and must not be the same there is a problem when the need to make a change or update the controls during development.  The problem is how long it takes to go and change the control panel of each single vi.  I wish I had a way of reproducing a change in the Panel of control through all six simultaneously.

  All controls in the control panel are in a bundle, so all values are passed to 1 thread.

  I tried to turn the Panel in a sub vi and this way I can just "create control" and have output parameters maniuplate vi, but if I update the vi, I still have to go back and create a new control for each vi under the control has changed.

  I tried using secondary and the creation of the control panel in a sub vi which is displayed in the secondary, but gives the undesirable consequence of not being able to view or change the settings of the control panel if the program does not work, as pristine as when sub-panels program does not work.

  Is there a another way to display the front panel of a Subvi next using a panel of void?  Is there a better way to propagate changes in a bundle in a series of vi?

  Yes a def type might help you and I would take the next step to make a strict type def if you want the look to be the same on all its bodies. You can also view this nugget on Type definitions for more idea about it.

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• How to use a secondary control and tab?

  I am the first time using the secondary tab control. I've seen some examples of shipping.

  The purpose of the VI:

  1 termpol1 on: should be on when the mouse is down (for VI without TITLE 4)

  2 termpol1 Off: the mouse is down

  Another screen should come to show:

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  Off 4Process2: should be on when the mouse is down

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  How can I do? How can I create reference to the main VI VI IE 3 Untitled.

  You open the vi FP before insertion of the vi It is by mistake because you will not be able to use overtime to a vi Panel already open so you can remove and move the mention vi Panel of sup and the run method of the vi then you must check the status of the vi to operate inside the void Panel.

• How to USE the information the user entered via BasicEditField or AutoTextEditField

  What BlackBerry watch document - step by step - how to extract the data that the user has typed on the screen using BasicEditField or AutoTextEditField. and use it in a Java program? If BB doesn't have a good document, here are all the samples you have found useful?

  I'm sorry, I didn't know that you had already gone through everything that is available.  And Yes, I was aware that the tutorials do not directly provide your requirement. I find that frequently samples and/or the provided code do not directly correspond to my needs and I therefore extend, it goes with the territory of being a programmer and is actually the part that I love - copy the code isn't fun and does not help his understanding.  Maybe you don't find so much fun.  Instead, please enjoy the following example.

  import net.rim.device.api.ui.UiApplication;
  import net.rim.device.api.ui.Field;
  import net.rim.device.api.ui.FieldChangeListener;
  import net.rim.device.api.ui.component.BasicEditField;
  import net.rim.device.api.ui.container.MainScreen;
  
  public final class AddDemo extends UiApplication {
  
      public static void main(String[] args) {
              AddDemo theApp = new AddDemo();
              theApp.enterEventDispatcher();
      }
  
      public AddDemo() {   
  
          MainScreen mainScreen = new AddScreen();
          pushScreen(mainScreen);
      }
  }
  
  class AddScreen extends MainScreen
                  implements FieldChangeListener {
  
      BasicEditField _firstField = new BasicEditField("First Operand: ", "0", 10, BasicEditField.FILTER_INTEGER);
      BasicEditField _secField = new BasicEditField("Second Operand: ", "0", 10, BasicEditField.FILTER_INTEGER);
      BasicEditField _resultField = new BasicEditField("Result: ", "0", 11, BasicEditField.NON_FOCUSABLE);
  
      public AddScreen() {
          super();
          this.add(_firstField);
          _firstField.setChangeListener(this);
          this.add(_secField);
          _secField.setChangeListener(this);
          this.add(_resultField);
      }
  
      public void fieldChanged(Field field, int context) {
          String firstFieldData = _firstField.getText();
          int firstValue = 0;
          if ( firstFieldData != null && firstFieldData.length() > 0 ) {
              firstValue = Integer.parseInt(firstFieldData);
          }
          String secFieldData = _secField.getText();
          int secondValue = 0;
          if ( secFieldData != null && secFieldData.length() > 0 ) {
              secondValue = Integer.parseInt(secFieldData);
          }
          _resultField.setText(Integer.toString(firstValue + secondValue));
      }
  
  }
  

• How to use the same control between two forms of Visual Basic 6?

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  Is this possible? If so, how can I apply it in my project?
  I tried to create a control array, but that did not help.

  Hello

  I suggest you to ask your question in the Visual Basic forum: http://social.msdn.microsoft.com/Forums/en-US/vbgeneral/threads

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• Sensor using IR Sharp 2Y0A21 to enter data in a labview program using mydaq

  Hello

  I'm working on a LabVIEW project. A portion of it (creating a sub - VI), I want to make use of a record international sensor (SHARP 2Y0A21), in order to measure the proximity of my hand from the sensor. I also have the myDAQ to help me with the sensor inputs. I want to make a program that turns a Boolean LED on when my hand is out of range of the sensor. Please guide me as to what I have to do to make it work. A few steps on how to make my program will be highly appreciated!

  Thank you

  Ksquared.

  Hi KSquared,

  This article by DeveloperZone, measure the Distance with myDAQ and Sharp IR proximity sensor should help you get started. Although the model of sensor used in this article is different, the specifications seem to be very similar suddenly look at the data sheet. If you follow this link, you should be able to acquire the output voltage of the sensor, filter and convert the voltage up to a distance. From there, the rest of your program should be fairly simple to complete. Feel free to post any other questions you may have about the article or your application. Hope you find the article useful!

• LabVIEW - device COM of VISA - how to use the Hex Protocol to receive data

  Hey everybody!

  I am fairly new to LabVIEW and data collection, so maybe it's a pretty easy question.

  I want to read the data from a device Extech Instruments HD755, it is connected via USB to a COM Port.

  I can see the device at MAX and I am able to open the Panel to test VISA.

  I simply do not know what command I send now, either, I know how to do a Google search for this (I tried several commands, but they did not work).

  I have attached the Protocol of Communication of Extech and my first try of a VI.

  Thank you very much in advance.

  Tobias

  Cannot open your vi, I lv2011

  Communication protocol does not say what commands to send. If no other information is either trial and error, or ask manufacturer for example in any language of the text, it's easy to order if that is the problem.

  I try something as attached as a first test, maybe you would need to send several commands (0x04 then 0x01) before it starts the transmission