ImageViewer BackColor property during execution

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• MCListbox property node does not during execution

  Hi I have problem with MCListbox property node. I wanted to fill the column with names and elements in the table.

  Initially, the program runs smoothly under development without error time.

  However when I she ran during execution of the table cannot be completed and produced by mistake. The error that says that "[get article] Config Registry.vi data: invalid object 0.

  I'm not sure what the error means that I need to find the bug in the moment of the execution because it works very well under development time. I found MCListbox property node errors after the names and elements are tempted to be filled in the table. I don't know why there are errors to the difference in time of development. See attachment below

  

  Thanks please advise

  Clement

  You read data from the configuration file? How do you get the path that it? You know that there is a difference (http://digital.ni.com/public.nsf/allkb/FD7DE8BC8FFC256C862565F4006BE363) between the path to the runtime and development environment? What LV version do you use? There are some recent changes. http://forums.NI.com/NI/board/message?board.ID=170&message.ID=473427&jump=true

• How to change the frequency of sampling DAQmx during execution?

  Hello guys. I'm using LabVIEW in the measures of the frequency response function. My application requires the sampling rate to change according to the frequency of the signal during execution.

  I tried to do it with a "structure of the event" and it works well when I change the rate manually via the front control but it backs do not work when I set up the sampling frequency to vary automatically (just a frequency sweep). Photos below:

  Why not the structure of the event feels the change in the value of "rate"?

  Thanks in advance for your help.

  Lucas

  Hello

  In "automatic mode" to change the sampling rate, the calculated rate is written in the local variable (as illustrated in the code).  Structure of the event does not change value in the local variable as an event.

  In order to make the structure of the event to recognize the change in value of an indicator such as event: write the new value to the property "Value (Sgnl)" corrosponding node to rate indicator (see figure below).  This will make the structure of the event accept the value change in the indicator as event.

  Note: Use architectures such as producers and consumers for such applications, which makes the application readable and expandable.

  See rear queries if any.

  

• What would cause a constant changes during execution typedef enum

  Hello

  In my program I had a problem with a constant of enum for a selection of the tab value change during execution.  The enum is as part of the initialization of the program and when I step through the loop and then you see the property node of the climax to the value tab and in the next step of the enum changes its value.  I'm under LV 8.0

  Any information will be greatly appreciated.

  Gary

  
  

• Graphical evolution of waveform changes during execution

  Hello

  I'm just started learning Labview graphical programming. It's so interesting that text-based programming.

  The first issue is of course acquire analyze and display. But on the screen how to change the X axis and Y, scale of the axes during execution values.

  Maybe you should b a little more clearly what kind of values you want to change. (range, offset, multiplier, etc..)

  For example, to change the interval-y, yscale user property...... minimum or maximum range. The interval-x is a little more complicated, because you're dealing with a graph, when the x offset the changes automatically the history buffer is updated.

  Of course you must also make sure to disable autoscaling, else it will be for the next update.

  You can also change the formatting of the x axis. at the moment you show zero decimal digits. Also an axis 'style' with a few values more would be better.

• How to hide the ADF table during execution

  Hi all

  I use Jdeveloper - 11.1.2.4.39.64.36.1 version

  Is it possible to show only the tables with associated in the same lines and hide tables with no record.

  For ex: Let's say that at the time of the design, there are three related data tables with the diagram below.

  Table 1

  Table 2

  Table 3

  However, during execution, there is no record for 'Table 2', but the table 1 and table 3 have records associated with them.

  Is it possible to hide the table 2 and get the following provision -

  Table 1

  Table 3

  According to the schema, table 2 should hide, and table 3 should get reordered under table 1 directly.

  Best regards

  Ankit Gupta

  Hello

  You can set the property visible from the table to something like #{bindings.. estimatedRowCount gt 0}

  Arun-

• Deactivation of BPEL/BAM surveillance during execution

  Hello
  It is possible to disable/enable the built-in BPEL monitors to BAM (which uses the Express data objects of the monitor) during execution? I've not found properties or mbeans that can be changed in the MS for that. My other thought was to try to change a property/preference on the BPEL component via the composite.xml file. However, any changes made to the property "configuration.monitorLocation" through the EM does not get picked up. In addition, I was going to try to change the property 'enableProcessSensors' referenced in the Guide of the developer of the SOA (11.1.1.4 - section 50.3.3), but the property is never set in the composite.xml file as it says in the guide. I've tried turning on and off of the monitoring through the box several times as suggested by the guide (and recording in between), but the property is never created in the composite. Please let me know how manually set this property if it is indeed available.
  Please let me know if the disable/enable is available during execution.
  Thank you
  Ben

  Hi Ben,

  If you go to the SOA Composite in the EM there's a button called settings where you can choose to toggle monitors and sensors BPEL runtime.

  See if it helps.

  Published by: Arun Perron 7 Sep 2011 09:35

• masking steps during execution

  I have a sous-suite that I point the user to when asked to isolate a card failure.  To give them some flexibility, I got a popup that gives them a certain number of options (see attachment).  I have an m.o. that indicates the individual steps these select/run (i.e. '1' or '3' in the png).  Control flow (denoted by '2') is the noise they don't really need to worry and may / will cause confusion (and possibly problems for me if they select them accidentally).  Is there a way to hide these measures flow during execution control so that the user sees '1' and '2' (and other similar 'valid' selections?

  If there wasn't a need explicit to have the flow control logic, then I'd be tempted to compact all in the post of the Popup Message action.

  

  By setting the Popup Message Action to go to the step, , use Custom Condition (TRUE):

  

  And by using the following Expression:

  Step.Result.ButtonHit == 1? RunState.Sequence.Main ["MR_RPack_R55"]. UniqueStepId:
  
  Step.Result.ButtonHit == 2? "" "RunState.Sequence.Main ["End_PCI_Isolation"]." UniqueStepId:
  
  Step.Result.ButtonHit is 3? RunState.Sequence.Main ["MR_R103"]. UniqueStepId:
  
  Step.Result.ButtonHit is 4? "" "RunState.Sequence.Main ["PCI_Intf_PT"]." UniqueStepId: «»

  It should be appropriate level following the Popup Message.

  (SequenceFile attached).

  I hope this helps.

  Charlie

• Why get error during execution the FPGA VI?

  Hello world

  I have a lot of sense of wrong during execution of a program that has been correctly executed previously. I don't know what I did wrong.

  Now, whenever I run this FPGA VI, I get an error (in the attachment). And, then runs the FPGA VI, but it does not give the data required those he supposed to give as output.

  Any help or recommendations would be appreciated also.

  Thank you.

  Hi auree123,

  There are a few reasons for this error
  may occur.  Could you tell us more about what's going on?

  You are
  I get this error when you compile and if so, at what stage?

  It looks like
  as you may be running it in Interactive Mode, which means that you are viewing
  the front of the FPGA VI on the development computer that you are running - is
  that correct?  If so, you could try to create a VI on your host
  Open a FPGA reference and communicate with the FPGA programmatically rather than interactively.

  Thank you

  Morgan S

  Technical sales engineer

• button conrol min and max range option during execution

  Is it possible to change the window button conrol min and max Beach setting during execution?

  Thank you very much Nick.

• Edit/delete/add scene coordinates in the table during execution

  Hello world

  I managed to build table allows you to store and record the coordinates of the stage and remind to control steps. However, I need change/remove/add details of scene during execution. I also need to allow the user to directly edit the coordinate from the scene of the array. Wondering what someone knows what is the best way to do it? Or is it better to use the matrix or Cluster? Thanks in advance.

  Best regards

  Han Yen

  Han Yen wrote:

  Thanks much altenbach for all the advice. I tried to do a table 2D control. I've been playing with table in the control. However, I still can't find out how can I detect that I change the data in the table 2D with the more recent issue during execution? How can I then update my current table with the latest data?

  Well, the 2D table is updated immediately and you do not all the other tables.

  Do you mean that you want to update XAbs, etc. where the just changed line is already selected?

  In any case, here's a simple project, perhaps it will give you some ideas. I would recommend using also the tables for XYZPos, entrances etc. and the XYZabs. This simplifies the code because you reduce the number of terminals and table operations.

  Let me know if something is not clear to you.

• Disable the extended FIFO FPGA target during execution

  Hello

  I use a FIFO extended target in my FPGA to constantly calculate the derivative of a measured value (dB/dt). Thus the FIFO stores all values during time dt. This means dt determines the number of items in the FIFO and dB is determined by the actual value less the oldest value in the FIFO. It works well when I initialize with the code in figure InitFIFO.

  But the FIFO of compensation is not possible (see figure clearFIFO). In the while loop if "reset dB" is false, as the new value of B is written on the FIFO, then the oldest value is read from, for the number of items in the FIFO remain constant. To change dt during execution, I need to clear the FIFO and initialize it with a new length (number of items). I tried the next loop, but it does not work. The FIFO does not initilized with the elements. The length is zero and the loop counter for (#deltaB Length2) is 0.

  What I am doing wrong? Is there a better way to erase a FIFO during execution in the FPGA? I'm now stuck for 2 days with this problem and looking forward to any idea or suggestion.

  Thank you very much. Best regards

  Andy

  Hej,

  Thank you for your response. You were correct, that deltab FIFO length was 0 because the defalt value was zero. The problem is that in my host vi on the RT system I put DeltaB FIFO length in a loop of high priority and as you can see when I restart the FPGA, DeltaB FIFO length has a valid value (the code in figure 1 works well with a local variable of DeltaB FIFO length in the FPGA). But the variable to set the variable "reset dB" is under the control of the loop of low priority of the host vi. And there, I had an entry DeltaB FIFO length unwired.

  So, I learned that a control FPGA read/write unwired sends a '0' or resets the variable to its default value in the FPGA. I assumed that nothing is transferred and the last variable is retained if you let a control read/write unwired. Now, I learned of this stupid error!

  Thanks a lot again!

  Andy

• IMAQ, zoom to fit display control disappeared during execution.

  As in the title. The menu is impossible to call during execution of the control display Imaq. This has happened after the compilation of the code.

  Any idea why this happened?

  Francesco.

  I had this problem before.

  The solution is not very pretty, but it can be found here: http://forums.ni.com/t5/LabVIEW/Missing-quot-Zoom-to-fit-quot-in-application-EXE-build/td-p/905681

  Birgit

• Enter the mathematical expression during execution

  Thanks to LabVIEW 7.0.  Is there a way to enter a mathematical expression during execution?  I am collection of bytes of a device in which the user may have to configure the runtime.  For example, if a package returns 2 bytes, i and j, the user wants to run an equation on the bytes as y = 200i - 3j.  The equation could be anything.  I looked at Expression nodes and formula, but it doesn't seem to be a way to get into the equation by program.  Anyone has any ideas on this subject?

  Thank you.

  I opened LV 7.1 which is the oldest I have.  In this version, the mathematics are in the palette to analyze it.

  In the functions palette click on search and type "parse" or "formula". These searches are formula several screw analysis

  If you have only the Base of LV version, you don't have these screws

  Lynn

• modify VI during execution

  Dear users of LabView,

  I have a fairly general question about the development of a project, which requires a continuous control of the material. To be more precise, I develop LabView control and DAQ software for calorimeters in high volume in the last 2 years. Such a system requires several PID controls, and it has many subsystems. Because of the large heat capacity, it takes about 3-4 days to launch the system. So if I need to edit for example something in control of the final of a specific subsystem, I stop the LabView code, I have change the specific part, I restart the system, I wait for 3 days, and then I can see the result of my changes.

  My question is the sort of General: what is the good, let's say "best practice" to avoid such a dead time?

  Is it possible to change a VI during execution?

  I understand that if I run the independent screw, that dealing with subsystems, I could avoid this problem. But if I already have a compact 'main' VI, including all the subVIs, what can I do?

  It would be nice to have a sort of "hot swapping" feature in LabView, so during the execution of main VI of my project, I could change the Subvi that I want, and when it is ready to activate, the runtime would swap with the old version.

  Thanks for the tips and advice!

  Best wishes

  Hello

  It all depends on how works your vi...

  The only way I see is to use dynamic calls: a vi called dynamically is editable even if appellant vi is running.

  If you change the callee until the caller calls the vi vi.

  Is how the appellant under vi (this includes the values of connectors and run the VI):

  

  Best regards