Why the VI begins to break when I get the property nodes?

Similar Questions

• Error: The property node (arg 1) in .vi VISA set up a Serial Port (Instr)

  Hello

  I've seen people once they have gotten this error, but none of them really apply to my situation.

  Right now I use LabVIEW example code to read from a device manufacturer. This device is connected using a Tripp Lite USB adapter series (http://www.tripplite.com/en/products/model.cfm?txtSeriesID=782&txtModelID=2430) for the connection from the PC to device with RS232. The adapter works fine when using the software prepared in advance (not LabVIEW) given by the manufacturer and the COM port is seen by LabVIEW. When I run the program, I get the property node (arg 1) visa set up a Serial Port (Instr) .vi (I've also attached the VI but it's a standard VI I got of LabVIEW). I get this error despite the fact that I use the same COM port, who has worked with the manufacturer's software.

  I have attached manual of Protocol RS232/debit BUS (not sure if this applies) that requires the device. The device is a mass flow controller whose operating instructions is: (http://nemu.web.psi.ch/doc/manuals/device_manuals/Bronkhorst/917023--Operation%20instructions%20digi...

  I'm using LabVIEW 10.0.1

  Any help is appreciated

  Try to restart the PC and then try the LV version before trying other software.

  I have seen thrid party serial interfaces work on the first try but fail when you switch to another application. It was as if the pilot did not know that it was no longer the first process.

  Ben

• position in the property node is not updated in another while loop

  Hello

  I have a structure of the event in a while loop and I have a chart with 2 sliders on it. the chart is in the loop outside the structure of the event and it becomes a wave form when an event occurs.

  in a separate loop, I have 2 cursors cursor position property. I subtracted to get their distance. but when I move the sliders on the chart which is in the first, while the loop doesnot change the values given by the property nodes in the second loop

  is this something related to the structure of the event? don't needs real graphic to be updated all the time or is it ok if she becomes a waveform only on an event

  can someone please help

  Thanks in advance...

  The value of the variable "Stop 2"is in memory still "True" so on that a second (and resulting) running that your upper loop always ends after the first run.

  The display of "stop 2' LED is to be reset when you press the button"Get the waveform". making the False value.

  So reset the variable button after finishing two loops or before starting the two while loops.

  Tone

• The property node reference

  Hello guys,.

  Using the property node, I confused with the terminal of reference there. Can we establish a special reference to the control (button, for example), but obviouly I couldn't connect the button directly to the point of reference. I find an example about which attached in attachment. How can I creat something like that? So enjoy!

  Phyyu,

  VI server references follow the structure of object-oriented class. A VI server reference can refer to a wide range of objects, such as a control, etc. variable indicator, VI. Server of VI References can be as strict or not strictly typed as you wish. A control/light specifically made reference refers to a command that you pass to it. You can request to be more rigorous by right clicking on the reference, and using menus to select the class that you want to reference. A tree of possible class might look like this: Server VI > generic > G object > control > Array. Now this reference requires a pointer to a table control and will not accept any other type of control. If you use this reference control to create a property node, the properties will be specific to the array class.

  A refnum is simply a numeric value that refers to a place in memory. Reference and refnum are used somewhat interchangeably in LabVIEW.

  I hope that answers your questions! See the help files of LabVIEW for VI server references to learn more about them.

  Kind regards

  Alexandra Valiton

  Technical sales engineer

  National Instruments

• How can I control the elements in the graphic palette (profile line) via the property node?

  Hello everyone,

  Is it possible to control the elements (graphic palette in the profile of the line) via the property node?

  Greetings zapfle

  In general, you must balance only Min/max property, then you can "zoom and Pan" by program:

  

  Andrey.

• graph of waveform of filling via the property node

  Hello

  I want to fill a graphic waveform spirit multiple waveforms by programming. This means, the graph is the main VI, and use it in an another vi reference chart. Firstly I have to solve the correct reference waveform curve, then I use the "Value" property node The value must be the value of type variant, should be no problem. But the property node works only with table 1 d and not 2D.

  How can I fill it with table 2D programmatically? I use LabView 8.6, see attached example.

  Mitulatbati

  Hi mitulabati,

  You must specify the data type that you will be feeding to your chart, the default type is an array of 1 D.

  To do this, connect an empty 2D array directly on the graph, it will change the input to your waveform parameters and now the property node will accept this new data type.

  Hope this helps

• Display the property Node error 1077

  I created a vi with several analog inputs (up to 20), and I want to be able to turn on and off on the front panel plots. I currently have this case structure configured to go through each entry (i n), and the front (LED buttons) can be activated and deactivated to choose which plot to display:

  

  Turn work, the plots but I get this error message:

  1077 error has occurred to the property node (arg 1) in NetworkAnalyzer_UpdatedDAQmx.vi

  Possible reasons:

  LabVIEW: Value of property not valid.

  Property name: field Active

  All solutions? Thank you.

  Are you sure that the number of elements in the array of Boolean is the number of locations that you did? This error indicates that you have more items that you have drawn in your array of Boolean.

• Line break in the name of the Enum element? (no further questions on the property node)

  I don't know what is the meaning to allow element enum with line feeds them names (\n):

  

  It is easy to do by directly editing the control over the public Service or a constant on the comic, but it's somehow not if you use the context menu 'modify Items... "who jumps to the top of the Properties window.

  As a subsidiary question, if I try to do it programmatically:

  

  It fails with this error:

  which simply means

  That's the script as an indication only (never used script before)? If I disable the "Show script methods, etc." option, it is still available though...

  This type of property node is useful if you use LabVIEW to write LabVIEW.  The main example of this is the DAQ Assistant, but things like the right frame click JKI also do.  You usually encounter when writing automation tools development.  For example, this particular node would be useful in a tool that converts a task manager based on a string to an enum-based task manager.

  You can find the full properties of each property and method using LabVIEW.  This includes whether or not it will work in the execution or change environments.  The enum is an interesting case that confuses many.  Modification of strings of the enum of the code changes.  Most people who want to change the strings of the enum runtime should use a ring or a listbox, instead, since you can change their strings at run time.

• Graph plot legend colors Signal not updated when mixed with the property node

  Hello

  We try to put the colors of the trace of a graph of Mixed Signal using a property node. Although we can change the color of the data in the field correctly, the colours of the plot in the legend do not change until some apparently unrelated operator action is performed (for example, to resize the window or by double-clicking a field name).  Waveform to XY charts don't seem to have this problem.

  Anyone know a work around?  I think I saw a similar topic on the forums earlier, but I'm sorry that I am unable to find it now

  See attached vi.

  Thank you

  -john

  I should probably have joined the last post of VI, but I have has been a thread of error between the two loops.  I also deleted the text you had so I could see the I need to press the button.

• How to set the property node maximum xscale for several scale XY Chart

  Hello

  I use a graph XY with three X axis and three scales of axis Y to draw the three sets of data. This works well.

  What I do now is to set the Xscale.Maximum property node for one of the x-axis (the other two autoscale). If I click right in the (Create Blockdiagram; Node property; X scale; Maximum) I can not choose what x-axis I want to put the Maximum for.

  So my question: how to select a specific axis allows you to set the XScale.Maximum property node when having several axes?

  Thank you for your help, any suggestions are appreciated!

  Hello

  After some more research and experimentation, I found that using the scale property X Active I can determine/set for which the XScale.Maximum Xscale is used.

  This solved my problem.

  I hope someone else can save themselves a few hours with this thread!

  Thank you

• Unable to modify the property in the property node

  Hello

  I am configuring a DAQmx routine where I record multiple analog channels. I am able to create the routine, but I read that there are some problems with multi-channel sampling (ghosting), so I wanted to avoid this.

  How to eliminate ghosting of my measurements? :

  http://digital.NI.com/public.nsf/WebSearch/73CB0FB296814E2286256FFD00028DDF?OpenDocument

  Furthermore, who directs you;

  How can I increase without delay using NOR-DAQmx or NOR-DAQ traditional (old)?

  http://digital.NI.com/public.nsf/WebSearch/65E7445DB1AA5DC586256A410058697B?OpenDocument

  However, when I try to use a property DAQmx Timing node, I am not able to change the property (see screenshot). I tried right click and left click and clicking on everywhere. I think that there is something I could not understand, but pointers would help a lot! Chaning between read/write does not help

  Never mind! Found the solution in the knowledge base

• How to change the value of the array element by using the property node

  Hello all :)

  IM using a table in the drop-down list box. the size of the array is not fixed.

  I want property strings [] from the drop-down list box to enter text in selection, but since I placed it inside the table im unable to use this property.

  I used 'arrayelem' reference property and property node connected to it but got no strings [] in the selection.

  so is it possible that I can use property strings]

  
  

• Error: The property node (arg 8) visa to configure the Serial Port

  I'm trying to control 8 USB to R232 via a HUB of 10 ports Tripp-Lite (model U222-010-R) and do not have consistent results.  Just after rebooting my computer, I have no problem in running the following program: (I tried to download the VI directly but without success, so here's the extract)

  

  I made sure that the COM ports that I select are that one is available on both the Device Manager and in the NOT-MAX.  But after awhile, it does not work or if the HUB is unplugged and replugged in (even if the names are correct and up-to-date in devices and NOR-MAX Manager) I get the error code "property Node (arg 8) visa set up a Serial Port (Instr) .vi" I want to be able to see these ports consistantly more without having to restart my computer all the time.  Is there a better Setup for this? The previous installation of the computer has a PCI card for it and we have not had any problems with the code, but are facing problems with our upgrade.  The old computer ran Windows XP and had cards PCI and the new computer that I am using a Windows 8 and the USB HUB.  Thanks for any help you can give!

  Mr says:

  Jeff,

  It is a one off lines from specifications Tripp-lite:

  -On bus power, 500mA from the USB 2.0 computer port is shared between hub ports

  This would be in support of what I need or not necessarily?

  -Mr

  No! That's the 50mA by port not 500mA.  an order of magnitude full powered USB (if you want reliable - if you want real problems which appears irratically each time only and is a headache to track down which would)

• Why it's start to appear when I get new updates. ?

  I click on the button set to day and when I restart message is beginning to apear:
  "There is an IP address conflict with another system on the network"
  Help, please! What should do?

  Hello

  Assuming it of other PCs on the network and the PC to access internet through a router broadband any...

  1. make sure that all PC's are on get an IP automatically (look at the TCP/IP properties for the network card in each PC).

  2. turn off the router and the PC

  3. turn on the router, wait a few minutes

  4. restart the PC

  If your network is different from my post assumptions please come back with details before trying what whatsoever.

  Tricky

• Why the RAC node link a virtual IP address of a cluster server?

  We have a RAC 4 nodes 10.2.0.3, who has had only one node powered off for a few weeks. We notice that the VIP of inactive node appears in the ifconfig of node 1, linked on eth0:2. Yesterday, I removed it using delete ifconfig on eth0:2. I checked in ifconfig and, indeed, the link was gone. When three other RAC nodes rebounded last night the VIP associated with the other server had, and more. How? Why?
  
  Published by: SteveInTallyFl on April 16, 2009 16:14 for more specificity.

  Hello

  It is quite a thread on this topic:
  Re: VIP does not bind PORT on other nodes, when I node 1

  Thank you
  Markus