Resetting a front panel button

I'm using a record button on the front panel, in "switch when pressed" mode. I run the VI, then press the record button. After stopping the VI, the button stays on. How do I make the button automatically return to the OFF state when running the VI the next time?
Solved!
Go to Solution.

Set the property node value to "False" it will get reset.
The best solution is the one you find it by yourself

Similar Messages

Automatic Pause (through program) and Manual Resume through front panel Button

Hi, I am trying to implement a system which measures voltage and current for a varying source voltage at varying temperature. The program acquires 5 pairs of voltage and current data. The issue here is that the source voltage is varied by manually changing the value of the variable resistor. What I would like to do is somehow pause the program automatically once the loop (for acquiring 5 V and I data pairs) has completed. Then, after the user manually changes the value of the variable resistor (and enters the new value through a front panel indicator), the user should be able to resume the program through a front panel button like in this example: https://decibel.ni.com/content/docs/DOC-10792
Is it possible to implement this in LabView?
In summary: I would like to implement a system in which the program would pause automatically after a condition has been fulfilled, and can be resumed through a front panel button.
Thank you in advance for any help and suggestions. I hope I made my query clear. I'm not sure whether attaching the program would help but I included it just in case
Solved!
Go to Solution.
Attachments:
Resistivity Measurement.vi ‏132 KB

Hi all! I've overhauled my program after learning how to create state machines in LabVIEW. I think I've managed to make it able to pause program execution by staying in the Initialize state if Pause After Measurement is set to True, only resuming measurement once the user has pressed the front panel button to Acquire Data. Attached is the code for the program.
Thanks to you all for leading me to the right direction (I hope)
I have other questions though for some other functions I want to implement in the program (which are not very relevant to the original topic title). Would it be better to start a new topic or continue the discussion here?
Attachments:
Resistivity Measurement v2.vi ‏159 KB

IPOD Mini front panel buttons not functioning

First of all, thanks for reading my message.
I have this wierd problem. My front panel buttons namely Menu, forward, rewind, play/pause and wheel donot work.
The thing that is wierd is that my ipod is still functional using the remote. Even when I am playing MP3s using remote, those regular buttons dont function. They look like they are dead, no response what so ever.
Since the remote has limited buttons I want my front panel buttons to work. Any inputs on this regard is appretiated.
P4 Windows XP

More details:
I can charge my IPOD.
sync it to itunes.
Hold works.
ear phone jack works.
In all my IPOD is in a state similar to what you have when you switch to "HOLD". Irespective of whether I swith the hold button or not.
P4 Windows XP

How can I stop and restart a .vi with a single front panel button?

Hey guys, a newbie here.
I have a .vi with a stacked sequence. The first few frames are hardware initialization and settings (LIN master node) and the data the hardware should transmit (frame response table). In the next frame there's a loop in which the hardware sends and recieves data (LIN monitor). If I want to change the initialization, settings or data values, I have to stop the .vi and restart it. I was wondering if there is a simple way of doing this with a single click (a button on the front panel).
An alternative would be to put another loop outiside the whole stacked sequence and then run it a single time with a push of a button (the inner loop should let the outer one restart), is that possible?
I hope I made any sense. Thanks for any suggestions.
Tomaz
Solved!
Go to Solution.

Ideally, redoing the code with a state machine would be the best way to go, if only so that you can add this powerful tool to your toolbox. That being said, wrapping your existing code in a while loop, with its own stop button to stop the program, will work if executing the entire sequence is ok. Where you might run into problems with this is if there is a step in the sequence that shouldn't be executed again, then it would require wrapping that sequence frame's code in a case statement that executes only the first time through. If you have the time, learning how to use a state machine would be a real benefit, really taking your LabVIEW knowledge to the next step, if you pardon the pun.
Putnam
Certified LabVIEW Developer
Senior Test Engineer
Currently using LV 6.1-LabVIEW 2012, RT8.5
LabVIEW Champion

Front Panel Buttons Does Not Work With scanjet 7650 using Windows 8.1

I am unable to use scan doctor and my front buttons since I moved to Windows 8.1 using the above scanner.

Hi m_heistand.
Please verify that the MF8580 is registered in the MF Network Scan Utility by following the instructions below:
Open the system tray in the bottom-right corner of the desktop and click the blue scanner icon.
Next, select the check box for the MF8500 series, and then click [OK].
Place the machine in [Remote Scanner] mode and scan a document using the MF Toolbox.
If you are still unable to scan after the machine is registered in the scan utility, we recommend that you contact us at 1-800-OK-CANON (1-800-652-2666).
Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.

Front panel of a vi pops up when i start my top level vi how can i stop this

i have a vi that whos front panel should display when the user clicks a front panel button(test instructions),
however this vi pops up when i run the top level vi. I can manually close the vi, but how do i stop this?
i tried modifying the Sub VI Set up properties, but that doesnt work.
Solved!
Go to Solution.

Hi jknapp,
As egraham has pointed out, you can customize the window appearance of your sub VI from the VI Properties. If you go to File » VI Properties, then under Category select Window Appearance and then Customize..., you should be able to control how the sub VI appears. Hope this helps!
Taylor G.
Product Support Engineer
National Instruments
www.ni.com/support

Is there a way to disable all vi front panels in Teststand?

I don't want any vi front panels to appear while my Testand program is running. My application uses a lot of vi's and I'm trying to avoid having to reset the front panel properties for each one. Is there a single option somewhere in Teststand to do this?
Thanks.

Hi kevmi2ca,
One could uncheck the Show VI Front Panel When Called box in TestStand for each VI call, if it were checked. There is no other control in TestStand to modify the Front Panel behavior of all VI calls.
This would be a great product suggestion to make at http://sine.ni.com/apps/utf8/nicc.call_me.
Message Edited by AEDavid on 04-26-2007 04:02 PM
Cheers,
David Goldberg
National Instruments
Software R&D
Attachments:
frontpanel.JPG ‏44 KB

Limit Front Panel Bounds programmably

Hi,
My front panel contains a picture control that fills the panel. I allow the user to resize the window and also apply zoom factors to it. At times, I have to limit the panel size to prevent the panel from being larger than the drawing area of the picture. This is easy to do when the zoom factor is changed, but I'm having trouble finding a good solution when the user reszes the panel.
Currently I am using the "Panel Resize" event to detect when the panel size has changed and if it is too big I use a property node to reset the front panel bounds. This works but is not ideal. Since this is not a filtered event, I can only fix it after it has been moved which means the user can see the front panel background momentarily before I can properly set the size.
Is there a more elegant way to accomplish this task?
Ideally, I'd like to programmably set a limit on the maximum front panel size such that as the user resizes then panel, it just stops at that limit.
Thanks in advance,
steve
LV 8.2 but soon 8.5
Help the forum when you get help. Click the "Solution?" icon on the reply that answers your
question. Give "Kudos" to replies that help.

Thanks for the responses so far,
Here are some examples to better illustrate the issue.
The first one (res_win) shows the default behavior with the picture set to fill the panel and to Scale object with pane. The picture control displays a circle that fills the front panel. When you drag the right side of the front panel, first you see some of the background, then the picture is resized and the background is covered. This is sort of ugly imho plus I only want the customer to see the circle, not the empty space next to it.
The second example (res_win1) uses the Panel Resize event to check for and limit the front panel size, but it still shows the background momentarily which I don't like.
Thanks again,
steve
LV 8.2.1
Help the forum when you get help. Click the "Solution?" icon on the reply that answers your
question. Give "Kudos" to replies that help.
Attachments:
res_win.vi ‏21 KB
res_win1.vi ‏36 KB

While loop with stop button within event structure locks up front panel.

I am not sure if this is a bug with my program or a bug within LabVIEW. If you believe that this is a bug with my program then I will post my program to be looked at.
The problem I am having is there is a while loop within an event structure that fires when a particular value changes. Once the "Activate" button is pressed the while loop within the event structure starts going with a polling frequency of 1hz (1000ms wired to the "wait till next ms multiple" vi). There is a "Deactivate" button that is wired to the stop control of the while loop and an outter while loop that resets the event structure so that the activate button is being listened to again.
Once inside the while loop, however, none of the button are responsive within the front panel. The VI continues to run, and only 60% of my CPU is being consumed, but none of the button or scroll bars work. The only way for me to terminate the program is with the "Abort" button next to the "Run" button. If I remove the event structure so that the while loop in question runs as soon as the program starts, the front panel remains responsive. I've inserted probes within the while loop and verified that it is not running prior to the "Activate" button being asserted, and it is running after the assertion of the "Activate" button with the expected polling frequency set by the "wait till next ms multiple" vi.
Can anyone help? Do I need to post my code?
-Nic

It is typically not a good idea to stall an event structure by placing loops inside event cases. What good is an event structure if it is not free to repond to events?
Have a look at some alternative solutions, such as in the following link:
http://forums.ni.com/ni/board/message?board.id=170&message.id=224817#M224817
LabVIEW Champion . Do more with less code and in less time .

I have a powermac dual g5 2.0 that wont start up.When I plug it in I get the click from the power supply. When I hit the start button, the white led on the front panel lights up and stays lit. No whir sound from the hard drive or the fan. No lights on the

I have a powermac dual g5 2.0 that wont start up.When I plug it in I get the click from the power supply. When I hit the start button, the white led on the front panel lights up and stays lit. No whir sound from the hard drive or the fan. No lights on the motherboard

The click usually indicates a big problem, but...
How to reset the SMU/PMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005) ...
http://support.apple.com/kb/HT1436
Earlier G3, G4, G5 models...
http://support.apple.com/kb/HT1939
Might be time to replace the PRAM Battery, 4 years is close to their lifespan, far less if ever without AC power, & can cause strange startup problems...
See which one your G5 has...
http://eshop.macsales.com/item/Newer%20Technology/CR2032/
http://eshop.macsales.com/item/Newer%20Technology/BAA36VPRAM/

Button to enable all checkboxes on front panel

I have checkbox controls on the front panel to select various functions of my VI. I would like to have buttons to check ("enable all") and un-check ("disable all") all the checkboxes at once, if desired. Preferably, I'd like to see the boxes activate (show the checkmark) prior to starting the VI -- like they do when you select them one by one. I am fairly new to LabView & am using 7.0 Pro. Any help would be appreciated.
JH

Here's a picture of the code. Pretty simple.
Message Edited by altenbach on 04-05-2006 09:23 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
AllOnOff.png ‏7 KB

How can i print an excel spreadsheet file by clicking a button on the front panel

i have designed a vi that logs data into an excel spreadsheet. i want to take print out of the file when the user clicks a button on the front panel. what to do if there is very large amount of data.

Preet,
Printing the Excel sheet is just an ActiveX method call to print the worksheet. To add data to the worksheet, you already have the reference, just call a print method. As for handling large amounts of data, that is a vague question. The data will print how ever you placed it on the worksheet. If what you mean is that you don't want to print out 25 pages every time, the print method has options to only print specific pages or ranges. You may want to play around with a sample spreadsheet to learn the printing options. For help on the ActiveX functions, make sure you have the Visual Basic help installed for Excel.
Randy Hoskin
Applications Engineer
National Instruments
http://www.ni.com/ask

Is there a way to create a button on the front panel that would automatically open the txt file data is being stored to?

I am saving data read from FieldPoint to a .txt file. Is there a way to create a button on the front panel so that when the user pushes this button it automatically opens the .txt folder in notepad? I want to bypass the user having to find the file in the computer in order to open it.

Hi jem,
I suggest that you break this up into three seperate questions and re-post to this list. That way you get more ideas from others that may have better insites than myself.
Re:the sysexec
The Sysexec will allow you to execute a dos command. This is the equivalent of going to
Start>>>Run
What you should do is find the proper DOS command sysntax that is required to open a text file in notepad or your favorite editor. Once you know what a good DOS command is, you should pass that string to the Sysexec.VI. The Sysexec has an input that allows you to choose if the code waits for the command to complete or if it should just start the program and let it run in the background. Sysexec will open its own window to run the command you speci
fiy.
Ben
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

How do I input data to a table on the front panel and stop the program immediately as button is pressed?

What should I do if I want to display on the front panel in real time the values from Polarizer #, P1, P2 and the last calculated value (P2/P1 * 100) called T% in a table or some graphical representation like that? What would I have to do? It could just be Polarizer # and T% if that would be simpler. I just want to let the user know the values in a list, spreadsheet or table as they go. One last thing is that I would like to be able to stop the program at any point in time as soon as the stop button is pressed. As of now, when the button is pressed it goes through the iteration currently in progress and then one afterwards. I want the program to end as soon as the stop button is pressed no matter what sequence it is. What can I do to achieve this? Could you give me an example or modify my program to show me this.
Thanks,
Steve
Stephen Coward
Northrop Grumman
[email protected]
Attachments:
EPM2000 almost done.vi ‏50 KB

Put a single frame sequence structure around your stop button and then wire from the error cluster going into the error handler to the edge of the sequence structure. Now your code will stop at the end of the current iteration. To see why this works, watch you code execute with execution highlighting turned on and review the section of the manual talking about "Dataflow".
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

How to save the data that a user has written in a table (front panel) by using a "press button"?

Hi,
I have the following situation. I need to be able to save the data I write in a table (front panel) when desired.
This allows me to modify, add new data, etc in the "Table" when wanted and to SAVE the latest information when wanted.
I need to save all the table data by using ONLY one button.
Thanks for the help!
Kind regards,
Amaloa S.

Hi,
Thanks for the feedback. :-)
Your answered helped.
In this case I need to save the Data into an ARRAY.
Now I have the following issue. I will try to explain:
Suppose that I have following:
1. Several GROUPS of Data like this:
    ER-1234
    ER-3245
    ER-4786
    ER-9080
2. Each GROUP has the following ELEMENTS:
    A, Bi, Pb, Sn, Sn, Cr, Ni, Ca, ...., Al
   So it would be like
    ER-1234: A, Bi, Pb, Sn, Sn, Cr, Ni, Ca, ...., Al
    ER-3245: A, Bi, Pb, Sn, Sn, Cr, Ni, Ca, ...., Al
    ER-4786: A, Bi, Pb, Sn, Sn, Cr, Ni, Ca, ...., Al
    ER-9080: A, Bi, Pb, Sn, Sn, Cr, Ni, Ca, ...., Al
3. An each ELEMENT has DATA that I need to save, BUT! that I need to be able to get by specifying the group and the element.
    A:
        2,3   2,4    2, 8,   2,8
         2,2   2,3    2, 7,   2,6
         2,1   2,6    2, 6,   2,7
         2,5   2,4    2, 5,   2,3
How can I save the ELEMENT "A" Data with the label of the GROUP and the ELEMENT so that I can recongnize it when I need to get the DATA again?
Thanks for the help!
Best regards,
Amaloa.

Resetting a front panel button

Similar Messages

Maybe you are looking for