How do I open and close vis programmatically?

I want to open and close a vi with a switch control. What is the best way to do this?

Probably the easiest way is to utilize vi server operations. Vi server will allow you to open a vi and close a vi programmatically. This is a great example that is built into LV. THis should give you some ideas. Hope this helps.
BJD1613
Lead Test Tools Development Engineer
Philips Respironics
Certified LV Architect / Instructor
Attachments:
VI_Server_-_Changing_Another_VI's_Properties.llb ‏625 KB

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How do I open and close VIs from within a VI?

Ladies and gentlemen,
I would like to use a VI to open and close other VIs based on user input. Example: The first VI will have text that reads: "Does the car have heated mirrors?" There will be two buttons: one for "YES" and the other for "NO."
If the user hits the "NO" button, the current VI will close and a similar VI will open that asks the user the next question, "Are the mirrors lighted?" "YES" or "NO..."
If the user hits the "YES" button, the current VI will close and another will open that will tell the user to "Activate the heated mirrors" and press a button that will say "NEXT." At that point, that VI will close, and in two minutes another VI will open and ask the user "Is the driver's side mirror hot?" with another set of "Yes" or "No" buttons. If the user presses "YES" we will have verified that the heated driver's side mirror is working properly and store that information somewhere . If the user presses "NO", the VI will close and another VI will open with some kind of repair instruction and a button that says "RETEST" that will rerun the heated mirror test when repairs are completed.
During the two minutes we are waiting for the mirrors to heat up the program should move on to the next question: "Are the mirrors lighted?" "YES" or "NO..."
Does anyone know how to manipulate VIs in this way? Please help!
Drew

Instead of opening and closing vi's, just create one main vi with a state machine architecture. Search for examples on state machines to get a basic understanding of them. This is pretty complex so I have written an example of how this could be accomplished. The trick part was the 2 minute timer (my vi is set for 5 seconds for quick testing). Each state produces a question, and depending on the answer, the next state is inserted into a queue. You can add more states for more questions and answers. Notice that the boolean buttons can be hidden if you just want to show one button (like Next) instead of two buttons (Yes and No). Study the vi and let me know if you have questions.
- tbob
Inventor of the WORM Global
Attachments:
Q&A.vi ‏166 KB

How can I open and close private browsing using an IPAD mini in IOS 7?

How can I open and close private browsing using an iPad mini in ios7?

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How do I open and close a database ?
How do I retrieve values from a database, is it retrieved by using sql statement ?
Thank you

How do I open and close a database ?For a start have a look at the tutorials on this website or flick through a JDBC book. Sun's JDBC Tutorial and Reference 2nd ed. is pretty good.
http://developer.java.sun.com/developer/onlineTraining/Database/JDBC20Intro/
How do I retrieve values from a database, is it
retrieved by using sql statement ?Yes, you talk the database with SQL
If you are still having problems, come back
Richard

How to automatically open and close an application at specific times?

Hi,
I am trying to figure out how to open and close an application at specific times.
I have set iCal up to open it no problem...however, the application needs you to click yes before entering into it upon boot.
How do I do this and close the app. I tried creating a workflow in automator, but iCal simply opens the workflow and does not play it. This also does not solve the issue of needing the 'yes' button to be clicked.
Kind regards,

Hi,
I am trying to figure out how to open and close an application at specific times.
I have set iCal up to open it no problem...however, the application needs you to click yes before entering into it upon boot.
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Kind regards,

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[Moved to Spry forum by moderator]

Arnout,
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Open and close visa inside a while loop

Hi,
I need to read a position from a control unit device continuously or even by click a button, for this I have to put "visa configure serial port" and" "visa close" inside a while loop. Dose it make any problem?

You shouldn't need the VISA Event nodes. Get rid of those.
Why are you using Concatinate String just to build up a constant. Just create a single string constant. It is a lot cleaner.
Is the antenna constantly sending data to you or only when you request it?
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines

How to open and close period?

Hi all,
How can I open and close Period in MM module?
thanks

Hello,
First of all read SAP Note 487381. T-code MMPI. If you don't have a backup or a request saved on development client with the previous period, you may try to modify the record on the table MARV (don't try yourself - discuss with a specialist who know your SAP system). If there isn't any records it won't be a problem!
Good Luck!

It's better or necessary open and close communication with instrument every loop?

I must communicate with my instrument, but I must change its value, for example temperature, every loop. See the Figure to understand:
I think that it is better if I open communication with my instrument out of while loop so I many operation: if I put Open VISA in While loop I open VISA session every loop, instead I think it is not intelligent. Can I open VISA SESSION out of the while loop or it is an error for EXCELLENT LABVIEW VI and I must open and close VISA SESSION every times I must talk (and set) with instrument? What is the better way?
Message Edited by Michelle1892773 on 02-22-2010 02:00 PM

Something like this?
I do have to say, i don't know what is happening in the false case of yours, but if nothing happens with the 100 that is wired to the shift register, once you enter the true case, the value in the shift register will always be great than "i". You might as well do what I have done then. However, if something does happen with that number in your false case, then keep it the way you have it.
That being said, why is the condition there to see if it has looped 100 times before doing the visa write??
Message Edited by for(imstuck) on 02-22-2010 04:45 PM
Message Edited by for(imstuck) on 02-22-2010 04:46 PM
CLA, LabVIEW Versions 2010-2013
Attachments:
visa.PNG ‏13 KB

I have macbook pro. The pinch open and close is not working in firefox 4, but works in safari. How can I get that feature back

To find pinch open and close and how it works in macbook pro go to the apple icon. Open system preferences and the choose trackpad. Each item is illustrated.

You can restore the zoom feature by changing the values of the related prefs on the about:config page.
* browser.gesture.pinch.in -> cmd_fullZoomReduce
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* browser.gesture.pinch.latched -> false
*http://kb.mozillazine.org/about:config
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How to open and close posting period for both material , n invoicing

HI
how to open and close posting period for both material , n invoicing , AM NEW TO SD , SO ALL DOUBTS I DO POST IN HERE PLEASE DONT MIND

Hi Sunaina
Period Open T.code: MMP1
Period Close T-Code: MMPV
Automate the opening of MM periods
How can you automate the monthly opening of MM periods (transaction MMPV - program RMMMPERI) with
SM36?
RMMMPERI accepts a period/year or a date.
If you enter a date the period is derived by it.
1. create a variant and check the attribute 'selection variable' for the parameter date. Then click the button 'Selection variables' and set the current date. Every time this variant is used the parameter DATE is filled with the current date.
2. create a job for RMMMPERI with the variant created in the preceding step. Set it as periodic.
If you're not using a fiscal year variant simply schedule it as monthly (to be executed the first day of the month).
If you are using a fiscal year variant you'd have to define a calendar with only the first day of each period defined as working
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Another possibility:
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Reward if useful to u

How to restrict S_ALR_87003642 - Open and Close Posting Periods entry/updat

How to restrict S_ALR_87003642 - Open and Close Posting Periods entry/update for certain group of users
eg. for Subsidiaries to openr/close periods of their own company only.
Refer to my screen, Company 1010 and 1060 is for Head Office while 1210 is for our Malaysia Company. How to restrict my Malaysia Company user to open and close only for 1210 and cannot perform any change to other Company.

Hi,
I guess you can use company code itself. Talk to your basis guy or else if you have some expertise & Authorization try out PFCG.
Regards
Santosh Hegde

Visa Open and Close on every iteration of loop

I have noticed that when you open the front panel of the Instrument I/O Assistant, the diagram starts with a visa session open, sets timeout property, writes, reads, parses data and ends with a visa session closed. If I were to place this into a while loop the visa session would open and close on each iteration of the loop.
Is it common practice to open and close the visa session on each iteration?

No you would not want to open and close that often. If you want to use the Instrument I/O assistant what I would do is configure it the way you want and then save it under another name so you can open the block diagram. Pull the VISA open and close outside of your loop.
Using LabVIEW 2010SP1 and TestStand 4.5

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Safari is slow to open and close. It also slows down other apps while it is running. How can I resolve this issue?

From the Safari menu bar, select
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From the Safari menu bar, select
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https://support.mozilla.com/en-US/kb/Using+the+Adobe+Reader+plugin+with+Firefox
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How do I open and close vis programmatically?

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