Red Dots on Block Diagram

Hi this is probably a naive question, but what do the red dots where wires meet subvi's mean? They don't show up as errors, but I'm not sure what is wrong with the wiring.
Thanks,
Arthur J.
Attachments:
Example.PNG ‏15 KB

Avoid coercion dots in your own VIs and live with those in NI's motion library.
Modifying NI's library ? Your time and effort will probably be ruined by the next release.
Inserting Type Cast functions ? The code won't be more efficient but on the contrary will need more space (and become more difficult to understand).
I don't know why NI uses different type definitions but they might have a good reason. Please call them and let us know their answer.

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Red box Highlighting the entire work area of the Block diagram

I have a thin red box highlighting the entire work are of the block diagram...I've checked for breakpoints but dont see any. I run the code and after completion the entire work area turns black for a couple seconds and then the red box flashes and the continue button on the tool bar is hightlighted. Any assistance would be great
tks

This is indeed a breakpoint.
You should be able to clear it by selecting your breakpoint tool from the tools palette and clicking outside of your main code area.
When your breakpoint tool is going to set a breakpoint, the tool is filled in with black. When is is going to clear a breakpoint, it is not filled.
You can also search for breakpoints from the Edit menu Find function. Click the Select Object icon goto Others and select Breakpoint. This will find all your breakpoints. Sometimes they get set by mistake and you don't know it.
Ed
Ed Dickens - Certified LabVIEW Architect - DISTek Integration, Inc. - NI Certified Alliance Partner
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.

What is the best way to keep the block diagram/ front panel clean?

Hello,
I am relatively new to Labview so I'm not able to tell if I'm overcomplicating my programs or making my block diagram too cluttered. I was wondering if there were some ways to tell whether I could simplify my programming just by looking at it (perhaps only experience helps for these things) ?
I have attached my VI here. Currently, it has the capability to monitor the voltage and current from two motors. On display, you can see a indicator with the voltage and current values and there are charts toward the bottom that can display waveforms from different motors with a drop down menu.
The front panel is rather clean in my novice opinion, but the block diagram seems messy to me, just at first glance. I foresee a problem occuring in the future however. In the future, I will have to scale the VI to monitor 50 motors. All the programming will be the same as the one I have now, except it will have 50 indicators and unfortunately 50 times pretty much everything. I would like to avoid this, but I'm not sure how I could.
I am using a USB 6009. I am using its four differential inputs to monitor the voltage and current of two motors. In the future, I will be getting more DAQ units (25 total because 2 motors can be monitored for each DAQ). The new DAQs will help will help with more resource space, but I think complicate things with the additional potential of 24 more DAQ Assistants (as used in my code).
Thanks for any help you might be able to provide!

It usually is mainly experience that will teach you the best methods to make your code look pretty. I don't know anyone who is proud of their first from-scratch application. There are a few resources out there to help with best practices, like this group on ni.com, but you'll learn the most from your own development.
Your front panel looks great. FPs in general are really up to you. You can make it look as ugly or pretty as you want. When you have some duplicate controls and indicator groups, you should utilize clusters and arrays to simplify. You could use a little bit of cleanup in that regard, but not much. Also, personally, I hate reading red text unless it's a warning of some sort.
Your block diagram could use some cleanup in a modularity sense. You have a lot of repeated code, which you could consolidate in to a subVI that is used in multiple locations, or in a For loop. A general rule of thumb is to keep your block diagram within a single monitor. You shouldn't have to scroll. Your application is pretty simple, so it's hard to mess it up
Here are some specifics about your block diagram:
Right click your terminals on the block diagram and uncheck "View As Icon". You're welcome.
Duplicate operations on each waveform "(x*2-4)/16": create subVI and/or run the waveforms through a For loop.
You do a lot of 2-element arrays and then indexing. Just replace those with a Select node based on the numeric.
All of your code is running every time, including your property nodes at the bottom, which is unnecessary. As you learn LabVIEW architectures, you will learn how to bypass this with initialization and exiting code, but for now you should put a case structure around those for only when the motor numbers change.
I'm not sure how you're timing your main loop, but you should put a delay in there because you don't need the DAQmx node to be pulling as fast as your CPU will allow.
There are free intro videos you can watch to learn what NI would suggest in terms of coding and teach you some of the basic features and such. Here's a three hour course, and here's a six hour course.

Problème de blocage écran block diagram et front panel

Bonjour,
Je ne sais pas pourqoi, après avoir chargé Labview 2013 (après avoir utilisé LabVIEW 2012 SP1), dès que j'ai un block diagram ou front panel sur l'écran, je n'arrive plus à les manipuler après la première action.
Pour y arriver de nouveau, il faut que je réduise toutes les fenêtres LabVIEW puis que je réactive celle qui m'intéresse. Je peut alors faire une seule action puis il faut que je recommence l'opération de réduction-agrandissement.
Où est l'erreur, dans Windows (7), dans LabVIEW, dans une commande qui s'est mal faite ?
Le problème ne se résouds pas si je redémarre mon PC.
Peut-être faut-il que je désinstalle et que je réinstalle tout.
Quelqu'un a-t-il déjà renconté ce problème ?
Merci pour vos réponses.
JPV67

Bonjour et merci pour votre réponse.
J'essaie de me dépatoiller de ce problème avec l'aide du service support [(Reference#7411882) Phone Support E-Mail].
Malheureusement l'opération de désinstallation et de réparation qui m'a coûté 4h n'a pas abouti car j'ai toujours le même problème.
Pour simplifier cela commence par ça :
c'est l'écran d'accueil de LabVIEW.
Si j'attends quelques instants avant de cliquer sur CLOSE de la fenêtre WELCOME to LabVIEW, je ne peut plus le faire !
Même l'activation de la croix X de fermeture de cette fenêtre ne marche pas !
Pour y arriver, il faut alors que je réduise cet écran puis que je le restaure et seulement alors je peux fermer cette petite fenêtre !
Par ailleurs j'ai ce phénomène :
Je ne sais pas pourquoi, après avoir chargé Labview 2013 [Version 13.0.1f2 (32 bits)] sur Windows7, après avoir utilisé LabVIEW 2012 SP1 sans problème, dès que j'ai un block diagram ou front panel sur l'écran, je n'arrive plus à les manipuler après la première action.
Pour y arriver de nouveau, il faut que je réduise toutes les fenêtres LabVIEW puis que je réactive celle qui m'intéresse. Je peut alors faire une seule action puis il faut que je recommence l'opération de réduction-agrandissement.
J'ai en fait le même problème avec la page d'accueil de LabVIEW qui devient inactive après la première action.
Cela se produit sur le PC fixe.
J'ai une licence site Université qui a été enregistrée.
En espérant que vous aurez une solution...Cordialement,
JPV67

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I rented a movie from Itunes on my Iphone; however, i can't find where to watch or view it. The movie does not show up in my videos or movies yet ther is a blinking "1" in the red dot on my Itunes app on the bottom right of the screen over the "more" tab? any ideas on how to get to the movie?

ah, ok yes i did do that last night. I just did it again and relized that ther is a "Downloads" tab. I selected it and stated that there was a download error. I'm currently retrying it now. and it is now showing in my videos.
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How do I make the new voicemail notification (red dot) go away on iPhone 4?

I got a voicemail and listened to it and deleted it. now the little red dot over the phone icon is still on and won't go away. I have iPhone 4 and just updated to 4.3.5. I'm with TELUS in Canada. Any help would be apreciated.

why did you revive a thread that had been dead for two years? next time, make sure you're posting on an active thread.
fractalspace wrote:
I had the exact same problem. Iphone 5s on SpeakOut711/Rogers, Canada. There was no voicemail message, and yet the voicemail icon one the phone (dual spools thingy) stays on, regarless of how many times I check my voicemail.
I got it to 'reset' like this:
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- Wait for a few minutes.
- Check your voicemail from your cell phone by pressing (touching?) the voicemail icon which has the red dot (although it may also work if you checked via land line, but not sure).
- Delete your message.
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Close front panel but leave open block diagram

Is there a way to do this? I would like to have my block diagrams of a few subvi's open but front panels closed so my task bar isn't so cluttered. It's not a big deal, I was just curious
CLA, LabVIEW Versions 2010-2013

Chris_VH wrote:
No current way unfortunately.
A colleague and I actually just put in a product suggestion for this yesterday.
So if they fix this do I give you or them credit for the solution?
CLA, LabVIEW Versions 2010-2013

I created boolean references in my main vi block diagram and copied them to my sub vi front panel. when wire my reference in my main vi to one the input node of the sub vi the wire is broken. the error says its a class conflict why?

i created boolean references in my main vi block diagram and copied them to my sub vi front panel. when wire my reference in my main vi to one the input node of the sub vi the wire is broken. the error says its a class conflict why?

Expanding and clarifying what BJD said;
After you create the temporary sub-VI that BJD mentioned, open its front panel and copy the reference control that LV created when it created the sub-VI.
This reference control will be correct class etc that you need. Use the control to replace the original control that you were attempting to wire up.
The technique of "create sub-VI...copy" always works for me.
There is one more thing that you should watch out for.
The mechanical action of the boolean can not be set for latch action when attempting to read the value using a value property node.
Trying to help,
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Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

Block diagram wont open properly

I have written a big labview program for my application. I have been workig on it for 6 months. I keep adding the peice of code every day and save it with a new name every week.
At one point when I added some code into my program, the block diagram started acting weird and wont let me work on the program easily. For If I add an add function, it would take time and insert this function a couple of inches away where I pionted my cursor. Another issue was that; if I add a while loop or for loop or any other structure it would take time and one added it would add a couple of inches away and expand the main program window (Block Diagram) too.
since then, I started using my company's laptop to develop the code. I have no issues with that lap top till today.
But now when I tranfer this program back to my desk top. It wont open the Block Diagram and wont let me edit it. When I try to open the block diagram. the window appear black out and the LabView stops working.
Is this issure ralted to the graphics of my compute or any thing else? Please help me. Thanks
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There is a maximum size that a VI can be. What that exact size is I don't know. It does sound like you have one HUGE VI. If that is the case you really need to think more about using subVIs. It will make your program much easier to maintain and extend.
Also, rather than renaming it once a week you should consider using source code contol. Even if you are the only developer it is a much better way to manage your code. SVN is free and very easy to set up. If you do use source code control make sure you separate the compiled code from the source code. This is an option in the VI properties.
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Wreck of the Edmund Fitzgerald - Gordon Lightfoot

How can I open a vi and show the block diagram?

Hi,
I am opening an vi using "Open VI Reference" and "Invoke Methodpen FP", but I want to open the vi and show the block diagram, but I haven´t found any method (Invoke Method) to do that and any property.
Any idea?
Thanks!
Gracinda

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Thanks,
Dan

Urgent Help! How can i execute in the same block diagram two separate labview codes each one with diferent execution timings?

Dear All.
I have 2 application progrlams in the same block diagram. the intention is to use the 2 programs at different excuting time for different application, and each have stop and start button ofcourse i will have master stop. But when i run the program, it only works one program at time , that is the 1st block which i make it active only , when i tried to make active the second block it will not work, only works when i stoped the1st one. So, this it to request ur hlep how can i solve my problem. here i have attached some of my program.
Regards!
Solved!
Go to Solution.
Attachments:
2_block application.vi ‏14 KB

Usually you set up a task that has all the channels from all the modules configured. When a loop starts it reserves that task and the cDAQ can't be used by other loops unless you start and stop tasks.
You can have one loop acquire all the data and if you want certain channels to go to other loops you can use the producer/consumer design pattern. If you wanted a third loop you would add another queue and the third loop would dequeue that data. See attached.
Eric
Attachments:
prod-cons.vi ‏69 KB

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