Problem about data in "real time"

[XFly]

Hi steve,

Sorry, I wasn't working the last days. 

I tried to put a structure around the "write to measurement file" as you told me in your last message. But it doesn't work. Something is strange, I got 0 error but the file isn't created. 

To be more specific, if in the "write to measurement files" settings, I tick "ask the users to choose a file", i will have the answer and the file is created after, but I can't choose when exactly. So it's a problem. And in addition, I still got the same data in all lanes, as before. 

But when I don't tick this option, and chose just "save in a file" the file isn't created at all... 

[XFly]

About the error "5", I don't understand too...

I tried to change the location of the file, the name, etc. And nothing works. I never seen this error before, and finally I did a lot of test and saved lot's of file before this part of the code. So I don't understand why now, I got this error, cause I got exactly the same settings than before. 

[stevem181]

If you zip up a copy like you did before, I will look at it.

steve

[XFly]

I hope that I'll send everything :s

I hope that you will understand what's wrong with it ...

Thank you, again.

Maxime

[stevem181]

It looks like your vi has been drinking

The first thing I see is you used a while loop instead of a case structure around the Express vi.

The little true/false constant should be wire to the case selector. (Use to turn on/off logging)

You wont need the second stop button.

I'll do some more checking.

[stevem181]

Oh, there is an enable input on the Express vi.

There is no need for any extra structure.

Just a true/false connected to the enable input.

(The second one down on the left side.)

[XFly]

When you are talking about the "express vi" I don't understand what is this 😮 

This is the VI multi task ? :s 

Cause, I thought that's the block measure file, then I deleted the loop while and I put a loop condition. I don't know if you would say that... but I did it, and I got the error 5, again... 

Now about the second message, I don't find the enable input >< 

I got this  : 

But I don't know if it's what you want >< 

[stevem181]

Yes, I was talking about the "DAQmx Multi tasks" vi.

When I removed the while loop you added, and reset the target file,

the vi runs OK including saving the data to a file.

I am, however, using simulated hardware.

Actually I did get an error 5 once - I did have the file open, so it was expected.

Your implementation of the case structure should work. (Set a false to disable logging)

Although there is a simpler method available.

Here is the context help for the "Write to Measurement File" express vi.