Find First Error

[SercoSteveB]

What are the contents of 'Error Array Out' following execution of the VI?

[LordNobady]

I think B

I don't know why, just a guess

[crossrulz]

B

I admit I had to look that guy up.  Basically, it takes the first non-zero error code and makes an error out of it.  But if the error in is already an error, that just gets passed along.  So the real key here is noticing that your error 2 is a warning (boolean is false).

[LordNobady]

I am wondering in what cases this VI is used.

Also the help file is not verry usefull on this one. I still dont know wat is exactly is doing.

[crossrulz]

LordNobady wrote:

                       

I am wondering in what cases this VI is used.

Also the help file is not verry usefull on this one. I still dont know wat is exactly is doing.

                   

Open up the VI and it will be completely clear.

[LordNobady]

still I don't have a clue what it is used for. ( other then make difficult questions on the daily CLAD )

[SercoSteveB]

[LordNobady]

I do have to admit I like it. one of the reasons I am coming hire is to find new functions and technics. ( and of course to spot the data flow errors so that I don't make them that often. )

the questions I know the answer of without looking it up in the help file (  or testing it out ) are the boring ones.

[SercoSteveB]

LordNobady wrote:

......are the boring ones.

A tiny bit harsh.  I prefer the term 'less useful' myself. 

[adiveppa]

Ans Is C

[RAMESHB]

Answer is B.

[MrStevenUND]

B.  Open up the VI and take a look...

[mini09]

Answer is B.

First Iteration the error is visualized and array 1 is error since the second iteration does have error the first error is repeated adian, the third iteratuion is visualized and appended all three to an array.

[SercoSteveB]

Answer: B.  Nice one LordNobady, crossrulz, RAMESHB, MrStevenUND & gnshmrthy.

Not one I have used before either.  Nice explanation crossrulz.

[AuZn]

I haven't use this one either, but mostly because I didn't know about it. I can see where it is useful:

The are many VIs (especially in mathematics palette) that will return an error code instead of pass through an error cluster. I have always used "error code to cluster" vi to handle each individual error codes. But when there are quite a few VIs that return error codes, it is easier to use this VI to handle all the error codes together.

[HB-Sirius]

I really didn't understand the purpose of this function and in which situation I should use the 'Find First Error' function. LabVIEW already raises the first error automatically by skipping the upstream VIs, and when we use the 'Error Merge' function, it will apply its order ??????