control two servomotor and stop not together

[Gerday.M]

Hi everybody,

It`s my first step on the NI forum. My apologize in advance if I`m not in the right section 🙂 but I think it`s the good one.

To resume my situation in two words, I`m making my intership for the end of my studies. I`m ingeneer in biochemestry and i have to work on labview.... so i`m not very good but i get by in this software (to be honest I like this).

Anyway,

With labview, I have to control two servomotor to open two gate but not together. I open the gate in the same time and then I have to close one and then the second. (or in the other sens).

My problem is that when I close the front gate and then the behind door everything it`s ok. But when I have to close the behind gate first I can`t close the other gate. And I have an error message (furthermore, arduino and Labview are desynchronised, it`s very boring)

I`m sure that my problem come from the end when i have to close the motor. I join my software and one picture.
I didn`t find others solutions to close the arduino card after everything. Maybe I can tr with one boucle while like in the beginning of my code. But I don`t want to add an other button.

Thank you a lot for your answer.

PS: I`m french and I`m Learning english.... so maybe it`s not perfect ^^

[Gerday.M]

I tried whit one boucle while.

(I was focus on my idea but I`m not oblige to put on button stop)

But it`s weird because everything works when I launch the software with the " higtlight execution" but without I have the same problem than before.

I don`t understand why.

Thanks
Maxime

[GerdW · Accepted solution]

Hi Gerday,

everything works when I launch the software with the " higtlight execution" but without I have the same problem than before.

Well, you burn your CPU using loops without wait states! Put some wait function in your loops. All of them!

I don`t understand why.

Running a program as fast as possible is seldomly the best way…

The last loop (to the right) is pure nonsense! Use proper DATAFLOW provided by error cluster wires…

[Gerday.M]

Thank you a lot for your answer.

I didn`t know about the wait states and that I was burning my CPU (But i`m not an informatician, so I don`t know exactly what it is ^^ but this week-end I will update myself)

Anyway with the wait states now everything works. ( by the way, is there a minimal for the wait states ?)

and about this sentences :
" Use proper DATAFLOW provided by error cluster wires…"

I found nothing with the clusters. I can`t regroup the error wires or the pink wire..... Can I more information about this?

But thank you a lot for your answer.

I`m happy to succceed the control of my servomotors during this week.

Maxime