while loop inside control & simulation loop

[MarcoAlmeida]

Hi all,

I have a problem when using while loop inside mathscipt used inside control & simulation loop.

I want to read a excel cell each 5 seconds and to do it I'm using matlab scrip to know when I have to change cell.

My inputs on mathscipt are: run_time and sim_time. 1st one is the running time from control & simulation loop and 2nd is the time of each simulation.

My output is cell to go to the VI excel reader.

So, to do it I'm using a while loop like this:

cell=H1;                                       % starting on excel cell H1

count=1;                                       % creating and starting counter variable

h=5;                                               % creating and starting second counter

while run_time < sim_time do   % while loop: do it until reach simulation time.

if run_time ==h                             % compare running time with next 5 second (5,10,15,20,...)

count = count +1;                         % increase counter for next 5sec

h=h*count;                                     % to compare on "if" next loop (5+5, 10+5, 15+5,....)

cell=strcat('H',int2str(count));     % put on ouput next cell: H2,H3...

end

end

But, when I used while loop it doesn't do nothing. My code is working without while loop, but it only does 2 cells. I want more than that.

Is there anyone can help me with it? another way to do it?

Thanks in advance.

Regards.

Marco

[ThibaultP]

Hi MarcoAlmeida,

Did you try step by step debugging ?

If yes, what happen inside your while loop ?

Regards

[MarcoAlmeida]

Hello ThibaultP,

No I didnt try. I'll do it and come back to say what happen.

Thanks.

[MarcoAlmeida]

Hi again.

I tried to do it but it seems to be dificult to me to understand what is going on inside loop because Vi is too big with multiples sub-vi's.

I got another way to do what I want.

Thanks anyway.

I have another problem reading excel files: my simulation gets too low but I'll try to do a search for same problem in another topic.

Regards

Marco