Labview to Scilab Gateway

[AkkiTriple5]

Hi everyone,

I am currently using the Labview to Scilab Gateway and really enjoying it. However, my scilab script is quite big, and requires 5-10 seconds by itself to execute.

To facilitate the user, I intended to use a progression bar. However, I think it is not possible to dynamically get values out of the Scilab Script node. (I was simply thinking of putting a time variable in my script (suppose integer t) and increment it after every 5 lines or so. I could then display it in progress bar.

Is there any way to do this. I could also use set cursor to busy, but that would not be as helpful. Kindly give any suggestions if possible.

[James_W]

(SubVI) with Horizontal progress bar

set scale range

loop until a timeout

update loop with progress along progress bar (numeric value)

simple

Lots of nice extras can be added and tweaks to make it nicer as you wish.

James

[AkkiTriple5]

Hi James,

As I mentioned earlier, I am facing problems with updating the loop with the numeric values for the progress bar. The scilab script node returns value only when it has completed executing, like a sub VI.

I cannot obtain values from it dynamically. However, I would like to give the user a measure of how much time it would take to complete the script. (It generally takes 5-10 secs but may sometimes it takes 30 secs also for large input data.

It does not immediately seem possible to me. Is there a way??

[James_W · Accepted solution]

I think you misunderstood me.

If you know the estimated time remaining - from previous empirical experience, then you can create the above described subVI and launch it as a Dialog in parallel to the SciLab function.

A reference to a stop Boolean will allow closing of this immediately on completion of the Scilab function.

This is a technique I often use when I have to launch a process over which I have no control but which I have a good idea how long it might take to complete, just so that the operator knows that the system has not hung. (a classic example would be when programming a chipset via a remote module.)