nested loops

[ACP]

Hello,

I want to create the sequence of nested loops. Until then, I'm getting there. For at runtime against the loop which has the lowest level remains in the last iteration. I wish I could reset the loop for that at the next iteration of the loop the highest level, the innermost loop level to turn.

Will it a way to reset a loop without resetting the sequence?

Thank you to you!

[Thoric]

Hi ACP,

Currently there is no way to set the current iteration on a loop, only the total number of iterations. If you want to change the total number of iterations for a loop I would not recommend doing this whilst the loop is executing as this could possibly confuse the navigation engine that steps through the sequence definition. You would need to change the value in edit mode and then reset the sequence in preparation for a fresh run through.

I can see that changing the number of iterations for a loop whilst it's executing could be useful, and for that we have an enhancement idea that we may choose to introduce in future Sequencer releases that works a bit like While Loops do in LabVIEW. But for now, in V1.0, this is not something we support.

[ACP]

Sequence
|Loop1 (1 to 4)
| |Test0
| |Loop2 (1 to 3)
| | |Test1
| | |Test2


The iteration values by loop

I get that I will wish that

Loop1 Loop1
it1 Loop2 it1 Loop2
it1 it1
it2 it2
it3 it3
it2 Loop2 it2 Loop2
it3 it1
it3 Loop2 it2
it3 it3
4 Loop2 it3 Loop2
it3 it1
it2
it3
it4 Loop2
it1
it2
it3

I just want reset the loop2 at his end for the next iteration of loop1. I do not think there was need to change the number of iterations, just have a reset function as the sequence.

[ACP]

excuse me the layout does not match

I get that

Loop1
it1 Loop2
it1
it2
it3
it2 Loop2
it3
it3 Loop2
it3
it4 Loop2
it3


I will wish that

Loop1
it1 Loop2
it1
it2
it3
it2 Loop2
it1
it2
it3
it3 Loop2
it1
it2
it3
it4 Loop2
it1
it2
it3

[Thoric]

Are you saying that your inner loop doesn't return to zero iterations when the outer loop comes back around? If so, then this is a problem. The way it is designed to work is as one would expect, in that the inner next loop (loop2) will complete 3 iterations for every iteration of the outer loop (loop1).

Therefore, for your definition:
|Loop1 (1 to 4)
| |Test0
| |Loop2 (1 to 3)
| | |Test1
| | |Test2

you should get:
Test0
Test1
Test2
Test1
Test2
Test1
Test2
Test0
Test1
Test2
Test1
Test2
Test1
Test2
Test0
Test1
Test2
Test1
Test2
Test1
Test2
Test0
Test1
Test2
Test1
Test2
Test1
Test2

Can you confirm that this is what you are or are not receiving please? If so, please reply with your sequence added as an attachment and I will take a look, thanks.

[ACP]

Hello,

I confirm that I do not have these results and I will forward my sequence.

Thanks,

ACP

Attachments:

MySequence.zip (173.63 KB)

[Thoric]

Hi ACP,

Thank you for attaching the sequence. I will look into this immediately and hopefully get to the bottom of your issue for you.

[Thoric]

Hi ACP,
Sorry for the late reply, I've been unavailable, but I can confirm that I see the same issue as you and will be looking into getting a fix released as soon as I can. Thank you for your patience.

Edit: Keep a look out for PTP Sequencer V1.0.2.141 which promises to fix this issue for you. It will be available via our website (www.ptpsequencer.com) and the NI Tools Network soon (within a few days hopefully). If you need it immediately, let me know and I'll email it to you directly (I have access to your account details and can pull up your email address).

[ACP]

Thank you

I'll cheked the updates.

[ACP]

Hello,

Thank you for your quick response.

I did the update ptp_sequencer_v1_0-1.0.2.141.vip. I tested
different types of sequences and it's do the job in many situations. Only one is a problem.

I am sorry you'll say that I'm never satisfy.

when I do a loop test without added directly behind and added a nested loop imediatly after. The execution don't work correclty.

I will forward my two sequences. One sequence work correctly. The other entitled SeqFault.pss illustrate my problem.

MySequences.zip (174.69 KB)

I thank you so much.

ACP

[Thoric]

Sorry about the issues you're having, I'll download your files and take a look as soon as I can for you.

OK, I can see the problem, I'll look into a repair a.s.a.p. for you!

[Thoric]

Jun 5, 2014 13:20:55 GMT ACP said:

I tested different types of sequences and it's do the job in many situations. Only one is a problem.
when I do a loop test without added directly behind and added a nested loop imediatly after. The execution don't work correclty.

I will forward my two sequences. One sequence work correctly. The other entitled SeqFault.pss illustrate my problem.

Hi ACP,

Thank you for the sequence files, these were helpful in determining the problem. It's actually the same bug as before, but my recent fix didn't catch 'all' circumstances. So I've checked all the corner cases I can think of, which includes your attached sequences, and now it works as it should. V1.0.3 is built and will be available from our website and the Tools Network shortly. Keep your eyes open for a notification through VIPM.

One quick note: In your failing sequence, you had the final test "ETUVETemperature" outside of both loops, so it only runs once at the end (after 99 iterations of the TTITension test). Did you mean to have it inside the first loop such that it occurred following the inner loop each iteration? For example, 9 iterations of TTITension and one of ETUVETemperature, then repeat all that for 11 iterations?
Below is a tree view of your failing sequence, as you provided it, showing ETUVETemperature outside of both loops, and the second image shows it included in the ETUVETemperature loop (which is how I presumed you want it?). If this is your intention, then you need to move that test into the outer loop for it to repeat once per outer-loop iteration.

- causes 99 x TTITension, then 1 x ETUVETemperature

 - causes 11 x ( 9 x TTITension then 1 x ETUVETempeature)

[ACP]

Hello Thoric,

Thank you I will checked the updates.

About the file, I can be wrong in one chosen. You understood what I meant.

Thank you.

ACP

[Thoric]

The update is already available from our website (www.ptpsequencer.com) but not yet from the NI Tools Network.