Mask and limit testing

Hello,
When i am trying to use the Mask and Limit testing I am getting " Unable to View Properties" could you please tell me what will be issue on this.
Thanks
KJD
Attachments:
Mask and limit testing.png ‏56 KB
Mask and limit testing.png ‏56 KB

I would say off hand that the express VI is corrupted.
Mike...
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Similar Messages

Cannot call "mask and limit testing" inside a loop

Calling "mask and limit testing" in a loop doesn't work. The problem
is that the Upper Limit and Lower Limit are initialized only the first
time the VI is called. All waveforms are tested against the same
limits even if different limits are passed at each iteration. Is there
a way to use this VI in a loop?
Thanks!
Martin
Attachments:
test_limits_testing.vi ‏193 KB

Dear Martin,
Thank you for contacting National Instruments. I would like to apologize for the delay in responding to your support request.
From the information you have provided, it sounds like you are running your VI and experiences issues with the lower and upper mask refreshing after subsequent iterations of the FOR loop.
The �Mask and Limit Testing� Express VI is not intended to function inside a loop; however, you can fortunately modify this Express VI to perform the desired action. To do so, please follow these instructions:
1) Open the Block Diagram for your �test_limits_testing.vi� file
2) [Right Click] on the �Mask and Limits Testing.vi� Express VI
a. Select [Open Front Panel]
b. When prompted to convert to a standart subVI, choose [Convert]
3)
[Right Click] on the �subMaskLimitTesting.vi� Express VI
a. Select [Open Front Panel]
4) From the toolbar, select [Window] >> [Show Block Diagram]
5) You should see two subVI�s named �MatchDT� (white icons with black text)
a. Wire a [True] Constant to the �Reset 2� input terminal for each of the �MatchDT� subVI�s
i. To do this, right click each input terminal and select [Create]>>[Constant]
ii. Make sure the constant value is set to [T] for �true�
6) Save and Close the subVI�s
7) Re-run your �test_limits_testing.vi� file, and the masking limits should re-initialize upon each loop iteration
You have successfully customized the VI to function within a loop.
I hope this helps! Please don�t hesitate to let me know if there�s anything else I can help with or clarify. Have a great day!
Kind Regards,
Joe Des Rosier
National Instruments

Mask and Limit Testing Express VI

Hello.
Im a bit new at looking at limit testing signals. Im using the Mask and Limit Testing Express VI to mask a signal I acquired previously. See attached VI.
My problem is that we would like to load the limit mask at run time using a file of some sort.
At the moment I am un-able to get any sort of mask loaded using the limit inputs to the Mask and Limit Testing Express VI. Does anybody know how I might do this?
Thanks in advance
Chuck
Attachments:
Limit Test (SubVI) example.vi ‏724 KB
Limit Type.ctl ‏5 KB

Hi and thanks for getting back so soon
True the upper and lower inputs are not connected because I wanted to show a working (all be it without an external mask) VI
the problem is I can't get the upper and lower inputs working in any form If I connect the inputs. So I guess my question should be,
How do I wire the upper and lower inputs to produce a working mask with the data supplied?
Then how do I use a file to provide the mask data.
Sorry for my lack of clarity and I hope this helps.
Chuck

Problem to define limits in Mask & Limit Testing vi

With Labview 8.0 I can not longer define limit mask by draging points on Define Signal mask screen.
I used Mask & Limit Testing express vi before with Labview 7.1 and was able move points with cross mouse cursor to define limits envelope around tested signal.
With new labview this feature is disabled and I have to manualy enter X,Y cordinates for each point.

I have reported this issue to R&D for further investigation, we hope to see it resolved in a future revision of LabVIEW. Sorry for the inconvenience.
(ID # 3V09NT1W)
Since I'll likely be the person fixing this, I went ahead and investigated this and found the cause of the problem, so I can provide a better workaround too.
One of the VIs used in this dialog has a very easy-to-make mistake in it. It's a little embarassing, though at least I can say I didn't write the original VI in this case.
If you open the following VI:
vi.lib\express\express shared\ex_TableUpdateTable.vi
The "graph relative coords orig" refnum going into the top two property nodes is wired incorrectly. Visibly it's impossible to tell this until you click once on the wire between the two property nodes. Notice that it is coming from the input to the first node, not the output of the first node. Delete this wire and re-wire it from the output of the first one. This will force the write to happen after the read.
Interestingly, the VI did not change at all between 7.1 and 8.0, this race condition just got compiled / clumped differently which caused the write to happen before the read in 8.0.
Message Edited by Jeff B on 03-01-2006 11:11 AM

Mask & Limit Testing Express vi

Hello,
i have a problem with the Mask & Limit Testing vi. I want to connect the upper and lower limits at the terminals outside the vi. The limits are signals like this:
0            10
200        30
30000    200
The first column is the time in ms the second for example the length in mm.
How must i connect this limit data?
greetings Schwede

Are you trying to test the data to one limit, then to the second, then to the third? Or are you trying to build two waveforms and then test to them?
The first is solved by setting up the limits as constants in the Express VI and then wiring in the constants.
The second is much more difficult as the waveforms need to match in dt and array length. I think that can be accomplished easier than Jeff is doing it, but I would like a better idea before I spend the time to come up with an example.
So, several steps with constant levels or a single step with a complex level mask?
Thanks,
Bob Young
Bob Young - Test Engineer - Lapsed Certified LabVIEW Developer
DISTek Integration, Inc. - NI Alliance Member
mailto:[email protected]
Attachments:
mask_and_limit.vi ‏67 KB

Multiple Numeric Limit Test - Evaluate Post and Status Expression

We have a Multiple Numeric Limit Test where the limits for one of the measurements is a function of one of the other measurements.
In the Post-Expression there are two expressions that set the low and high limit based on one of the readings.
But the comparison does not seem to be using the calculated limits.
The report file shows the correct calculated Low and High Limits, and shows the measured reading as being in between the Low and High limit, but fails that measurement. I feel the Status Expression is using the default limits that are out of range.
The post expression looks like this
Step.Result.Measurement[2].Limits.Low=Step.NumericArray[1]*1.9,
Step.Result.Measurement[2].Limits.High=Step.NumericArray[1]*2.1
In Table 3-4 "Order of Action that a Step Performs", Evaluate Post-Expression (Action #15) is before Evaluate Status Expression (Action #16), but it seems that is not the case.
Or am I changing the wrong Low and High Limits. Am I just changing the Limits used in the report file and not the limits used for comparison?
Again the correct low and high limits are in the report but not used for comparison.
Thanks

Digging into the NI step type for Multiple Numeric Limit Test, I find that the comparison is done at Post-Step substep which is before my Post Expression is evaluated to set the correct limits.
So I have added code to my VI module to set the limits after taking the measurements but before returning to TestStand.

Property Loader and Multiple Numeric Limit Test

Hi!
I'm trying to export the limits of all numeric limit tests im my sequence.
I've no idea what i'm doing wrong, but i fail with exporting the limits of the multiple numeric limit tests. There are only the limits of the "normal" numeric limit tests in my export.
Could someone please explain me how to export also the limits of the multiple numeric limit test?
(TS 2013)

when defining what to export, it is usually easiest/cleanest if you can explicitly define all multiple numeric step measurements as explicit indixes? For example if your MNL step has 2 measurements defined, you'd want to export 4 additional matches...
Step.Result.Measurement[0].Limits.Low
Step.Result.Measurement[0].Limits.High
Step.Result.Measurement[1].Limits.Low
Step.Result.Measurement[1].Limits.High
...and so on for more indexes....
note how the pattern is different from the regular
Step.Limits.*
by default when you try to export using the '>' buttons for MNL steps, TestStand will usually try to help by generating an incomplete/invalid expression of:
Step.Result.Measurement[?].Limits
which it expects you as the user to fix before proceeding, however the '?' is often overlooked, because it's so small!
some people prefer to simply export the entire Step.Result.Measurement.* to the file because they'd prefer not to define array indexes, but this will log the explicit XML for the container values, which may not be as easy for end users to work with... your mileage may vary. Good luck!
-Elaine

Numeric Limit Test - Several arrays and 1 limit set per array

Hello !
I am quite new to Teststand and I get stuck with an issue of which the solution should not be that intricate ... (I think ...).
I would like to use a "Numeric Limit Test" vi (LabVIEW module). This vi returns 3 arrays and I would like to define 1 "min/max" set for each array.
i.e. :
ARRAY1 => each element compared to min1 & max1
ARRAY2 => each element compared to min2 & max2
ARRAY3 => each element compared to min3 & max3
For 1 array, I found this solution : I write Locals.ARRAY1[RunState.LoopIndex] in "DataSource" and all the elements of the array are compared to the limits I have chosen. Of course, when I add 2 arrays, the same limits are compared to those new arrays but I would like to allocate 1 limits set to 1 array.
Does anyone have an idea of an easy solution ?
My Teststand code and the little vi are here below if it might help.
Thank you in advance !
Solved!
Go to Solution.
Attachments:
Arrays_Generator.vi ‏11 KB
Sequence File 1.seq ‏7 KB

Consider this example. The trick is Repeat One Measurement on the Data Source tab.
jigg
CTA, CLA
teststandhelp.com
~Will work for kudos and/or BBQ~
Attachments:
MultiARray.seq ‏7 KB
Output3Arrays.vi ‏10 KB

Hi All, I just installed PS CC 2014 and Deleted PS CS6. I have a HUGE problem! The Liquify Filter on PS CC 2014 is not working. When the filter comes up, my photo is reduced to two color fields - bright turquoise and lime green! Can anyone help me? I

Hi Everyone,
I just deleted PS CS6 and installed PS CC 2014. I'm trying to use the Liquify Filter and it does not work. When I click on the Liquify Filter, my photo does not appear properly. The photo appears as two flourescent color fields - bright turquoise and lime green! Can anyone help me with this? Also, does anyone know if I can re-install Photoshop CS6?
Thanks!
Laraine

Hi Everyone....I figured it out. Strangely, although I had NEVER used Liquify in PS CC 2014....I just realized that in Liquify Advanced Mode that the "SHOW MASK" option was on by default! I unchecked SHOW MASK. Everything is OK. Whew! Tks!

The images imported to my stage turn up as blank and render every image previous to the rogue imported image as red squares that fill the perimeters of the image which then renders the publishing and scene testing features in flash useless, what can i do

I have been working on animating a scene in flash for a few weeks and recently I have encountered a problem with importing my images on to the stage where the images I import do not turn up, however the key frame that I attempted to import the image onto shows that it is occupied by an image and every frame previous to the key frame that just imported an image that does not show turns up as a red square that fills the original perimeters of the image, there is no solution to this problem any where on the forum and the adobe technical support staff will not help me find a solution to this problem what can I do to get Flash running normally again and fix this problem?????
Also after the first time i publish a preview after i begin using flash, flash renders the publishing and scene testing features as useless and claims that there is no HTML template found, or if the images if i import any images onto the stage that come up blank and render every image previous to that image as a red square and then try and publish a preview flash renders the publishing and scene testing features as useless and claims that there is no HTML template found. What can I do to fix this problem??? there is no solution on the web anywhere to this problem either.

I don't know if Flash has a memory limit of its own. The memory for your Flash file is based on the available memory on your computer.
There is a limit on the number of frames that you can have in any given timeline. I think that it's about 15000 frames, but that's a guess. Flash does all of its work at runtime, this means that no part of your animation is pre-compiled like it is in a video file. So the more objects that you have on the stage, the more work Flash has to do. It follows that the more objects that there are to animate, the more work your processor and the video card have to do.
Here's a list of articles on memory management that might be useful:
Garbage collection internals for Flash Player and Adobe AIR | AdobeDeveloper Connection
actionscript 3 - What are good memory management techniques in Flash/as3 - Stack Overflow
AS3 Memory Management Tips

Is there any differnce between the Numeric Limit Test source code from TestStand 3.0 to TestStand 3.1? How to get the source code for the Numric Limit Test for both the versions?

I need to know the differnece between the Numeric Limit Test between the TestStand version 3.0 to 3.1. If there is any differnec in the source code how to find it out? If somebody has the code can you share it?
Thanks,
Jeyan

Hi,
I don't believe there are any differences between the two versions. But you can check the source code for the Numeric Limit Test in TestStand\Components\NI\StepTypes\CommonSubsteps. But the main part of the step is the Code Module and this bit the users supplies this.
What has prompted this question?
Regards
Ray Farmer
Regards
Ray Farmer

The "Edit Numeric Limit Test" help page is wrong

The last four limit types incorrectly say "and" where they should say "or" in the limit comparison. The software gives the correct information in the status line just below the limit type editing screen, only the help file is incorrect.

David@Work -
Thanks a ton for reporting this! I went ahead and documented this for fix in a future version of the software, and I also documented that the Multiple Numeric Limit Test documentation is incorrect, as well.
For your reference, this was reported to R&D #118475 for further investigation and fixing.
Thanks again for your feedback!
Derrick S.
Product Manager
NI DIAdem
National Instruments

Custom Looping Multiple Numeric Limit Test SequenceFilePostStepFailure

Hi
I am using a custom loop on Multiple Numeric Limit Test. The SequenceFilePostStepFailure callback is called each time the loop fails and called again when the step fails.
I want to do something (not relevant for this question) when it is looping and something else when the step fails. How do I know the difference? Is there any flag to look for?
I have tried looking at several variables under RunState but haven’t found the right one. Is there one?
Thanks in Advance
Kim

Kim,
Try Runstate.Caller.Step.Looptype you can compare this to NoLooping. If NoLooping then the step doesn't loop. You can also use Runstate.Caller.Step to get a Step object and then just use the API calls to manipulate it. You can read about it in the TS help. To get the loopindex try: Runstate.Caller.Loopindex.
Both should be ran in the SequenceFilePostStepFailure Callback.
jigg
CTA, CLA
teststandhelp.com
~Will work for kudos and/or BBQ~

Execution order of Multiple Numeric Limit Test?

What is the execution order of "Multiple Numeric Limit Test" in TestStand 2010?
I am using a custom steptype of Multiple Numeric Limit Test. I want to manipulate the input parameter. How can I do that. I am not interested in making a new steptype. I am writing in Post-Expressions and the data is manipulated as they should but it is not evaluated. I is evaluated before the Post-Expressions executes.
For example I am writing: Step.NumericArray[0]= Step.NumericArray[0]*1000/(2.5-Step.NumericArray[0])
The execution order when looking at the TS manual at page 3-13 is Evaluate Post-Expression before Evaluate Status expression. But it is not what I see. I have also tryed using the more simple Numeric Limit Test and it works as I expect it to according the manual.
Anyone knows about any workaround for that?

Hi Ray
Thanks for your reply
I have tried writing what you are suggesting: Step.Result.Measurement[0].Data= Step.Result.Measurement[0].Data*1000/(2.5-Step.Result.Measurement[0].Data)
Still it evaluates the step before the post-Expression. When I am looking at the variables at runtime the Step.Result.Measurement[0].Data is having the correct value but it seems to evaluate the step before the Post-Expressions.
Any other suggestions?

Can I exclude measurement (of multiple numeric limit test) from results ?

I'm working on test where instrument returns multiple results at one call.
I use NI MultipleNumericLimitTest -step type (TS 2.0.1).
In some cases I'd like to exclude certain measurement from the results.
I could do this for example by setting Comparison type of selected measurement to "No Comparison", so that this measurement is assumed to PASS always.
Is there any property flag or any other way to exclude measurement from the results completely ?
(So I don't want this measurement to affect on multiple limit test status or to appear in the report)
cheers,
Masi

Hi!
Yes, there is a property that you can set/reset that specifies whether the property appears in the report or not.
1. Right click on your multiple numeric step and select View Contents
2. From the tree view, browse to YourStep->Results->Measurement.
3. Right click Measurement and select properties.
4. Click the Advanced button and look for the PropFlags_IncludeInReport flag and uncheck it.
That's it, now your measurements will not appear in the report. If you want some of the measurements (but not all) to be included in the report, then browse to the specific measurement YourStep->Results->Measurement[i], and check the PropFlags_IncludeInReport flag for that property.
I hope this helps. Let me know if you need more information.
Marcela.

Mask and limit testing

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