Labview & Teststand

Hi guys.
I'm trying to learn how to use Teststand. I have read the Getting Started and practiced the exercises suggested but since I have never seen this software I still have some troubles.
I'm interested to use teststand with labview. The idea is to develope a driver to comunicate with one instrument.
Usually when I realize a driver, I think to a state machine with 3-4 states:
1- interrogation/identification
2- reset-configuration
3- acquisition
4- close/handling error.
The first question is: if I want to use teststand should I create a VI for each state of the state machine?
Watching the exercises suggested, when I execute them is opened a panel where I can choose which test I want to fail. The question is how can I create a panel like this where place all the buttons / controlls I need? In my labview driver I give to the user the chance to choose for example between two different kind of execution (manual/automatic) by clicking on the button-control handled by an Event Case. Is it possible to do this thing also in teststand?
Sorry for these questions.... If you have more guides that I should read they are welcome.

Why do you want to use TestStand? Creating a driver to communicate with one instrument sounds like something you would just use LabVIEW for.
Kelly Bersch
Certified LabVIEW Developer
Kudos are always welcome

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cross-posted on https://lavag.org/topic/18822-test-engineer-labviewteststand/#entry113145
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Hi Enquiry,
The reason for giving personal mail id is: "it is convenient to access
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Labview / Teststand programør søges !!

Vi leder efter en programmør, som skal indgå i et team i vore Manufacturing
engineering afdeling.
Vi beskæftige os med produktion af internetudstyr, printerservere, m.m.
Vi skal igang med at designe en ny testplatform, baseret på
Labview/Teststand til brug på vore fabrikker rundt om i verden.
Hvis du er interesseret kan du kontakte undertegnet
Allan Koch

Hej
Hvilket firma repræsentere du??
Måske intersseret.
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Allan Koch wrote in message
news:89jsvf$4oe$[email protected]..
> Vi leder efter en programmør, som skal indgå i et team i vore
Manufacturing
> engineering afdeling.
> Vi beskæftige os med produktion af internetudstyr, printerservere, m.m.
> Vi skal igang med at designe en ny testplatform, baseret på
> Labview/Teststand til brug på vore fabrikker rundt om i verden.
>
> Hvis du er interesseret kan du kontakte undertegnet
>
> Allan Koch
>
>

How can I handle deploying multiple test systems on the same PC that have been developed using different versions of LabVIEW, TestStand, and/or Switch Executive?

The major issue here is that the test systems must be documented and validated before being released to the production floor. Given this if a test station has multiple test systems deployed on it that have been developed on various versions of LV, TS, and Switch exec how can I force the test system selected to use the correct versions of TS, LV, and Switch exec.? I understand that the solution would be to recomplie everything and bring them up to the latest version but that would then require re-validation according to the QA department. Any advice would be greatly appreciated.
It would be nice if theTS deployment was more like an LV executable... meaning when a LV executable is launched it always knows what LV runtime engine to use when there are multiple engines installed on a PC.

Hi,
Multiply versions of teststand can reside on the same system, but only one version can run at a time. They is a utility that has to be run to set the active version.
The SequenceFiles have a version number, and you will find an error will be generate if you try to Load the sequencefile in the wrong version of TestStand.
The labview VIs will only work providing the correct version of the RTE is also installed on your system, even a labview executabe requires the correct RTE to be installed, either as part of the executable installation or as a seperate installation, before the labview exe will work correctly.
I'm not fimilar with the Switch exec but I would expect that it will also require the correct lower level device drivers to be available for the version you are using.
Therefore, as you are indicating that some of your system are at a older version, its difficult to image how you could achive this, considering if you say you have different versions of the software(s). For a start, you may have the problem that newer code/ sequencefiles using additional functionatily not available in the older versions.
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Regards
Ray Farmer

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LabVIEW/TestStand In-Place Structure?

I'm trying to minimize latency as much as possible at the interface between TestStand and LabVIEW regarding data acquisition (actually using 4 Measurement Computing analog input boards but the concepts should apply regardless of which hardware).
Rather than constantly calling a VI (in a while loop) requesting samples I was thinking about giving the VI the SequenceContext and letting it set Fileglobals directly. I'm setting FileGlobals and will provide a sequence that as many as 4 simultaneous threads could call all wanting access to the same data.
For various reasons, I actually want to set up a somewhat large ring buffer on the TestStand side ~75MB holding "pages" of samples. Essentially, I'll be taking 100-200ms chunks of data and stacking them together in these ring buffers up to 20 seconds worth of time. I'm aware that I'll be missing samples in between each chunk and I'll benchmark how bad this is but based on some initial experiments with the idea I think I'll be able to live with it.
So...that brings me to the actual question, is it possible to somehow give LabVIEW the 'pointer' to these memory location of TestStand and have it operate on it directly?
Am I making a bad assumption that constantly calling a VI and passing potentially large blocks of data around isn't a performance problem?

There is the "Set Property Value.vi" in LabVIEW. It is polymorphic. Just set the lookup string to "Fileglobals.Variable". The dot notation is kind of important. I do not know what kind of performance hits/gains this will give you though.
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Please look into my profile at linked in https://in.linkedin.com/in/prashantpatel21 I m interested.
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PBP (CLAD)
Labview 6.1 - 2014
KUDOS ARE WELCOMED.
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LabVIEW TestStand Runtime Server

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I wish LabView's development environment was more TestStand aware.
I have both LabView and TestStand development environments open at the same time developing a sequence and code modules. I have created some sequence file globals as part of my sequence file and I wish to set/get these globals inside my code module that I am writing at the same time. I can get access to these variables with "TestStand - Set Property.vi". However, I wish I could right click on the "Lookup String" terminal and have LabView produce a list of all the variables I have created in TestStand. This way I could quickly choose the Lookup String rather than typing it in all the time. For large applications this would be a time saver, dont you think?

I think that is a good idea but I won't coment on how feasable that may be.
But I will comment on the feature that was added in previous TestStand releases that allows you to access the whole VI connector pane instead of the default sequence context, error out, data out, and so on. With that new feature, I have found it rare that I even need to use the "TestStand - Set Property.vi" and other similar VI's anymore. I just make the VI connector pane have the input/output I need and then in the Module configuration I can send any value (Locals, Literal, globals) that it requires.

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