Programatically create local variable in TestStand

Can somebody please explain the process of creating a local variable programatically? I have searched the forums but haven't found what I am looking for yet.
I have an array of unknown size. I use a foreach loop to step through the array and grab the data that I need. I need to put that string in a Local String Variable that I can use later.
Any help is much appreciated.
Matt
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Go to Solution.

That did exactly what I wanted it to do thank you. Now I want to take it one step further...
I have a local variable array called RI_Equipment that is of an unknown size. The array contains a container data. I want to create a variable of name ri_nameField+"_ID" and then set the value of that variable to what is contained in RI_Equipment[x].ri_IDField. Hope that all makes sense. Below is the statement I have in TestStand however TS tells me that this will cause a run-time error. What am I doing wrong?
Locals.NewSubProperty(Locals.RI_Equipment[Locals.loopcounter].ri_nameField+"_ID",PropValType_String,False,"",0) = Locals.RI_Equipment[Locals.loopcounter].ri_IDField
Matt

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Create local variable using labview scripting

I am trying to use labview scripting to create a control and a local variable for that control. I want both the local variable and the control contained inside a case structure. My problems are twofold:
1. the local variable is left blank/unnamed
2. the local variable is wired outside of the case structure, even though I set it's owner to be the same as the owner for the control (which is placed inside the case structure).
The flat panel is there because I thought that my problem might be a result of the local var being created before the actual control, so this just forces the control to be created first. The other thing I wonder about is the VI Object Class for the local variable. I have tried 'Node' and Control->Boolean, but neither worked.
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Attachments:
vi_scripting_lv.png ‏95 KB

The reason your locals aren't tied to a control, is because you didn't make a local variable from any control. Use the Boolean reference wire and wire it to an Invoke Node and select the Create >> Local Variable method.
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I think what you want is to create a GLOBAL variable, a LOCAL variable would be available to the Procedure/Function being executed. But to create the local variable, you add it between the Function/Procedure declaration and the begin
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Hi!
I searched the discussion forum, but I couldn't find any information about how to create a local variable using an expression.
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Hi everybody,
I´m using B1if 1.11.2 in Vendor mode.
When trying to create a local variable I´m getting the following error message:
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But the scenario is not activated. I have cleared the setup, but I´m still getting the same error.
BTW. I can edit the local variables in customer mode ...
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Thanks in advance.
greetings

Hi Matthias,
I am not sure about the exact problem - at least I don't remember it (the version you are using is 3 years old)...
...at that time I am sure I didn't use local variables anyway.
...would it be an option to upgrade (only integration framework?) to a newer version?
Questions:
...is customer mode / vendor mode the only difference?
I.e. the namespace is the same?
Did you create the step in Vendor mode - or Customer mode?
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Is there an easier way to create a local variable?

I want to create a local variable, but I don't wont to have to find the terminal first and then use the option create-local variable. Is there a way to make a copy of an existing local variable? If I use the CTRL-C and CTRL-V option another terminal is created too.

> Great! That was exactly what I wanted. It even works if more than one
> variable is selected.
This may not apply in your situation, but I feel obliged to make this
warning anytime I see this sort of posting. If you find yourself making
too many local variables, it is worth checking to see if you are doing
things the best way.
If you are using the locals for communication between parallel loops or
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How to solve error using local variables?

I've created a sequence with a local variable.
But when I execute it, an error occurs since the first step (before the step where I manipulate the local variable).
The error code is something like:
Error in Evaluation. Syntax expression. Column [0-0]
It's interesting because it seems that once I've executed my sequence for the first time I can't create any other sequence where this error doesn't appear.

Pparo,
The problem does not occur under TS 1.0.3 on my system. However, I think we can get to the bottom of this.
When at a breakpoint in your sequence, if I type the expression "Locals.nls == 15-" in the TestStand watch window, I will get the message
Evaluation Failed: Syntax error in expression (Column 18-18)
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Are you seeing this error reported in the watch window? If so, then you have typed the expression in the watch window.
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An error occurred in the 'Statement' step of the 'MainSequence' sequence in 'Sequence File1'.
The post-expression for the step 'Statement' could not be evaluated.
Syntax error in expression.
Error Code: -17322
From what you report, the error appears to be located in your watch expression. When I executed your sequence with a breakpoint on the first step, I added the watch expression by selected the Context tab, expanding the Sequence Context tree view until I could see the nls variable, and then I dragged nls from the tree view to the watch window. This created the watch expression of Locals.nls. I also created the same watch expression by right clicking in the watch window, selecting Add Watch from the context menu, and selecting (or typing) Locals.nls. The expressions all evaluated to 24 without error.
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Create New Variable for COPA Drilldown Reports in KE3E

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Local variable without frontpanel object

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Thanks a lot,
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Lynn, Marc, and "tbob",
Thanks for your replies. I detect the common theme of keeping my variables in bundles, but I'm not experienced enough to see how to apply this to my problem of communicating between parallel event handlers. If you have the time and patience, I have attached a very simple example of what goes on in my program.
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Attachments:
too many indicators.vi ‏24 KB

Using local variables

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If you are using a state machine, here is another way to create local variables. Create a cluster with all local variables that you need. Wire into a shift register. Use Unbundle to get the value and Bundle to change the value. See code below:
Message Edited by tbob on 05-09-2007 11:58 AM
- tbob
Inventor of the WORM Global
Attachments:
Local.png ‏4 KB

Question about Local Variables (Multiple answers welcomed!)

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1. Use Local Variables in user interface code and no where else. The only exception is using a local variable of a cluster output to define the datatype for a bundle by name node.
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Labview local variables not always renamed

Hello,
I might be missing something, but it seems that sometimes the local variables in my VIs are not always updated when I rename the Front Panel control associated with it.
I have an example where I right click on the terminal of a control named "RxConfigTest", create local variable. The local variable that gets created is named with the old name "RxConfig1".
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Hi,
Thanks for the response, but I was actually displaying the label. I know that this sounds like a newbie question, but I'm not.
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Unknown variable or property name 'ReportFilePath'. Error accessing item 'Runstate.Root.Locals.ReportFilePath'. in TestStand

Hi all.
I was using Teststand 4.2 up to last week and upgraded to TS 2013. In 4.2 I was using the following to get the location of the teststand report:
Runstate.Root.Locals.ReportFilePath
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Unknown variable or property name 'ReportFilePath'.
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Please find enclosed a screenshot of the report config:
Solved!
Go to Solution.
Attachments:
TS_ReportConfig.png ‏42 KB

Shashidhar,
Thanks for your help! With your tips, I finally got it to work. For anyone else trying to modify report names based on user input after the sequential process model sets the file name path I will re tell what I did:
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Create variables in TestStand with the PropertyLoader

Hello,
I whant to read several csv-files with the property loader of TestStand 3.1 (all FileGlobals or StationGlobals). The problem is, if the variable doen'st already exists the property loader doesn't work.
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Antonio,
Thank you for your answer. I read and understood the post http://forums.ni.com/board/message?borad.id=330&message.id=8395#M8395.
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Now we are trying to do almost the same thing with Teststand. We create 2 CSV-files which contains our variables and constants and we whant to link them in all the 20 sequences. We tried to use the property loader, but you need to define in each of the sequence files all the variables and constants, which is a bit unconfortable. Please see the attached file for a more graphical explanation.
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Attachments:
TestExec_Teststand.doc ‏29 KB

How can you create a local variable from a boolean control?

I want to create a local variable from a boolean control, but it says that boolean latch actions are incompatible with local variables, but I need a way to check this boolean control in two differents loops, how can I do it?

"Graci" schrieb im Newsbeitrag
news:[email protected]..
> I want to create a local variable from a boolean control, but it says
> that boolean latch actions are incompatible with local variables, but
> I need a way to check this boolean control in two differents loops,
> how can I do it?
Use global variables.
Compare them with a constant Boolean like F or T.
The result is true or false and then you can use it in a Cae-Loop.
Martin

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Programatically create local variable in TestStand