Test Stand: TestStand Engine Process

I'm looking into an application (written by someone else of course) which calls a "Test Stand Engine" to execute a test.
First thing is what is this "Test Stand Engine" ?
I have been using Test Stand GUI (Test Stand Sequence Editor) to execute such test cases in the past so I never knew what do they mean by Test Stand Engine.
The problem i'm looking into is simple.
They say that Test Stand Engine is being executed as part of a thread and my task is to make it execute in a process.
But I Can't find the actual call to test stand engine itself.
I'm on Windows box and all I can see in Task Manager => Process is TSAUTO~1.EXE which is same whether I run GUI or my application with Test Stand Engine.
What should I look for in my application code to find the "Test Stand Engine"?
Any Help?
Nirvana

Hi,
just to clarify that - there's two approaches to making an operator interface with TestStand.
1) Use the TestStand UI controls and manager controls or 2) Go directly to the TestStand Engine.
Option 1 actually overwraps the calls to the TestStand Engine anyway to make it easier to implement an operator interface. That's not to say that going directly to the TestStand Engine ActiveX automation server is difficult, but you have to do certain things, like shutting down in a sepcific way.
Your best other resource is the TestStand help (rather than the bookshelf pdf's) and have a look at the topic about "Writing an application with the teststand engine"
As Dennis says - you might get more help on the TestStand forums rather than the LabVIEW ones though.
Thanks
Sacha Emery National Instruments (UK)
Message Edited by SachaE on 02-22-2007 10:26 AM
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Attachments:
teststandHelpSection.JPG ‏55 KB

Similar Messages

Clearing Test Stand engine's internal cache

I am trying to clear the TEST STAND ENGINE'S internal cache of past sequence files in a custom Operator Interface I am developing using VB.NET. The scenario is as follows. The Test Stand OI application is instantiated from a desktop shortcut that also has the sequence file as a parameter. I am using only the "Single Pass" entry point.
The problem is other sequence files appeared to be executing in addition to the sequence file passed in as a command line argument. I checked this by creating an event handler for the openseqfile event and putting a VB.NET debugger breakpoint at its start. In the case I checked the seq open event fired 3 times. Once for each of the last 3 different sequence files I tried to run. I checked each of the files as they were being opened and the 1st file opened was the one I passed in. The second file opened was the one I ran prior to the current application instantiation. I checked that file an the "e.file.IsExecuting" property was TRUE! How could that file be executing when the application starts when it is not even the file I want to run?
The third file was a file I ran 2 instances ago and its "IsExecuting" property was false and its "CanUnload" property was true. I was able to remove that particular file with "Me.AxApplicationmgr.GetEngine().ReleaseSeqenceFileEx(e.file)" in the event handler.
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You should call ApplicationMgr.OpenSequenceFile instead of Engine.GetSequenceFileEx (see TestStand Reference Manual>> Chapter 9 Creating and Customizing Operator Interfaces >> Using the TestStand API With TestStand UI Controls).
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When you call ApplicationMgr.OpenSequenceFile, the file appears in controls that display the list of open files and your application receives an ApplicationMgr.DisplaySequenceFile event for the file.
If you can't use the ApplicationMgr methods, then I think the place to call Engine.ReleaseSequenceFileEx would be in the ApplicationMgr.QueryShutdown event (also see TestStand Reference Manual>> Chapter 9 Creating and Customizing Operator Interfaces >> Using the TestStand API With TestStand UI Controls).

I want to write a program in LabView then pass the test results to teststand to check if it pass or fail without displaying the test stand program,

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What's confusing is your statement that you want to do this "without display the test stand program". You can minimize the TestStand UI to the task bar but if you don't want TestStand to be running, how can TestStand evaluate the result. Explain a little more please.
In the message body of your post, you just say you want to create a LabVIEW exe and pass the results to TestStand. What I would recomend is that instead of an exe, you create a dll and use TestStand's DLL adapter to call it and return the results. TestStand will evaluate it and do the logging.

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Hi geddam,
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Thanks,
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Is there any way I can convert a Test stand sequence and corresponding vi's to an executable?

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There is no way i know or can think of to move all components from a TestStand application into a single EXE. Running TS in an application means that you should/must work highly unitized during developement and deployment.
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-> License information. TS requires at least the Base Deployment License installed and activated (requires NI License Manager software). RTE of modules might also include licensing and possibly activation fees.
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CEO: What exactly is stopping us from doing this?
Expert: Geometry
Marketing Manager: Just ignore it.

Test Stand Evaluation

Hi.
I would like to get some feedback regarding using Test Stand with Labview.
Currently I am using Delphi Interface as my Excecutive Engine and Active
X server to communicate with labview. The data logging, PLC I/O and Login/logout
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There could be lots of advantages to switching to TestStand, but it depends on your application.
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Test Stand Deployment; Internal Error Code 1

Hi,
I get the following message from the deploymeny tool when trying to deploy my system...
Internal error code 1 Processing VIs...
An installer was not created due to an error
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Hi Rick, see below cut and paste from this file, does this help?
08:55:43tarting Log.
08:55:45tarting Analysis
08:55:45tarting to process workspace file
08:55:56one processing workspace file
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08:55:57:Building...
08:55
08:57:01:Internal error code 1 Processing VIs...
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Error copying files.
Source:
Destination: <Not A Path>
Librarian Path Location.vi
<Call Chain>Error 1 occurred at ABAPI Dist Copy Non-VI Files.vi -> ABAPI Dist Build LLB Image.vi -> ABAPI Copy Files and Apply Settings.vi -> TestStand - Build VI Distribution 8 AX Wrapper.vi -> TestStand - Build VI Distribution 8 AX Wrapper.vi.ProxyCaller
Possible reason(s):
LabVIEW: An input parameter is invalid. For example if the input is a path, the path might contain a character not allowed by the OS such as ? or @.
=========================
NI-488: Command requires GPIB Controller to be Controller-In-Charge.
08:57:01:An installer was not created due to an error
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08:57
08:57:01:Aborted
08:57:01:---------------------------------------
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Test Stand 2010 Deployment tool Error

Dear All,
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Regards
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Hello,
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==================================================================================================== > CREATE TABLE UUT_RESULT ( ID COUNTER CONSTRAINT TABLE_CONSTRAINT PRIMARY KEY, STATION_ID VarChar(255), BATCH_SERIAL_NUMBER VarChar(255), TEST_SOCKET_INDEX Long, UUT_SERIAL_NUMBER VarChar(255), USER_LOGIN_NAME VarChar(255), START_DATE_TIME DateTime, EXECUTION_TIME Double, UUT_STATUS VarChar(32), UUT_ERROR_CODE Long, UUT_ERROR_MESSAGE VarChar(255), PART_NUMBER VarChar(255), TSR_FILE_NAME VarChar(255), TSR_FILE_ID VarChar(64), TSR_FILE_CLOSED Bit, PART_NAME VarChar(255), PRG VarChar(255), Comment VarChar(255), Operator VarChar(255)) Command issued.
> CREATE TABLE STEP_RESULT ( ID COUNTER CONSTRAINT TABLE_CONSTRAINT PRIMARY KEY, UUT_RESULT Long, STEP_PARENT Long, ORDER_NUMBER Long, STEP_NAME VarChar(255), STEP_TYPE VarChar(255), STEP_GROUP VarChar(32), STEP_INDEX Long, STEP_ID VarChar(32), STATUS VarChar(255), REPORT_TEXT VarChar(255), ERROR_CODE Long, ERROR_MESSAGE VarChar(255), CAUSED_SEQFAIL Bit, MODULE_TIME Double, TOTAL_TIME Double, NUM_LOOPS Long, NUM_PASSED Long, NUM_FAILED Long, ENDING_LOOP_INDEX Long, LOOP_INDEX Long, INTERACTIVE_EXENUM Long, CONSTRAINT STEP_RESULT_FK FOREIGN KEY (UUT_RESULT) REFERENCES UUT_RESULT (ID)) Command issued.
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> CREATE TABLE PROP_NUMERICLIMIT ( ID COUNTER CONSTRAINT TABLE_CONSTRAINT PRIMARY KEY, PROP_RESULT Long, COMP_OPERATOR VarChar(32), HIGH_LIMIT Double, LOW_LIMIT Double, UNITS VarChar(255), STATUS VarChar(255), HIGH_LIMIT_FORMATTED VarChar(255), LOW_LIMIT_FORMATTED VarChar(255), CONSTRAINT STEP_NUMERICLIMIT2_FK FOREIGN KEY (PROP_RESULT) REFERENCES PROP_RESULT (ID)) Command issued.
> CREATE TABLE PROP_RESULT ( ID COUNTER CONSTRAINT TABLE_CONSTRAINT PRIMARY KEY, STEP_RESULT Long, PROP_PARENT Long, ORDER_NUMBER Long, NAME VarChar(255), PATH VarChar(255), CATEGORY Long, TYPE_VALUE Long, TYPE_NAME VarChar(255), DISPLAY_FORMAT VarChar(32), DATA VarChar(255), FORMATTED_DATA VarChar(255), CONSTRAINT PROP_MULTINUMERICLIMIT1_FK FOREIGN KEY (STEP_RESULT) REFERENCES STEP_RESULT (ID), CONSTRAINT PROP_MULTINUMERICLIMIT1_FK FOREIGN KEY (PROP_PARENT) REFERENCES PROP_RESULT (ID)) Command failed with the following error...: Table 'PROP_RESULT' already exists. (-2147217900)
> CREATE TABLE PROP_NUMERICLIMIT ( ID COUNTER CONSTRAINT TABLE_CONSTRAINT PRIMARY KEY, PROP_RESULT Long, COMP_OPERATOR VarChar(32), HIGH_LIMIT Double, LOW_LIMIT Double, UNITS VarChar(255), STATUS VarChar(255), HIGH_LIMIT_FORMATTED VarChar(255), LOW_LIMIT_FORMATTED VarChar(255), CONSTRAINT PROP_MULTINUMERICLIMIT2_FK FOREIGN KEY (PROP_RESULT) REFERENCES PROP_RESULT (ID)) Command failed with the following error...: Table 'PROP_NUMERICLIMIT' already exists. (-2147217900)
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> CREATE TABLE PROP_DIGITALWAVEFORM ( ID COUNTER CONSTRAINT TABLE_CONSTRAINT PRIMARY KEY, PROP_RESULT Long, INITIAL_T DateTime, DELTA_T Double, UPPER_BOUNDS VarChar(32), LOWER_BOUNDS VarChar(32), TRANSITIONS LongBinary, DATA LongBinary, ATTRIBUTES LongText, CONSTRAINT PROP_DIGITALWAVEFORM_FK FOREIGN KEY (PROP_RESULT) REFERENCES PROP_RESULT (ID)) Command issued.
> CREATE TABLE PROP_ANALOGWAVEFORM ( ID COUNTER CONSTRAINT TABLE_CONSTRAINT PRIMARY KEY, PROP_RESULT Long, INITIAL_X Double, DELTA_X Double, UPPER_BOUNDS VarChar(32), LOWER_BOUNDS VarChar(32), DATA_FORMAT VarChar(32), DATA LongBinary, ATTRIBUTES LongText, CONSTRAINT PROP_IVIWAVE_FK FOREIGN KEY (PROP_RESULT) REFERENCES PROP_RESULT (ID)) Command failed with the following error...: Table 'PROP_ANALOGWAVEFORM' already exists. (-2147217900)
> CREATE TABLE PROP_ANALOGWAVEFORM ( ID COUNTER CONSTRAINT TABLE_CONSTRAINT PRIMARY KEY, PROP_RESULT Long, INITIAL_X Double, DELTA_X Double, UPPER_BOUNDS VarChar(32), LOWER_BOUNDS VarChar(32), DATA_FORMAT VarChar(32), DATA LongBinary, ATTRIBUTES LongText, CONSTRAINT PROP_IVIWAVEPAIR_FK FOREIGN KEY (PROP_RESULT) REFERENCES PROP_RESULT (ID)) Command failed with the following error...: Table 'PROP_ANALOGWAVEFORM' already exists. (-2147217900)
> CREATE TABLE PROP_BINARY ( ID COUNTER CONSTRAINT TABLE_CONSTRAINT PRIMARY KEY, PROP_RESULT Long, UPPER_BOUNDS VarChar(32), LOWER_BOUNDS VarChar(32), DATA_FORMAT VarChar(32), DATA LongBinary, CONSTRAINT PROP_BINARY_FK FOREIGN KEY (PROP_RESULT) REFERENCES PROP_RESULT (ID)) Command issued.

How can I get Test Stand to print failues only?

Rather than getting a large report file with hundreds of passes and only one failure, how do I configure Test Stand to only print the failures to the report?

Hi,
the engine callbacks are simply a sequence that gets called when a particular thing happens (i.e. Post Step).
There's three types
SequenceFile (for steps that execute in that sequence file whether it's a client sequence file or a process model)
ProcessModel (for steps that execute in the client sequence file run under this process model, but NOT the steps in the ProcessModel)
Station (for all steps on that installation - found in the StationCallbacks.seq sequencefile)
If the engine callback appears in more than one of the three places, then the lowest one (seq file->proc model->station listed lowest to highest)is used.
In your case, you could use any of them depending on your architecture.
Personally, r
emoving from the resultlist is easier than working out whether to add to it, but that gets tricky when you have steps which loop.
If you decide to make up your own add, then the PostStepFailure is the callback sequence to use (go to edit->sequencefilecallbacks). You'll have to add a new element to the resultlist, and start fleshing it out with the result container of the step (which you still have access to as a parameter) plus the TS container.
This would go into the Runstate.Caller.Locals.ResultList[x]
Also, don't forget to disable the result collection on all the steps in the test sequence, plus all the ones in your poststepfailure callback, since you're doing your own.
I'm attaching what I've done so far as an example - not quite finished, but it's done the TS container. Just now need to do the actual result container.
I'll keep working on it but for now you can see what I'm getting at.
Hope that gives you a kick start with the callbacks bit
Sacha Emery
National Instrumen
ts (UK)
// it takes almost no time to rate an answer
Attachments:
collect_only_failures.seq ‏31 KB

How can I pass a variable from Test Stand to CVI by reference

Hi!
I can't to pass numeric or boolean variable from Test Stand (for example: FileGlobals.StopFlag) into the step (CVI function).
Function prototype:
void __declspec(dllexport) __cdecl PC2_WaitWhileResponceAppear(tTestData *testData, tTestError *testError, int *iStopFlag).
When variable has bin changed I can't see this change from my function.
CVI 2010, Test Stand 2010
Can anybody help me?

Hey Rombar,
It is certainly possible to pass variables by reference; for example, if you go to <TestStand Directory>/Examples/Demo/C and open the computer.seq file, you can see one of the example sequences that uses CVI modules. If you click on one of these steps, you'll see that some of the parameters, such as the error information, is passed with pointers. This is a pass by reference.
To help narrow this down, it'd be good for us to figure out a few things about how the code is run. First, if you go to Configure > Adapters, select the CVI adapter and choose Configure, you can see options for this adapter. Do you have it configured to run in an external instance of CVI or as an in-process call?
Also, if you're wanting to see a change made in TestStand in your external code, this makes me think that you're wanting to run the code and then continue to execute your TestStand sequence while the code runs. How did you configure this behavior? For example, are you calling this code as a separate sequence in a new thread, or are you using another method to run this code while the sequence continues to run?
Finally, if we could see a screenshot of how you're configuring the parameters on the TestStand step, that might be helpful as well.
Daniel E.
TestStand Product Support Engineer
National Instruments

Test stand crashes: "test stand has detected that your script debugging"

05-01-201203:18 PM
Hi everyone. I am setting up a new installation of Test stand and writing my first sequence with an existing sequence of legacy code.
When I run the sequence and stop on the call to the DLL, and then step into the dll and I get this error:
test stand has detected that your script debugging settings might cause visual studio to hang when attaching to the teststand process to perform this step into operation.
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The message is vague and it is indermanent as to whether I should "enable" or "disable" Script debugging so I tried both. Test stand then crashes again and I get the same error.
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Richard

This is a duplicate. Please go here instead:
http://forums.ni.com/t5/NI-TestStand/quot-test-stand-has-detected-that-your-script-debugging-quot/td...

Wait time in Test Stand

I have an application in TS where I need to measure a leak rate. How do I set a "wait time" in Test Stand sequence so I can measure the same test point after certain elapsed time.

I don't think TestStand has a wait function. You would be better off doing this inside your test step code. Measure, wait, measure again. Both measurements can be returned to TestStand for further processing. Or just calculate the leak rate in your test step code and just return the rate to TestStand for numerical limits testing.
- tbob
Inventor of the WORM Global

Error when closing test stand

when i try to close test stand after i run a test, i got the error in the
attached file.
this error appear only if i dont close the sequence file before i exit test
stand and only after i run a test.
please help me.
advanced thank's.
[Attachment error.jpg, see below]
[See first answer for additional information]

Hello Avi,
The error is caused by TestStand not being able to finish the LoginLogout sequence before its time limit. These limits are set under Configure >> Station Options >> Time Limits. They will allow you to interrupt a sequence that is taking too long to shut down.
The real problem may be in the LoginLogout sequence, in the file \Components\User\Callbacks\FrontEnd\FrontEndCallbacks.seq (or substitute "NI" for "User" in the path). If something in that sequence doesn't finish executing within 10 seconds, due to an extreme slowdown or a problem with the sequence, you will see this error. If you have modified that sequence, this could be the cause. You will need at least two steps in the sequence, one for Login and another for Logout. They should
reference frontend.dll. If you have a modified callback in your User directory, trying copying the default callback from the NI directory.
Also, make sure that you complete or terminate other sequences before trying to close TestStand, or you will see a similar error message.
Good luck and feel free to ask if you have further questions.
Steven Reasoner
Applications Engineering
National Instruments

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