Send UI meassages from teststand sequence to Simple CVI Operator Interface with Asynchronous Timer

Hello,
Is it possible and how is it possible to send UI meassages from a teststand sequence to the Simple CVI Operator Interface with Asynchronous Timer which could be downloaded from NI Hompage. I use this problems because it is more stable than the standard OIs
regards samuel

This post could help:
http://forums.ni.com/ni/board/message?board.id=330&message.id=7567
Regards.

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Execution of TestStand-Sequence in LabVIEW via TS-API: Different Execution times for same sequence

Hello Forum-Members,
I have a problem concerning the execution of an TestStand-Sequence in LabVIEW. I have created a VI that offers the ability to choose a TestStand-Sequence-File and then executes the sequence using the TestStand-API. The implementation is based on an example in C++-Application found following this link:
http://forums.ni.com/t5/NI-TestStand/Unreleased-references-using-engine-API-in-C/m-p/2927314#M46034
The implementation works quite solid in case the VI is executed the first time. The VI processes the chosen sequence in a acceptable duration.
But in case the execution is started a second time, the execution of the sequence takes ca. 30sec more than in the first case.
Until now I have not found a solution and hope someones got a hint concerning this problem...
I am using LabVIEW 2013 and TestStand 2013.
I have attached my own VI, a sample sequence with a small sample VI, so you can reproduce the problem.
Kind regards,
TobiKi
Solved!
Go to Solution.
Attachments:
Exe-TestStand-Sequence.vi ‏25 KB
Sequenz.vi ‏8 KB
Test-Sequenz.seq ‏5 KB

Hi Norbert,
first thanks for your answer.
What would be a reasonable way to replace the "Execution.WaitForEndEx"? My first idea is to get the respective thread of the execution and use the "Thread.WaitForEnd".
To clarify my problem:
The execution of the sequence itself takes longer time and so the execution of the calling VI. I have attached pictures of the log file of the first and second execution.
Further I don't get any dialog popups during the shutdown of TestStand. (I have activated the "ReportObjectLeaks" using the "DebugOptions") While developing the attached VI I've gotten several popups. But these popups disappeared after closing all references.
Maybe you have another hint how to locate the problem.
TobiKi
Attachments:
FirstExecution_20-08-2014.png ‏16 KB
SecondExecution_20-08-2014.png ‏16 KB

Why I get an error when running a sequence using the LabVIEW operator interface ?

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Hello Verdulken,
I have a few additional questions:
Does your application function correctly when running the LabVIEW operator interface you have created as a VI in the LabVIEW development environment (i.e. does this problem only occur when the LabVIEW operator interface is run as an executable)?
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TestStand Error only when using Operator Interface

My testStand sequence runs correctly when I run it from the seqEditor, but when I run it from our Operator Interface (modified version of the simpleOI example), I get the following error,
"Error Message: Parameter 'Input Files': System Level Exception. [Error Code: -17502]
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Thanks for any info and help on this. Also any info on why the simpleOI would cause an error would be appreciated too.

Hi Ray,
Here are some answers to your questions.
This VI that error's, is it part of the simpleOI or part of the Sequence File being run by the simpleOI?
---- The VI is part of a sequence file that is called by the OI.
If it is in a Sequence File, does this run in the default OI?
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What does the simpleIO do with the data contained in Input Files?
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What version's of TestStand and LabVIEW are you running.
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What sort of modification have you done to the simpleOI example?
---- I think we only added our new sequences, a Operator info popup, and a few more buttons (Pass/Fail light, Change Op Info). And we removed some unused code to make it more simple.
Thanks again for your help.
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Is it possible to shutdown TestStand LabWindows/CVI operator interface programmatically?

Hi,
Like the title says, I'm trying to find a way to shutdown TestStand operator interface automatically after sequence execution is completed.
Any suggestion is appreciated, thanks in advance.

Thank you for your reply.
I did a loop but it wouldn't work :s
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Hope this was clear enough and I hope this may be helpfull for someone else.
I apreaciate all the help.
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Hi:
I was working on the batch model TileWindows changes in parallel and had noticed the tracing problem as well. The TileWindows subsequence from your BatchModel fixes this problem - thanks.
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I�m trying to control the TestStand engine from
Visual Basic. I�m using the Automation Server
interface rather than the ActiveX control because
ultimately I want to be able to interface with it
from script running in a web browser.
The problem I'm having is that I can execute a
sequence file but I can't get any meaningful
results out of it. For example the ResultStatus
property of each step in a sequence is blank.
However, when I run the same file in the sample
VB Test Operator program everything seems to work.
I guess it's probably because I'm not handling
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The relevant code is as follows:
Set moTS = New TS.Engine 'using as Automation
Server
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("c:\program
files\teststand\tutorial\sample2.seq")
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Set oSequence = moSequenceFile.GetSequence(0)
SequenceName = oSequence.Name
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If Not moTS Is Nothing Then
If moTS.IsUIMessageQueueEmpty Then
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UIMsgCode = moUIMsg.Event
Select Case UIMsgCode
Case UIMsg_StartExecution
Case UIMsg_EndExecution
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moExecution.NumThreads
Debug.Print "Execution Status = "
& moExecution.ResultStatus
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Set moSequenceFile =
moExecution.GetSequenceFile
Set oSequence =
moSequenceFile.GetSequence(0)
NumSteps = oSequence.GetNumSteps
(StepGroup_Main)
For i = 0 To NumSteps - 1
Set oStep = oSequence.GetStep
(i, StepGroup_Main)
Debug.Print "Name = " &
oStep.Name
Debug.Print "Description = "
& oStep.Description
Debug.Print "Result Status
= " & oStep.ResultStatus 'This is empty
Next
Debug.Print "Report = " &
moExecution.Report.All 'This is empty
Set oSequence = Nothing
Set moThread = Nothing
Timer1.Enabled = False
Case UIMsg_BreakOnUserRequest
Case UIMsg_BreakOnBreakpoint
'etc.
End Select
Set moUIMsg = Nothing
End If
End If
Sent via Deja.com http://www.deja.com/
Before you buy.

Hi Paul,
Thanks for the examples web reference. The simple VB example will be
useful as there's less stuff to wade through! Plus, I'll probably also
eventually need to refer to the C++ examples.
Re: the current problem, I had in the meantime solved it on my own. I'd
done what you say below, but the critical thing I missed was defining
the sequence context object.
Kevin
In article <[email protected]>,
"Paul Mueller" wrote:
>
> Kevin,
>
> You'll need to use a timer callback or some asynchronous technique to
poll
> for UIMessages. Furthermore, you need to release the UIMessage
before TestStand
> will continue with the execution. The execution pauses while you are
handling
> the UIMessage. And the execution continues only when you release the
UIMessage
> (or set it to Nothing).
>
> THere is a Simple VB Operator Interface example on the web at
www.ni.com/support/epd/
>
> Hope this helps,
> Paul
>
> [email protected] wrote:
> >I�m trying to control the TestStand engine from>Visual Basic. I�m
using
> the Automation Server>interface rather than the ActiveX control
because>ultimately
> I want to be able to interface with it>from script running in a web
browser.>>The
> problem I'm having is that I can execute a>sequence file but I can't
get
> any meaningful>results out of it. For example the
ResultStatus>property of
> each step in a sequence is blank.>However, when I run the same file
in the
> sample>VB Test Operator program everything seems to work.>>I guess
it's probably
> because I'm not handling>the engine's UIMessageHandler properly.>>The
relevant
> code is as follows>>Set moTS = New TS.Engine 'using as
Automation>Server>>'Get
> a sequence file>Set moSequenceFile = moTS.GetSequenceFile>
("c:\program>files\teststand\tutorial\sample2.seq")>>'Get
> the main sequence>Set oSequence = moSequenceFile.GetSequence(0)
>SequenceName
> = oSequence.Name>>'Enable polling for
UIMessages>moTS.UIMessagePollingEnabled
> = True>Timer1.Enabled = True>>'Start an execution on this sequence,
bypassing>the
> Proces model>Set moExecution = moTS.NewExecution>(moSequenceFile,
SequenceName,
> Nothing, False,>ExecTypeMask_Normal)>>'In UIMessage Handler code>>Dim
UIMsgCode
> As TS.UIMessageCodes>>If Not moTS Is Nothing Then>> If
moTS.IsUIMessageQueueEmpty
> Then>> Set moUIMsg = moTS.GetUIMessage>> UIMsgCode =
moUIMsg.Event>>
> Select Case UIMsgCode> Case
UIMsg_StartExecution>
> Case UIMsg_EndExecution>> Debug.Print "Num
Threads =
> " &>moExecution.NumThreads> Debug.Print "Execution
Status
> = ">& moExecution.ResultStatus>> 'Print info about the
steps>
> Set moSequenceFile
=>moExecution.GetSequenceFile>
> Set oSequence =>moSequenceFile.GetSequence(0)>>
NumSteps
> = oSequence.GetNumSteps>(StepGroup_Main)>> For i = 0
To NumSteps
> - 1> Set oStep = oSequence.GetStep>(i,
StepGroup_Main)>
> Debug.Print "Name = "
&>oStep.Name>
> Debug.Print "Description = ">& oStep.Description>
Debug.Print
> "Result Status>= " & oStep.ResultStatus 'This is
empty> Next>>
> Debug.Print "Report = " &>moExecution.Report.All 'This
is
> empty> Set oSequence = Nothing> Set
moThread
> = Nothing>> Timer1.Enabled = False>> Case
UIMsg_BreakOnUserRequest>
> Case UIMsg_BreakOnBreakpoint> 'etc.>>
End Select>>
> Set moUIMsg = Nothing>> End If>End If>>>Sent via Deja.com
http://www.deja.com/>Before
> you buy.
>
Sent via Deja.com http://www.deja.com/
Before you buy.

Send UI meassages from teststand sequence to Simple CVI Operator Interface with Asynchronous Timer

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