Method to set the station process model

Hi ppl...
I'm building a custom operator interface in LabVIEW. I want to know the method to set the station process model.
Thanks
Solved!
Go to Solution.

Vishal
Applications Engineer
Natoional Instruments
India

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How to release process model sequence file object?

Calling engine's method GetStationModelSequenceFile we get the reference to the process model sequence file object. According to TestStand Help, you should "Release this reference when you are done using it." The question is: how do you release it? Call engine's method ReleaseSequenceFileEx passing the reference to the model sequence file gotten from GetStationModelSequenceFile won't work, it returns FALSE which means the sequence file can't be released. Similar problems exist with methods SequenceFile.GetModelSequenceFile, Execution.GetModelSequenceFile. My aplication is written in VB. Using the statement like
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Here are what I did after launch the operator interface:
1) Call Engine.GetSequenceFileEx to get a reference to a sequence file.
2) Display steps of MainSequence of the sequence file in GUI.
3) Call Engine.GetStationModelSequenceFile to get a reference to the station process model sequence file. The variable used to save the reference of process model sequence file is modelSequenceFile.
4) Loop through all the sequences in process model sequence file, get the references of entrypoint sequences in the process model and put them in a container (VB Collection).
At this point,
Calling modelSequenceFile.CanUnload returns TRUE
Calling modelSequenceFile.IsExecuting returns FALSE
Calling Engine.ReleaseSequenceFileEx(modelSequenceFile, ReleaseSeqFile_UnloadFile) returns FALSE
There is no other loaded process model sequence file reference at this point.

How to load the sequence file from the process model?

Does anyone have an example process model that loads a sequence file? The out-of-the-box process models assume the sequence file is already loaded. I want the process model to identify the UUT type and load the appropriate sequence file based on that.

Mark,
A better solution to your question can be accomplised if you have TestStand 2.0.
Within the entry point of a process modle you can set the client sequence using Execution.ClientFile(). This is a new method of TestStand 2.0. It was specifically designed so that you could dynamically set the client sequence within the process model.
Currently the entry points in the default process models (i.e. Test UUTs and Single Pass) are configured to Show Entry Point When Client File Window is Active. This means that you must open and have active a client sequence file before you can execute one of the entry point. You probably do not want this implementation if you are going to set the client file during the entry point execution. To change this you will need to go the sequence properties of your entry point (while the sequence is open select Edit>>Sequence Properties), switch to the Model tab of the entry point's property dialog box, and enable Show Entry Point For All Windows. The entry point will then appear whether or not you have an open sequence file active.
You will need to add at least 3 steps to your entry point sequence that all use the ActiveX Automation Adapter. Remember that MUST disable Record Results for any step you add to the process model. The 3 steps will perform the following tasks:
1) Obtains a sequence file reference of the file that you want to be the client sequence file. You will need to use the Engine.GetSequenceFileEx method. You will need a local variable (ActiveX data type) in which to store the sequence file reference.
2) Set the client sequence file using the Execution.ClientFile property.
3) Close the reference to the client sequence file in the Cleanup step group of your entry point sequence using Engine.ReleaseSequenceFileEx
I am attaching a SequenceModel.seq file (the default process model in TestStand 2.0) in which we have modified the TestUUTs entry point as described above.
Note that you'll be prompted to enter the path to your client sequence file. This is a message popup that you can delete and it was added for your review only.
Good luck in your project,
Azucena Perez
National Instruments
Attachments:
sequentialmodel.seq ‏164 KB

How to set the number of sockets for batch processing at runtime?

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Go to Solution.

If I understand, you want your plug-in, when enabled, to alter the settings of any other instances of the NI report plug-in such that their reports share the same directory as your plug-in is configured to use.
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Station Info using Batch Process Model

Hi,
I have a test sequence that use a sequential process model and I grab station information using the following.
RunState.Root.Locals.StationInfo.StationID
RunState.Root.Locals.StationInfo.LoginName
I am creating a new test sequence which uses the batch process model - when I try to grab the Station Info data using the syntax above I get the following error
Unknown variable or property name 'RunState.Root.Locals.StationInfo'.
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Solved!
Go to Solution.

In the batch and parallel models you can access this information using:
RunState.Root.Parameters.ModelData.StationInfo
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I am using the Sequential Process Model in my application and the TestStand Reference Manual, (Figure A-1), clearly shows the following processing sequence:
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Call the Test Sequence
Display the UUT results
Generate a Report
Log Result to a Database
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Ray,
Is that new in 4.2 that the engine won't call a callback with nothing in it? I just did it and it seemed to work fine. I'm using 4.1.1 though.
Ski,
Maybe there is a better solution for what you want. Are you using the SequentialModel? What version of TS do you use? Why does the report have to be written before the pass/fail banner displays? The pass/fail banner gets displayed in the PostUUT callback. Like Ray said if you just put that in your client sequence you won't see the banners. However, I'm assuming there is more to this than just that. I'm assuming you want to see the report because of your external analyzer that is gathering the statistical data. And then based on that data you want to allow the user other options. Is this correct?
If so then I would override the PostUUT callback and then use a different callback (possible the ProcessCleanup callback) to displaly the banners. You could even do this without modifying the process model (which I always try to avoid). Just override both the PostUUT and ProcessCleanup callbacks. And then put code in the ProcessCleanup to behave like you need.
Or if you want you can modify the process model and create a new callback lower in the process model. Then have that new one do the post report analysis.
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CTA, CLA
teststandhelp.com
~Will work for kudos and/or BBQ~

Parallel Process Model Entry

Hello,
First, using LabVIEW 2011 and TestStand 2010 SP1.
We have a custum GUI setup to use the sequential model. At the heart of it, when we hit start, it accesses the Single Pass entry point and runs it with some modifications we've made. Now, we'd like to have a setup that can test multiple DUTs and use the Parallel Process Model. I'd like to have our GUI basically perform the same functions as the built in popup when running the TestUUTs entry point. I've seen the PreUUT callback where you can disable the built in popup. But what I can't seem to figure out is how to initiate a test socket test because it doesn't seem to line up with an entry point necessarily.
When they push the start button next to DUT 0, I want to start socket 0. And if they hit the start button next to DUT 1, I want to start socket 1. What entry point does the GUI use to make this happen? Does the GUI need to start an entry point (IE Test UUTs) then send more information later to start a test? if so, where does TestStand wait for that information within the parallel process model?
Thanks.

One way you could do it is as follows:
Still override PreUUT like in the example and add code which posts a UIMessage synchronously to the UI and then waits for a persocket notification (e.g. you can use the socket index as part of the name to make a per socket notification). Then in your UI, handle the UIMessageEvent on the ApplicationMgr. When you get the UIMessage from your PreUUT you will know it's ready and you can then update your UI to enable the start button, and when the user presses it, you can then Set() the notification to tell the testsocket thread to continue.
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In your UI
Handle UIMsg_UserMessageBase + 1
Enable Start Button
When start button pushed, Set Notification that corresponds to that socket. Pass any data needed with the notification, for example, create a container that contains a serialnumber property and a continuetesting property and pass that with the Set operation. In your PreUUT code get that data from the notification and update your parameters.
Not simple, but doable.
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Trouble setting the session state of a select item.

Hi,
I have a requirement whereby I need to change the session state of a select list item in my form without the need to submit. I am using Application Express 4.1.0.00.32. I thought this would be straight forward using a dynamic action or javascript and calling an on demand process for example.
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Thanks.
Edited by: 968358 on 01-Nov-2012 08:40

if you are on 4.1 why don't you use a dynamic action instead of writing the code again?
create a dynamic action like this
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Source Type: Item
Item: P1_MY_SELECT
True Action:
=========
Action: Execute Plsql Code
Plsql Code: null;
Page Items to Submit: P1_MY_SELECT
Page Items to Return: P1_MY_SELECT (this is optional)
http://docs.oracle.com/cd/E23903_01/doc/doc.41/e21674/advnc_dynamic_actions.htm#HTMDB27020

Method to set the station process model

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