Running a sequence with 2 process models

Hi,
We intend to use 2 different process models, running the same MainSequence. The reason for the difference in process models is there is large difference in hardware on the stations. So we need to account for that difference in our mainsequence as well, where we do certain actions when using one process model, and a different action on another.
My question is, what is the preferred property to look at in memory (runstate tree somewhere?) for the MainSequence to have knowledge of what process model it is currently running, so we can add cases in our MainSequence to differentiate actions.
Thanks
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James' approach is better....
Because then you don't have to worry about if your root is correct.
jigg
CTA, CLA
teststandhelp.com
~Will work for kudos and/or BBQ~

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Can I desynchronize one station with batch process model?

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My project has 5 stations run test in parallel. I decide to use batch process model since I want them to start and stop together. Beside start and stop, I have some certain part in the test sequence need to sync together. But in 5 stations, I want one station work without sync at these steps. I tried using batch synchronize with precondition but it looks like other stations still wait for the one I skip the sync. My another option is using rendervous with number of parallel thread is total - 1. I test and this works. But I still want to know if I can use batch synchronize step or not because this offer the start sync and exit sync feature.
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NTT wrote:
Doug,
Thanks for your answer.
I want to have something happens parallel with other threads but without affect by batch sync steps. I have multiple stations working parallel in assembly line. They are sync because of pick and place. But I want to have one process works as station manager who keep track of UUT between station and other environment condition like pressure, temperature.
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Getting sequence filename and sequence name in process model error handler

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Hey hans,
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teststandhelp.com
~Will work for kudos and/or BBQ~

Problem with business process modelling

Hi guys,
Im facing a new problem, while trying to build a new business process in Solution_Manager im getting the runtime raise_exception each time im activating the business process details button.
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I'm agree with Dimitri,
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Can we run Payroll Driver in a Process model?

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Implementing interrupt-like funtionality in the process model

My application requires testing high-power semiconductor devices. These devices are water-cooled to keep from exceeding operational temperatures. I am considering developing my process model to handle the water-cooling which entails monitoring water flow, temperature, and pressure and, if any of these parameters leaves an acceptable range, throw an error the test sequence.
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Hi kc64,
You are right, editing the process model to check the current state your system after each step would not be the best approach.
I would recommend running a separate sequence in a new thread within your execution. This standalone thread would check the state of your system and throw the error you desire upon your system going out of desirable ranges. This will run concurrently during your entire test.
I hope this helps!
Message Edited by evanp on 11-09-2007 01:16 PM
Evan Prothro
RF Systems Engineer | NI

Runtime error in process model and sequence still passes

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Solved!
Go to Solution.

Ryan,
I am just getting back to this. Thanks for the response.
I have my own sequence that gets called from ProcessSetup in the process model. That sequence sets up some station global variables for me including some Object References. One of the object references is a .NET object used to read a file. If that file does not exist, then the .NET object throws an exception which results in TestStand presenting a dialog with the error message and options about what to do next. I don't want our technicians getting that dialog box so I changed the Station Options to "Run Cleanup" on Run-time error.
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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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The following top-level objects were not released:
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Any help will be greatly appreciated.

Here are what I did after launch the operator interface:
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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.
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Calling modelSequenceFile.CanUnload returns TRUE
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How do I make a process model sequence (not entry point) available to the test sequence?

I have sequences that update process model data in the process model sequence that I would like to make public so that I can call this sequence from the test sequence.
I am using TS2.
I know that I could insert a sequence call and when specifying the module simply select the process model sequence file. Is there a more direct way of specifying the process model sequence file? Can I hide sequences in the process model so that they can't be called by the test sequence?Message Edited by Francey on 05-19-2005 06:38 AM

When creating a custom step type, you can check "Designate an adapter", and use the Sequence Call adapter. If you would like to make the user unable to change this property, you can disable the "Can Specify Module" property on the "Disable Properties" page.
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Allen P
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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.
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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

FailureHandlerExample does not seem to work when used in the ProcessModelPostStepFailure Sequence of the SequentialModel

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I have just tried the callback and it works for me. Here is what I did.
1) open new sequence file.
2) double click on model path shown at the bottom of the sequence editor. This opens model file associated with the new sequence file.
3) with the process model file active, select Edit>>Sequence File Callbacks
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How to protect process model being modified (using Teststand3.1)?

I'm developing a custom Process model, and don't want to be modified by others. I know there's a password protection function in Teststand3.5 but not available in Teststand3.1. Is there any other methods to prevent my process model being modified by others in Teststand3.1??
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Protect from whom? Are you using the user manager and are you checking privileges? If you want to protect the process model fro other TestStand administrators, I'm not sure what you can do but the default privileges prevent operator and technicians from editing a sequence file or process model and if you can use the user manager to change the Developer profile Privileges>Configure>Edit Process Model to false.

Running a sequence with 2 process models

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