Is there a way to get the name of the Main Sequence test running to send back to LabVIEW?

[AllanIL]

Hi,

I am currently trying to get the name of my Main Sequence tests being run and send the name over to my LabVIEW GUI interface for a custom progress bar. However, I am relatively new to TestStand and I am having some difficulty figuring out how exactly to do this as well as determining the time for each step to run in my Main Sequence.

[Oli_Wachno]

Hi,

the name of your Main sequence is always Main

If you need information for any steps in your current sequence you can access them via ThisContext.Runstate.Sequence subproperties.

Have a break on first step of your sequence and check in variables view, what is availabel

[AllanIL]

Hi Oli.

Thank you for your response and from what I understand from what your saying I can get the name of my current testing running via ThisContext.Runstate.Sequence.Main?

So for an example if I have 3 tests running within my Main Sequence and I want the name of the current test running I can use this current expression:

Locals.TestName = NameOf(ThisContext.RunState.Sequence.Main)

Where my "TestName" is a string in my Locals to hold the current test name, which will get overwritten whenever a new test is executed. For an example if I had Test1, Test2, and Test3 in my Main Sequence it would return in my locals string as Test1 when executing, then overwrite Test1 with Test2, when Test 2 is executing?

[CharlieRodway]

If you want to send the name of your Main Sequence tests over to the LabVIEW UI then the prescribed way of doing this would be using User Interface Messages.

There's a good introduction to UI Messages here: Using TestStand User Interface Messages (UI Messages)

Typically, you will need to:

1. Define a custom UIMessage, eg. UIMsg_UserMessageBase+1, to use in both the TestStand and LabVIEW

2. Call a PostUIMessage(UIMsg_UserMessageBase+1, TestName) to send the UI the TestName

3. Add a Callback VI to receive the UI Message and pass in any references to controls (eg. custom progress bar) you wish to update

4. Add a case in the Callback VI for UIMsg_UserMessageBase+1 and modify the control with the received TestName

All this should be described in the link above.

I hope this gets you started.

Regards,

Charlie

[AllanIL]

Hi Charlie,

I have reviewed your link that you have suggested and we do indeed have the same solution to process and execute the message protocols. I am working with some VI's that someone has given me as an example. What I am trying to do is to create and expression that simply determines, which test in my Main Sequence that is currently running and store that into a string variable, which I would then send over via my protocol. I am having difficulty trying to make the expression as this is new to me.

My expression is the following:
Locals.TestName = NameOf(ThisContext.RunState.Sequence.Main)

The idea is to have a Local named TestName and the function would get the name of the current test running in my Main Sequence. 

For an example I have TestA, TestB, TestC in my Main Sequence and I would like to know the name of which test is running at the time.

[CharlieRodway]

Does this work for you?

Locals.TestName = RunState.Sequence.Name

Regards,

Charlie

[AllanIL]

Hi Charlie,

If run that current script wouldn't I get the name of the current step running rather than the Main Step? For an example if I was running TestA and it was calling a sub-test of TestAa, would the name coming back to my variable be TestAa, which is a sub-sequence I called or the Main Sequence. I have attached an image of a basic test I am trying to conduct in order to get the name of my test. I am trying to use that script to obtain the Test_POS1 and not the sub-step that it calls, which would be Stepper_POS1.