Reentrant / invariant VIs how to use...

Hello,
I have a problem to run a vi reentrant (invariant). I set the vi
properties to reentrant and tried out two ways to start the vi. The vi
is intended to open a new little window showing a device name and
retrieving a measurement value for that device, thats all. I hand over
a cluster including the attributes (like device name, connection id,...)
First "call vi per reference":
That does not work because the vi does not start immediately. A window
is opened but the vi does not run. Than it is possible to start the vi
through the vi run button.
Second "invoke node":
The "invoke node" works for one device the way i need it. But when a
hand out other parameters for another device no second window is opened.
Hope someone can give me some hints.
Big THX
Attachement: The expand vi is my reentrant vi.
Attachments:
Expand.vi ‏97 KB

You can't achioeve what you want with a re-entrant VI. What you
need is a VI template (Save the VI as a VI template, and it will get
the *.vit extension). Simply renaming the file to a vit extension
won't make it a template.
Then whenever you open it, LV will generate a new copy of it.
The reson why you need to do this is because the panel of a reentrant
VI is decoupled from the code executing. The panel will load only
once, but the code can be running in multiple instances in the
background. Because of this, the front panel does NOT display any
of the real-time information of any of the multiple instances
running. With a template, each piece of code has it's own
panel. They are actually all different VIs, duplicated and
renamed on-the-fly by LabVIEW so that they can all co-exist, co-execute
and co-display.
Hope this helps
Shane.
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)

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I'm not sure what is different for you now. You still parse the string
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MVC only really comes into play when you talk about where your write
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Hoskins, John D. wrote:
Thanks for the feedback.
The problem I was solving involved a single string, which contained
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With JATO, how would I make a model for something that doesn't have a
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John D. Hoskins
Telephone & Data Systems
Application Development & Support
Voice: 608.664.8263
Fax: 608.664.8288
Email: john.hoskins@t...
-----Original Message-----
From: Craig V. Conover [mailto:<a href="/group/SunONE-JATO/post?protectID=219212113009229091025149066024064239039098031198039130252055210">craig.conover@s...</a>]
Sent: 6/26/2002 3.22 PM
Subject: Re: [SunONE-JATO] Re: How to use a tiled view without a model
I guess the only thing "weird" (for lack of a better term) about what
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cycle". Typically, the cycle goes like this:
Request -> populate model -> update data store -> retrieve data to
populate model -> display data
some of the above steps are optional but hopefully you get the point I
am making.
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Request -> populate model/display data
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c
jhoskins wrote:
Craig,
Thanks for the pointers. I ended up doing something else. I set the
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iterated, populated the value from some vectors I had the data in
already. Is this solution fraught with peril and will ultimately fail,
or should I try your way?
John
--- Craig V. Conover wrote:
John,
Check out the docs for DefaultModel. There is an appendRow() method.
So get your tiledview's primary model (the tiledview's primary model
should be set to use an instance of DefaultModel), model.appendRow(),
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Rinse, repeat as needed.
c
jhoskins wrote:
I would like to use a tiled view, but populate the fields manually.
Any pointers about where I can set the size of the tiled view? I tried
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John Hoskins
To download the latest version of JATO, please visit:
http://www.sun.com/software/download/developer/5102.html
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
To download the latest version of JATO, please visit:
http://www.sun.com/software/download/developer/5102.html
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp
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Craig,
Thanks for the pointers. I ended up doing something else. I set the
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iterated, populated the value from some vectors I had the data in
already. Is this solution fraught with peril and will ultimately fail,
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John
--- "Craig V. Conover" wrote:
John,
Check out the docs for DefaultModel. There is an appendRow() method.
So get your tiledview's primary model (the tiledview's primary model
should be set to use an instance of DefaultModel), model.appendRow(),
then model.setValue("fieldname", value) for each value.
Rinse, repeat as needed.
c
jhoskins wrote:
I would like to use a tiled view, but populate the fields manually.
Any pointers about where I can set the size of the tiled view? I tried
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To download the latest version of JATO, please visit:
http://www.sun.com/software/download/developer/5102.html
For more information about JATO, please visit:
http://developer.iplanet.com/tech/appserver/framework/index.jsp

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out.write(", with ");
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if anyone can help me out, please do so..thanx in advance...

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