 Cannot instantiate template VI when in memory |
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 May 24 2003, 01:58 AM
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 Confucius say: Crowded elevator always smell different to midget   Admin  Posts: 2402 Joined: 13-October 02 From: Planet Earth Member No.: 2 Using LabVIEW Since:1994 LV:8.5 ,8.2.1 ,7.1.1 
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Just want to let everyone know of a change in the way template VI's are instantiated. I got this error when I ran code that used to work fine in LV61:
CODE Error 1127 occurred at Open VI Reference in Launch View Data Screen.vi
Possible reason(s): LabVIEW: Cannot instantiate template VI because it is already in memory. In LV61 there was no error and instead of instantating the new vi from the template it would just call the template VI and run it. This is not an issue in a built application but is tedious during development since you cannot test with the actual template in your hierarchy. Yet another minor change to live with I guess. -------------------- Thank You
Michael Aivaliotis - Follow me on Twitter - My Personal Blog Search the LabVIEW Web - Build the LabVIEW Web - Got VIPM? 
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May 24 2003, 01:58 AM
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May 24 2003, 06:21 AM
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Confucius say: Crowded elevator always smell different to midget Admin Posts: 2402 Joined: 13-October 02 From: Planet Earth Member No.: 2 Using LabVIEW Since:1994 LV:8.5 ,8.2.1 ,7.1.1
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Well, I got it working. Apparently NI changed the default action for the options input on the "open VI reference" function.
Previously you could leave the Options input unwired and LabVIEW would instantiate a VI from a template if the template was NOT already In memory. If it was in memory then it would just open a reference to the actual template. In LV7 you have to specify the options bit set in one mode or another. Otherwise it will error out if you try to open a reference to a template vi and it is always in memory. You have to specify: CODE 0x02 | Open templates for editing.
Another little thing to watch for when migrating to LV7. :wink: -------------------- Thank You
Michael Aivaliotis - Follow me on Twitter - My Personal Blog Search the LabVIEW Web - Build the LabVIEW Web - Got VIPM?
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