Code of RT that works ok interactively but breaks as a built application

I just solved this interesting but frustrating problem in which a real-time program would go well interactively, but would be broken when run as an application built.  I thought I would document it here in case someone of another falls into the same trap.

In short, I had several indicators on the front of the RT, which each was tied to a shared, Variable, which has the advantage of writing to the shared variable and indicator all in one easy process.  This has worked well in an interactive way, because of course that FP is responsible before the program is executed.  However once integrated in an application and execution at startup, the public Service does not load and for some reason, the application are broken and does not run.

What was particularly frustrating, that's how it was hard to track down.  RT documentation seems to suggest that connection front panel is ok, and interactively that is.  The Front Panel Binding mass Configuration dialog box supports screw RT suggesting that it should be ok.  A question is not listed in the LabVIEW features not supported in the RT no indication of broken code was not given during the build process.  When I used the Application Operate/Debug and connected to the application of the RT, he would not be running and to show an arrow broken Run, but even with debugging enabled, there is no way of knowing what was causing the program to break.

In the end, I removed parts of my code until I got a job request and then started putting things back in.  It turns out the only thing I had to change to get a work request was during dissociation of the lights.  The bonus is now, I reworked the writing of the shared variables to open the connection to them only once, instead of every time they are written - probably, it's faster, although I have not all a point of reference to show that.  Oh, and it's LV 2012, then, maybe, things have changed since then.

Resolved for now!

Tags: NI Hardware

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