Labview 8.6 - Cannot save or modify vi. - error - crash

[Skyman]

Hello

Over the past few months I have been continually using Labview to perform some data acquisition and relevant signal processing. 

Today though, I cannot achieve anything due to a series of errors. 

When I open up my latest vi (Attached), it runs fine - if I try to modify it at all and then run it- the program crashes and closes.

If I first try to save it after modification before running - I get a popup message with 'Save Error Code 5: BD Heap'

I have read the one message in the discussion forums regarding this - and tried to progress with any relevant information, but to no avail.

I have tried copying it all over to a new vi, but no joy either.

I have also attached the latest error log - in a bid to try and figure out what is going wrong.

Thank you in advance

Skyman 

[smercurio_fc]

Sometimes what helps (believe it or not) is to save the VI for a previous version and then opening that. Try that.

Of course, I'm not going to stop there. Your program can be improved:

• You perform the same exact operation (filtering and finding a mean) multiple times, but you do this by duplicating code. Use a for-loop. Less space, less code.
• It's not clear what the values in the shift register are supposed to be. A better solution is to use a cluster so that you can label the invidual elements. Self-documenting.
• There is absolutely no reason to use MathScript to perform a simple Boolean operation that can be handle with either a case structure or the Select function. Less overhead, less libraries to load, faster code.
• You should clean up your block diagram. You have wires going under structures and wires flowing right-to-left. While the latter is not a no-no, it's usually better visually to try to keep a left-to-right flow if possible. Again, that's not an absolute must. 
• You have generic names for your controls. What's "Numeric 3", or "Boolean 4"? Use real names for controls.

If you still have issues please don't hesitate to post back.

[Skyman]

Thanks  smercurio_fc 

Yes the code is not the best orgainsed in the world and I have taken steps to do everthing you pointed out and implent that.

However I have been trying to get it to run all weekend - Saving for a previous version does not solve the problem - on all older versions Labview closes instanly on clicking on run.

I am pulling my hair out - it was excellent for months now nothing seems to be working.

Skyman 

[smercurio_fc · Accepted solution]

I was able to open in 8.6, modify it, and save it, with no crashes. I've attached a resaved version for you (with the MathScript nodes eliminated). See if this can be edited without crashes. You will have a far easier time dealing with this VI if you clean up the code and consolidate much of the functionality as I had described.

[RER]

Skyman, this seems to be a very rare issue. Please have a look at the following forum, as it addresses the same bloack diagram heap error you've recieved. I cannot find "feedback nodes" in your code, I could see many shift registers, which behave simularly.

http://forums.ni.com/ni/board/message?board.id=170&message.id=367703&requireLogin=False

I am able to work through the example described in the linked post, and I consistantly get the same issue. I will raise this our the national Instruments R&D department, and see if they agree it is a bug. Which version of LabVIEW are you running please?

[Skyman]

Thanks to you both

As you will hopefully see on th thread the program attched by smercurio_fc seems to be working fine now (Touch wood) - must be a problem with the mathscript node.

I am running Labview 8.6 - it seems to affect all my programs with mathscript nodes - now that I work through them - Would a reinstall be the best idea?

Skyman 

[smercurio_fc]

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Skyman wrote:

I am running Labview 8.6 - it seems to affect all my programs with mathscript nodes - now that I work through them - Would a reinstall be the best idea?

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This is highly suspicious. You've seen this occur on other VIs as well? I would suspect a corrupted library somewhere and would say a repair/reinstall is probably a good idea. It would probably be a good idea to run a check on the hard drive as well. 

[pandarya]

I have a problem when opening the vi of transmitter.vi in labview dsp module 8 ,target of TMS320C6713 ,then error is occure code37,reinstall the labview full development system include all toolkits.
but I have a already install full development system with labview dsp module.
Please support me!!
Email: rajendrapatil3009@gmail.com

[GerdW]

Hi pandarya,

and why do you hijack an old thread? Why don't you create your own thread?

How is your question realted to that old thread?