multisim error during co simulation

[ussr123]

Hi,

When doing a simulation in Labview (using a Multisim model) in the Control&Simulation Loop, sometimes a small window appears with the error: Multisim is closing due to error...(or something like that, I do not use multisim in English) even if I did not open Multisim at all. I think it is opening in the background and it is closing due to some error.

When somebody could help me out, I would be really grateful...

Thanks,

Ussr123

[ussr123]

Recently I figured out, that the problem happens only in multisim....because the same labview Vi works perfectly with another multisim simulation design.

Anyone any help? How can one figure out what is the problem, if there is no error code displayed?

Thanks,

Ussr123

[ussr123]

Recently I figured out, that the problem happens only in multisim....because the same labview Vi works perfectly with another multisim simulation design.

Anyone any help? How can one figure out what is the problem, if there is no error code displayed?

Thanks,

Ussr123

[Tien_P]

Multisim does run in the background if you are using the LabVIEW Multisim co-simulation.

Are you able to post the VI and Multisim circuit?  If you don't want to post your design on a public forum, send me a private message with your email address.

[ussr123]

Hi,

I cannot post it or send it at all:(

But generally what can be the problem? Is Multisim not closing properly? Can I force it somehow programatically in the Simulation and COntrol loop?

Or can be some timing issue? Is something too slow / too fast?

when I run a simple simulation in Multisim (for ex Transient), there is no error at all. So I suppose my circuit is correct.

Thanks!

Ussr123

[ussr123 · Accepted solution]

Hi,

I think I know already what was the problem. I was giving some input values to my Multisim simulation file. These values were floating point numbers and sometimes with inifinite digits after the comma. It seems that Multisim could not handle this. After cutting all the numbers they came after the comma, leaving only 2 or 3, the error did not appear anymore.

I hope I could help, if anyone else will head the same error, try thinking about cutting the many floating digits of the real numbers.

Ussr123.