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Re: [TRNSYS-users] Run time error "Invalid float point operation"
Chun Kwon,
An invalid float point error is a generic error generated by
Fortran and can be caused by a lot of things (division by zero, log
of a negative number). From outside the Fortran compiler, it is not
really possible to tell what happened. If you are not using any
user-written types, you can contact your distributor for assistance
in finding out what went wrong. If you are using a user-written Type,
you can get some idea if you turn on TRNSYS's "debugging" mode by
changing the value of field 9 in the Simulation Studio control cards
(where you change the simulation start and stop times). This will
tell you if TRNSYS found a component's output set to the "NaN" (not a
number) condition, or if a component wrote to an output outside the
range that it reserved for itself. If that doesn't show you anything,
then I would suggest running your simulation from within the Compiler
so that you can put in breakpoints and walk line by line through the
code to find out where it is going wrong. There are some tips on how
to do this in the 08-Programmer's Guide manual.
Cheers,
David
At 20:17 2/8/2008, h8304506@hkusua.hku.hk wrote:
Dear Trnsys users.
When I ran my simulation of a liquid desiccant dehumidifier, the
captioned error occurred. Does anyone know what is the likely cause
of such error. Thank you!
Best Regards
LEE, Chun Kwong
PhD student
Department of Mechanical Engineering
University of Hong Kong
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