I got this issue recently. This error was happening in a custom type that someone gave me. This type was working well in TRNSYS 17, but I had this error in TRNSYS 18.
First of all, I made sure I had no division by zero. So no input with a zero value.
I was still getting the same error, but it was happening later in the simulation.
Then, I used the debug mode with Microsoft Visual Studio and the Fortran Compiler. I found out that a few value (x) were getting bigger through the simulation until exp(x) wasn't possible anymore (maximum value of the computer was then outmatch).
I fixed those bugs and now it works fine.
Hope this can help somehow,
Marie-Hélène Talbot | Étudiante à la maîtrise
Énergies renouvelables et efficacité énergétique
Département de génie de la construction
École de technologie supérieure
2018-01-25 3:26 GMT-05:00 <trnsys-users@lists.onebuilding.org>:
Dear TRNSYS users and developers,
Does anyone have an idea how to deal with "invalid floating point operation"
messages during simulation ?
Thanks in advance,
Sabrine ZADI
Ingénieur Efficacité Energétique
Service Engagement Energétique - Direction Ingénierie Conception
sabrine.zadi@engie.com
T 02 40 41 33 28
www.engie-axima.fr
15 rue Nina Simone - CS 39601
44096 NANTES Cedex 1 – France
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