State Variable in 6.3

Jens-Christian Meiners

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I'm trying to define a state variable in 6.3. I have enabled Variable Utilities in the Model Builder, and I can access that ribbon in the Definition branches, global or component. But State Variable does not appear as an option. What am I missing? Thank you!



1 Reply Last Post 25.11.2025, 10:39 GMT-5
Edgar J. Kaiser Certified Consultant

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Posted: 1 hour ago 25.11.2025, 10:39 GMT-5

Hi Jens-Christian,

I checked and was as surprised as you. The state variables are now under 'Equation Contributions'. You must activate the Equation-Based Contributions in Show More Options to see that. Maybe one of the COMSOL folks can comment on the reason for the change and whether the functionality has changed.

Cheers Edgar

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Hi Jens-Christian, I checked and was as surprised as you. The state variables are now under 'Equation Contributions'. You must activate the Equation-Based Contributions in Show More Options to see that. Maybe one of the COMSOL folks can comment on the reason for the change and whether the functionality has changed. Cheers Edgar

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