Models with experiment annotation that have parameters without bindings and without explicitly set start values in Buildings.

[casella]

Dear Buildings developers,

please check the latest OpenModelica regression test report. There are a few Buildings models that fail since we fixed ticket OpenModelica/OpenModelica#10386.

According to the latest version of Modelica Specification, i.e., 3.6, when you simulate a model all parameters with fixed = true should have a binding equation (either provided as a default in the components, or set by modifiers when instantiating them). The only exception is parameters that have an explicitly set start attribute - in that case, if a binding equation is lacking, the start attribute is used to set the parameter value and a warning should be issued.

You can

• add a default binding to the parameters in the component definitions, or
• add an explicit bining when you instantiate the components or,
• add an explicit start = 0 attribute to the parameters in the component definition, which will be used as a fallback value, with a warning being issued.

This will make those models compliant with the Modelica Specification in force, and get them running again in OpenModelica.

Thanks!

[mwetter]

Thanks, we will correct it through https://github.com/lbl-srg/modelica-buildings/issues/3697