Error in server block that is connected to entity generator containing bus elements.

Dear Matlab Experts,

I am having troubles with my model, right now I have designed a model to emulate a single part that goes through operations and maintenance procedures. I am utilizing bus elements in an entity generator, however upon initializing them (file initialize.m) and importing the file directly (file BusProfile.mat), and setting an initial value for each element used in the entity generator tab event actions, I am still encountering this error:

Error in 'ModelV1/LoadStress' block. See Service complete action line 15, column 9.

Caused by: This structure does not have a field 'Missions'; new fields cannot be added when structure has been read or used.

Component:Simulink | Category:Block error

And this error persists for every element that is listed. Any ideas why this happens? I have checked everything up to looking for typos and I am unable to see what is the problem.

Thank you in advance.

Answer 1

[Laurent Royer]

Hi Aaron,

From what I can see in the Part Generator, in tab "Entity type", your entities are typed with the bus definition "Part" alone. So your entities only have the elements Nf, Nj and crackLength. If you expected your entities to also have the elements of the other buses stored in your matfile, you should define a new envelop bus that contains all the other buses as sub-elements, like the bus "Main" in the screenshot below:

From there, in the Part Generator block, you'd select the entity type "Main".

Hope it helps

[Aaron Bramhasta]

Hi Laurent,

Thank you for your answer, much appreciated.

All clear and everything is working from my side thanks to your solution.

Have a great day!