import data from mfile to simulink

hello dears I use "from work space block" to import data from mfile to simulink .but i encounter with error "Invalid setting in 'R_T/Subsystem2/From Workspace' for parameter 'VariableName'" . i cant resolve this error. Thanks if you help me

[farid]

the whole error is: Invalid setting in 'R_T/Subsystem2/From Workspace' for parameter 'VariableName'. Caused by: Error evaluating parameter 'VariableName' in 'R_T/Subsystem2/From Workspace' Undefined function or variable 'up_bar'.

[Haritha]

You have to create call back for that .m file. Then only simulink will access the variables from workspace

[farid]

how can i do this?

[Haritha]

https://in.mathworks.com/videos/improved-signal-management-with-model-explorer-68936.html. Check this example you will get an idea.

[farid]

i hasn't worked with model explorer. can i send you my mfile and simulink and you see it. thanks alot if you help me

[brn ny]

what type of data are you trying to import?can you share the files or screenshots?

[farid]

Okey. this is my mfile and simulink that i simulate. my variable in the simulink that import from mfile is up_bar. thanks a lot