How to stream data from .m file to Simulink block

With this .m file you can 'update' the constant block declared in Simulink .mdl file

I was trying to use "From Workspace" block but, it gathers the value only once at the beginning of the simulation. I cannot just run a m-code script, save data and then transfer it to Simulink becouse both together need to work with real time vision system. How can I solve that problem? https://www.mathworks.com/matlabcentral/profile/authors/3874897-michal
With this .m file you can 'update' the constant block declared in Simulink .mdl file