The controller-based bead optimization has been given numerous
default settings (OPT_PARAM)
that produce satisfactory results for various optimization models.
Usually, these default settings do not need to be changed by the user.
However, by specifically configuring the controller for a given optimization
task, the controller response, and consequently the optimization procedure
can be improved. The user can set several optimization parameters using
the OPT_PARAM command and thereby influence the controller
response.