Before running the test, the blocks wired to the manipulated outputs
of the MPCPro and MPCPlus blocks (the downstream blocks) must be in the correct
mode (Remote Cascade or Cascade depending upon the connection).
Select MPC control in the Operation area.
This puts the downstream blocks in the correct mode so
that the output of the function block is used as the setpoint for the
downstream blocks. (Notice that the actual mode of the function block changes
from IMAN to MAN.)