Abstract: A method and control processor are disclosed for executing a set of control tasks defining dynamic model-based interactive control of an industrial process wherein two sets of executable program code are executed according to a multi-tiered program execution priority scheme. The control processor includes an embedded control task that is periodically executed to carry out computations in accordance with a process control model. The output of the computations include setpoint values that are distributed to relevant control blocks executed in the control processor. The embedded control task is performed at a relatively low execution priority status within the control processor. The control processor also includes a set of control blocks. The set of control blocks are executed at a relatively high execution priority status within the control processor.