Discrete-event simulation and control-theoretic approaches lend themselves to studying semiconductor manufacturing supply-chain systems. In this work, we detail a modeling approach for semiconductor manufacturing supply-chain systems in a hybrid DEVS/MPC testbed that supports experimentations for DEVS and MPC models using KIBDEVS/MPC. This testbed supports detailed analysis and design of interactions between discrete processes and tactical controller. A set of experiments have been devised to illustrate the role of modeling interactions between Discrete Event System Specification and Model Predictive Control models. The testbed offers novel features to methodically identify and analyze complex model interactions and thus support alternative designs based on tradeoffs between model resolutions and execution times.