There are differences in how cyber-attack, sabotage, or discrete component failure mechanisms manifest within power plants and what these events would look like within the control room from an operator’s perspective. This research develops capability to represent a typical ICS network representative of what might be found within a power plant or similar system, and further provides a method to connect that model to an existing nuclear power plant (NPP) system simulator. Although the authors were not able to automate the interconnection to the simulator the planned cyber behavior was represented in script files available to manage the simulator behavior. The authors created expected behavior inputs to the simulator utilizing the developed ICS network configuration and then modeled those behaviors into the simulator script. The selected scenarios were run with qualified operators from a NPP to ascertain both system response and operator response. Key parameters such as reactor coolant system (RCS) temperature, pressurizer (PZR) pressure and PZR level were tracked to gage results regarding plant safety.