  Modern power grids are dependent on communication systems for data
collection, visualization, and control. Distributed Network Protocol 3 (DNP3)
is commonly used in supervisory control and data acquisition (SCADA) systems in
power systems to allow control system software and hardware to communicate. To
study the dependencies between communication network security, power system
data collection, and industrial hardware, it is important to enable
communication capabilities with real-time power system simulation. In this
paper, we present the integration of new functionality of a power systems
dynamic simulation package into our cyber-physical power system testbed that
supports real-time power system data transfer using DNP3, demonstrated with an
industrial real-time automation controller (RTAC). The usage and configuration
of DNP3 with real-world equipment in to achieve power system monitoring and
control of a large-scale synthetic electric grid via this DNP3 communication is
presented. Then, an exemplar of DNP3 data collection and control is achieved in
software and hardware using the 2000-bus Texas synthetic grid.
