Connect_Simpower_To_RTAC

Hello everyone !!!! I try to develop a test bench for cybersecurity in micro grids (Generations, Breakers,...) . I plan to simulate my grid on Simpower. I have a simulated PLC in a VM and a real RTAC. I would like to establish bidirectional communication between my grid simulated on Simpower and the physical RTAC (or the simulated PLC on VM). The RTAC is connected to a SCADA system which should be able to send commands to the grid (Simpower). RTAC, Simpower, and the SCADA system are located on separate machines. Any approach to establish a connection between Simpower and the RTAC (or PLC)? Thanks !!!