  We study the problem of periodic event-triggered control of interconnected
port-Hamiltonian systems subject to time-varying delays in their communication.
In particular, we design a threshold parameter for the event-triggering
condition, a sampling period, and a maximum allowable delay such that
interconnected port-Hamiltonian control systems with periodic event-triggering
mechanism under a time-delayed communication are able to achieve asymptotically
stable behaviour. Simulation results are presented to validate the theory.
