Hybrid technical systems combine discrete-state eventdriven and continuous-state time-driven behavior. In this contribution, a general modeling formalism for such systems is proposed. The discrete subsystem is represented by an interpreted Petri net. In addition to external continuous inputs, discrete variables dependent on the net marking a ect the continuous subsystem which is a time-driven state space m o del. Limit violations of particular continuous state variables as well as external binary inputs are interpreted as events and change the discrete state of the system. In view of the analysis of hybrid technical systems reachability and stability are de ned. The modeling method i s a pplied to a mixing tank.
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