The controller PCL/ZC is designed for the real-time monitoring of ParkSol sensors parameters. The sensors are connected via the RS 485 interface. The circuit may have up to 127 magnetic, ultrasonic or TOF sensors. Controllers are interconnected over a 100 Mbit network. The device operates as a separate 3-port hub, so they can be connected in series, one after the other. The controller has 8 freely programmable inputs and 7 outputs and can be connected to the other parking control systems. The PCL/CC modification has a car-counting function.