One of the features of this series is the monitoring function regarding the correct operating of the solenoid valve. The electronics installed both in the subbase and in the connection module, enables to constantly monitor the efficiency of the driving coil of the solenoid valve. Possible variations with respect to the ideal operating conditions, for example a higher power consumption, variation in response times and an increased temperature are indicated through different ways of blinking by the LEDs on the Sub-D module that
connects the island with an electric signal to the PLC through a connection cable.