This device has the ability to be programmed at installation time as necessary for the installer. Through a simple procedure is possible to connect to the network and is possible to access to the internal memory of the device. At this point the installer has over 10sec to make the programming (signaled by an LED). Is possible to program the device as a relay step-by-step, step by step timed relay, dimmer, dimmer with memory. All stored data is retained in memory even without power (even the memory of the dimmer is not lost in case of power failure). At any time is possible to change the programming. This device also can be controlled by a digital signal from 0 ÷10 12V bus systems or PLC.