I am trying to build up a home automation system(retrofit) with existing conventional switches(230VAC).
But I am looking for automation system without replacing existing conventional switches along with controller digital output. In this case I need to control from both possible outputs. i.e either of command should turn ON/OFF the lights.
In simple terms, just connect this fibaro switch with existing switch then you can control the load from both existing switch and controller location.
Same way,please help me out to bring this to home automation PLC.