If you don't know, how to include the offered schema with a relay, then it would be better to use a Logo 12/24RCE instead of AC230V. If you are not a qualified electrician, you are only putting yourself and others at risk.

Regards, Scorp

If you mean my comment, this is only a precaution, when you use mixed voltages DC12/24V and AC230V. It would be better to use only low voltage, if possible for you. Then you only need a mains adapter for the Logo controller and all components work with low voltage.

Another way would be a rain sensor with AC230V supply and a potential free output usable for AC230V. Then all components work with AC230V and the rain sensor will be isolated internally.

Regards, Scorp