I want to make a pump system that has 3 functions: function 1 is that the pump is always on, function 2 is that the pump works with an analog sensor, that is to say, as soon as the sensor sends an output between values, the pump turns on. I don't really understand how to do this. Can someone help me? function 3 is when the pump is continuously off. l1 is function 1. L3 is function 2 and I haven't added function 3 yet. then I leave all functions with a flag. then I put all the flags together and connect them to q1. then I also have a contact and a brake contact for the lights when the pump is on or off.

A possible solution is attached.

I1 and I2 are normally open contacts, I3 is normally closed.

In automatic mode, the analog threshold trigger behind AI1 turns the pump on when the value of AI1 is below 40%. The pump turns off again when the value of AI1 is above 50%.
You will need to adjust the values ​​in the threshold switch to suit your requirements.

thank you for this solution it is very useful