need help with a program for float switches

I was hoping someone could help me with a basic program.
I would like 2 float switches to control 1 switchable socket. 1 to turn the switch on the other to turn the switch off.

My situation is that I have an overflow tank with 2 float switches mounted in it. 1 high and 1 low. In the bottom of the overflow tank I have a pump connected to a switchable socket on a PAB powerbar. When the water height in the overflow tank rises to the high float switch, I would like the pump to turn on, and when the water level then drops back to the low float switch, I want the pump to shut off.

I am running a Profilux IIIex with and expansion box.
I need this program to work the 2 float switches plugged into the expansion box with a splitter.

Thanks

what about using the mode "min-max-control"?

Thanks for the Reply Matthias.
I am not sure how to use this function. Are you able to tell me where I might find some help setting this up?
regards
Hamish

This subject is described in the programming guide under Level/ Sensor settings/ Operational Mode/ Min-Max control...

Thanks Carolin, I now have the system working perfectly.
regards
Hamish