In the Guardian Control Panel go to the, “Elevator & Relay Setup” tab. On the bottom left you will see the Elevator module where you can configure how your Guardian keypads control relays on the relay board. Floor 1 never needs a relay assigned to it because the elevator car will always return that floor without the need for a code.
In this example there is a three story building with two elevator cars. Keypad ID #3 is assigned to one car and keypad ID #4 is assigned to the second. Each floor above floor one requires its own relay on the relay board to restrict floor access. So in this scenario there are two floors being restricted per car, for a total of four relays on the relay board being used.