Use I/O simulation in Logixpro to simulate the following process.

The preset value of a timer (T4:0.PRE) can be changed by pressing and releasing 5 assigned PBNO switches (I:1/0, I:1/1,.). The five preset values are 10s, 20s, 30s, 40s, and 50s.

Hint: First move 5 Timer preset values to N7:0 through N7:4

N7:0 =100

N7:1 = 200

N7:2 =300

N7:3 =400

N7:4 =500

Second, use the switches to move the integers to T4:0.PRE (pressing a switch triggers the move)

Example. Pressing and releasing I:0/0 will change the preset value to 100