4. Below is the timing diagram for a TON (timer ON) instruction. Please answer the questions below: TON timing diagram i. What happens to Q when ET (elapsed time) = PT (max time)? (2 pt) ii. Which variable going high starts the timer? (2 pt) iii. Create a rung of logic where the rising edge of bit Q for TON instruction called "Timer" will energize a normally open output called "Heater Relay". This output should be latched on (Set). (4 pts) 4. Below is the timing diagram for a TON (timer ON) instruction. Please answer the questions below: TON timing diagram i. What happens to Q when ET (elapsed time) = PT (max time)? (2 pt) ii. Which variable going high starts the timer? (2 pt) iii. Create a rung of logic where the rising edge of bit Q for TON instruction called "Timer" will energize a normally open output called "Heater Relay". This output should be latched on (Set). (4 pts)