For the temperature control program of Figure 10-14, rung No. 1 contains the logic that a) detects when the temperature drops below the low set point. b) allows the thermocouple temperature to be...

For the temperature control program of Figure 10-14, rung No. 1 contains the logic that a) detects when the temperature drops below the low set point. b) allows the thermocouple temperature to be monitored by the LED display board. c) detects when the temperature rises above the high set point. d) switches the heater on and off.