Next, a controller receives a signal that indicates {HEAD ~ the actual temperature} of the heating element along with {TAIL ~ an indication} of the desired temperature 
along with
Next , a controller receives a signal that indicates { HEAD ~ the actual temperature } of the heating element along with { TAIL ~ an indication } of the desired temperature
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH