{TAIL ~ Each device} is allocated a fixed time at which {HEAD ~ its input and diagnosis data} is transmitted as data frames to the controller 200 
{ TAIL ~ Each device } is allocated a fixed time at which { HEAD ~ its input and diagnosis data } is transmitted as data frames to the controller 200
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH