During monitoring, the microcomputer compares signals from the detectors with the corresponding sequence pattern for each working group to monitor {HEAD ~ the working conditions} of {TAIL ~ the working groups} 
During monitoring , the microcomputer compares signals from the detectors with the corresponding sequence pattern for each working group to monitor { HEAD ~ the working conditions } of { TAIL ~ the working groups }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL