機器RS232之Format:
[SYN][ID ][DATA#1][DATA#2][DATA#3][ Checksum ]
=[16H][23H][DATA#1 ~~ DATA#3][ID+DATA#1+...DATA3]
MSComm1.setting="38400,n,8,1"
DATA# Bit Parameter Range Binary Range#
#1 0 - 7 H_pressure -10...120cmH2O 0...950
#2 0 - 7 L_pressure
#3 0 - 4 Alarm_Point 0...1