"Define such a structure:
typedef struct
{
uchar DC0_ ALA:1; // Power 0 alarm
uchar DC1_ ALA:1; // Power supply 1 alarm
uchar AC_ ALA:1; // Power failure alarm
uchar UN_ H_ ALA:1; // Loss of lock alarm of the same frequency channel machine
uchar UN_ L_ ALA:1; // Out of lock alarm of different frequency channel machine
uchar FAR_ ALA:1; // Remote communication failure alarm
uchar OPEN_ ALA:1; // Placket alarm
uchar x:1;
}ALARM;// System alarm structure definition
Define variables and initialize:
idata ALARM old_ alarm={0，0，0，0，0，0，0，0};
In the main() function, apply the bit field as follows:
if（old_ alarm.DC0_ ALA！= TDZ_ GET.alarm.DC0_ ALA||old_ alarm.DC1_ ALA！= TDZ_ GET.alarm.DC1_ ALA||old_ alarm.AC_ ALA！= TDZ_ GET.alarm.AC_ ALA||old_ alarm.UN_ H_ ALA！= TDZ_ GET.alarm.UN_ H_ ALA||old_ alarm.UN_ L_ ALA！= TDZ_ GET.alarm.UN_ L_ ALA||old_ alarm.FAR_ ALA！= TDZ_ GET.alarm.FAR_ ALA||old_ alarm.OPEN_ ALA！= TDZ_ GET.alarm.OPEN_ ALA）
{
old_ alarm.DC0_ ALA=TDZ_ GET.alarm.DC0_ ALA;
old_ alarm.DC1_ ALA=TDZ_ GET.alarm.DC1_ ALA;
old_ alarm.AC_ ALA=TDZ_ GET.alarm.AC_ ALA;
old_ alarm.UN_ H_ ALA=TDZ_ GET.alarm.UN_ H_ ALA;
old_ alarm.UN_ L_ ALA=TDZ_ GET.alarm.UN_ L_ ALA;
old_ alarm.FAR_ ALA=TDZ_ GET.alarm.FAR_ ALA;
old_ alarm.OPEN_ ALA=TDZ_ GET.alarm.OPEN_ ALA;
ala=0;// Determine alarm conditions
}, read the full text, technical section
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