For example, your alarm signal is
M0.0 alarm 1
M0. 1 Alarm 2
M0.2 alarm 3
M 1.0 alarm 4
Then build a variable address MW0 named "alarm".
Then select "Alarm" as the trigger variable for discrete alarm.
Where bit 0 is alarm 4.
The eighth place is alarm 1.
Number 9 is Alarm 2.
Bit 10 is alarm 3.
Pay attention to letters
16 bit variable can be used as 16 brother alarm signal.
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