16.5 LIMIT ( multiple alarm )
The function checks input variable x1 for 8 alarm values L1...L 8. Dependent of configuration by Mode 1 ...
Mode 8, the relevant alarm value is evaluated as MAX or MIN alarm.
With MAX alarm configuration, the alarm is triggered when the input signal is higher than the alarm value and finished
when it is lower than ( alarm value - hysteresis Xsd ).
With MIN alarm configuration, the alarm is triggered when the input signal is lower than the alarm value and finished
when it is higher than ( alarm value + hysteresis Xsd ).
Inputs/outputs
Analog input
x1
Input variable to be monitored
Digital outputs
l1 ... l8
The alarm statuses of alarm 1 to alarm 8:0=noalarm; 1= alarm case
Configuration parameters:
Parameter Description Range Default
Mode1 ... Mode8
alarm functions of the 8 alarms
max-alarm
MAX-alarm
t
min-alarm
MIN-alarm
Parameters:
Parameter Description Range Default
L1 ... L8
Alarm values of alarm 1 to alarm 8
-29 999 ... 999 999 0
Xsd
Switching hysteresis Xsd
0 ... 999 999 0
9499 040 50611 Limit value signalling and limiting
103 LIMIT ( multiple alarm )
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