Reer MOSAIC M1 Installation And Use Manual page 193

MODULAR SAFETY INTEGRATED CONTROLLER MOSAIC
(A) < Threshold value - hysteresis
(A) <= Threshold value
(A) > Threshold value
(A) < Threshold value - hysteresis
(A) < Threshold value - hysteresis
Division analysis: Warning enable -> warning threshold
If you activate the Warning enable, a further output is added to the function block.
You can specify a threshold value and a hysteresis.
The option "Lower limit" determines the behavior of the comparison.
Division analysis: Warning enable -> threshold -> hysteresis
Following it is described the behaviour of the alert threshold comparator when
"Alert lower limit" is not selected.
The output state of the Warning comparator depends on the value of the
measurement and on its current state. There are two possible states:
➔
OVER THRESHOLD: the output of the comparator is a logic 1 (TRUE)
➔
UNDER THRESHOLD: the output of the comparator is a logic 0 (FALSE)
The following figure and table exemplify the states of the Alert threshold:
8540780 • 25/01/2023 • Rev.43
DIVISION VALUES (A)
Current state of Next state of threshold
threshold comparator comparator
UNDER THRESHOLD UNDER THRESHOLD
UNDER THRESHOLD UNDER THRESHOLD
UNDER THRESHOLD OVER THRESHOLD
OVER THRESHOLD OVER THRESHOLD
OVER THRESHOLD UNDER THRESHOLD
193