MATH.Hysteresis_LREAL (FB)

(CAA_Mathematics.library)

This function block will set the output variable to TRUE, if the input value is smaller than an lower bound ; it will set the Boolean output variable to FALSE, if the input value exceeds the upper bound . If lies between the lower and the upper bound, the value of the output variable will rest unchanged by the module.

Input:

lrValue	LREAL	input value
lrLimitPos	LREAL	upper bound
lrLimitNeg	LREAL	lower bound

Output:

xOut

BOOL

Boolean output variable:

FALSE, if and

TRUE, if and

xOut else