LimitAlarm_LREAL (FB)

FUNCTION_BLOCK LimitAlarm_LREAL

This function block checks whether the value lies between an lower bound and an upper bound .

The output value will be set according to the result.

InOut:

Scope

Name

Type

Comment

Input

lrValue

LREAL

value to be tested

lrLimitPos

LREAL

upper bound

lrLimitNeg

LREAL

lower bound

Output

xExceedsPos

BOOL

TRUE: If

FALSE: Else

xExceedsNeg

BOOL

TRUE: If

FALSE: Else

xInLimits

BOOL

TRUE: If

FALSE: Else, also in the atypical case