Table of Contents
Boolean value (true or false)
Similar to a number entry, here the Boolean value “true” or “false” can be returned.
Negation (not)
This function is used to reverse the result of a Boolean argument.
This argument example is for illustrative purposes only. Negating the enabled lower natural boundary field does not produce a useful result.
Validity check
It enables numerical expressions to be verified. Therefore, the expression used needs to return a numerical value. The expression is checked to establish whether the result is true or false.
In this example, the content of the lower specification limit (K2110) is verified. If the field is left blank, the validity check will return a false result.
Logical operation of logical values
It enables the logical combination of Boolean expressions. The expressions that are used need to return a Boolean value.
This example verifies the lower (K2110) and upper (K2111) specification limits. For the result to be true, both expressions (1st and 2nd logical value) need to return “true”.
Comparison of numerical expression
It enables the logical combination of numerical expressions. The expressions that are used need to return a numerical value.
In this example, the critical performance is being checked. The aim is to establish whether it is equal to or less than "1.5". If so, the result is “true”.