Values Evaluation Against Limits

ThingWorx Applications User Interface Help Center > Common Functionality > Configuration > Characteristics > Limits Usage > Values Evaluation Against Limits

There are three different data types that can use limits, each behaving differently.

Numeric Limits

Numeric Limits are mostly used to evaluate values as most signals and entries are numbers. The limit evaluation follows this evaluation sequence:

Priority	Limit type	Condition
1	Entry	Value <= LowEntry OR value >= HighEntry
2	Reject	Value <= LowReject OR value >= HighReject
3	Warning	Value <= LowWarning OR value >= HighWarning
4	User	Value <= LowUser OR value >= HighUser
5	Nominal / Good	If none of the conditions above are met, the application assumes the value is within limit tolerance.

Boolean limits

Boolean Limits are used to validate signals and entries that are either true or false (1 or 0). They only require having a nominal value configured.

• If the value matches the nominal value, the value is shown as valid

• Any other value is considered outside of the limit

String limits

String limits are used to validate signals and entries that contain alphanumeric characters. They are NOT case sensitive, and the application will not trim leading or trailing spaces when importing limits. Values to evaluate must match the limit to be validated.

Priority	Limit type	Condition
1	Warning	Value = LowWarning OR value = HighWarning
2	Nominal	Value = Nominal Value
3		Any other value than Nominal or Warning will be considered as breaking the Reject limit

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