Field help (RULCND) 

Enter the condition that has to be satisfied to apply this rule.
The reference must be in the Adonix language and can be entered directly or via the formula editor (right-click).
An expression that gives the value 1 is said to be "true".
An expression that does not give the value 1 is said to be "false".
If no condition is entered, it will be considered as "true".