Boolean (BOOL) data type

Boolean variables (BOOL) can take one of the Boolean values: TRUE or FALSE. Boolean variables are typically used in Boolean expressions.
TIP:
FactoryTalk Design Workbench
 evaluates all parts of Boolean literal expressions. This differs from the IEC61131-3 standard, which states that Boolean expressions can be evaluated only to the extent necessary to determine the resultant value.
Boolean literal expressions:
  • TRUE is equivalent to the integer value 1.
  • FALSE is equivalent to the integer value 0.
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