Block Group: Logic
Icon:Not block icon

Reverses the value of its input. Returns FALSE when its input is TRUE and returns TRUE when its input is FALSE. Use NOT when you want to make sure a value is not equal to one particular value.

Input/Output Properties

These properties can take input and give output.

  • input (boolean)

input specifies a value that can be evaluated to TRUE or FALSE. If input is a number, a value of 0 evaluates to FALSE and a value of 1 evaluates to TRUE.

Output Properties

These properties can give output. They cannot take input.

  • output (boolean)

output returns FALSE if the input is TRUE, or returns TRUE if the input is FALSE.


This is a basic use of the block.

Dataflow Model Description
Not dataflow modelBecause the If block returns TRUE, the Not bock returns FALSE.