NE <>

Operator - Test if the first input is not equal to the second input.

• Both inputs must have the same type.
• Comparisons can be used with strings.
  • With strings, the lexical order is used for comparing the input strings.
    • Examples:
      ABC is less than ZX.
      ABCD is greater than ABC.
• Equality comparisons cannot be used with TIME variables.
  • This is because the timer actually has the resolution of the target cycle and test can be unsafe as some values can never be reached.

Inputs

Input	Data Type See Data Types.	Range	Unit	Default	Description
IN1	ANY				First input.
IN2	ANY				Second input.

Outputs

Output	Data Type See Data Types.	Range	Unit	Description
Q	BOOL	FALSE, TRUE		TRUE if IN1 is not equal to IN2.

FBD Language Example

FFLD Language Example

• In the FFLD Language, the input rung (EN) enables the operation.
  • The output rung is the result of the comparison.
• The comparison is executed only if EN is TRUE.

IL Language Example

Not available.

ST Language Example

Q := IN1 <> IN2;

See Also

• CMP
• EQ =
• GE >=
• GT >
• LE <=
• LT <