ABS

The following table shows the errors which may occur while executing the function and the value returned by the function in the corresponding error case. As described, the value returned by the function in the error case depends on the value of the input (for example, if the input value of data type REAL is not a legal number (NaN), the function returns NaN).

The POU is only executed if TRUE is applied to the EN input. If EN = FALSE, the POU is not executed and ENO = FALSE indicates the inactivity.

If any of the errors listed under "Error behavior" occurs while executing the function, ENO is set to FALSE.