POW   **  POWL

Function - Calculates a power.

Inputs

IN : REAL/LREAL   Real value
EXP : REAL/LREAL  Exponent

Outputs

Q : REAL/LREAL   Result: IN at the 'EXP' power

Remarks

Alternatively, in ST language, the "**" operator can be used. In LD language, the operation is executed only if the input rung (EN) is TRUE. The output rung (ENO) keeps the same value as the input rung. In IL, the input must be loaded in the current result before calling the function. The exponent (second input of the function) must be the operand of the function.

ST Language

Q := POW (IN, EXP);
Q := IN ** EXP;

FBD Language

LD Language

(* The function is executed only if EN is TRUE *)
(* ENO keeps the same value as EN *)

IL Language:

Op1: LD  IN
     POW EXP
     ST  Q    (* Q is: (IN ** EXP) *)

See also

ABS   TRUNC   LOG   SQRT