ACOS_LREAL (arccosine Long Real)

The ACOS_LREAL instruction calculates the arc-cosine of a Long Real value.
Languages supported: Function block diagram, ladder diagram, structured text.
This instruction applies to the Micro810, L20E, L50E, and L70E controllers.
ACOS_LREAL
ACOS_LREAL
ACOS_LREAL parameters
Parameter
Parameter Type
Data Type
Description
EN
Input
BOOL
When set to true, the instruction is enabled.
  • TRUE: Execute the current computation.
  • FALSE: There is no computation.
Applies to ladder diagram programs.
IN
Input
LREAL
The value must be within [-1.0 .. +1.0].
ENO
Output
BOOL
Enables output. Applies to ladder diagram programs.
ACOS_LREAL
Output
LREAL
Arc-cosine of the input value (in set [0.0 .. PI]) = 0.0 for invalid input.

ACOS_LREAL examples

ACOS_LREAL function block diagram examples
ACOS_LREAL function block diagram examples
ACOS_LREAL ladder diagram examples
ACOS_LREAL ladder diagram examples
ACOS_LREAL structured text examples
ACOS_LREAL structured text examples
(* ST Equivalence: *)
cosine := COS_LREAL (angle);
result := ACOS_LREAL (cosine); (* result is equal to angle *)
Results
Results
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