Logic Guide - COS (Built-in Functions, Function Blocks, and Conversions)

COS

Function Name	COS
Description	Converts a REAL or LREAL input into a cosine value that is the output. The cosine value is also a REAL or LREAL.
Arguments	Input 1 {REAL or LREAL}. This value is in radians. For more information on the data types for the inputs and outputs, see Data Type Hierarchy.
Returns	Output {REAL or LREAL}

Function Name

COS

Description

Converts a REAL or LREAL input into a cosine value that is the output. The cosine value is also a REAL or LREAL.

Arguments

Input 1 {REAL or LREAL}. This value is in radians.

For more information on the data types for the inputs and outputs, see Data Type Hierarchy.

Returns

Output {REAL or LREAL}

Example:

Function Block Diagram - COS:

In this example, the input of 5 is provided by the CurrentValueFormatted property of a point. The COS function converts the value into a cosine value of 0.283662185463226 and this is used as the output.

ST Program - COS:

The syntax for a COS function in an ST Program is:

Output := COS (Input 1);

Where Output and Input 1 are defined as variables earlier in the ST program. The Input 1 variable represents a REAL or LREAL type of value (the output is the same type of value as Input 1).