Mathematical functions, Security functions, Mathematical functions -13 security functions -13 – Rockwell Automation FactoryTalk View Machine Edition Users Guide User Manual

Page 491

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23

Use expressions

23-13

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Mathematical functions

Use math functions to calculate the square root, log (natural or base 10), or trigonometry
ratios (in radians or degrees) of a tag.

Security functions

Use security functions to control access to your application.

These functions allow you to determine a user’s identity or security rights in order to limit
access to the application based on these criteria.

This function

Returns this value

SQRT (expression)

The square root of the expression

LOG (expression)

The natural log of the expression

LOG10 (expression)

The base ten log of the expression

SIN (expression)

The sine of the expression in radians

COS (expression)

The cosine of the expression in radians

TAN (expression)

The tangent of the expression in radians

ARCSIN (expression)

The arc sine of the expression in radians

ARCCOS (expression)

The arc cosine of the expression in radians

ARCTAN (expression

The arc tangent of the expression in radians

SIND (expression)

The sine of the expression in degrees

COSD (expression)

The cosine of the expression in degrees

TAND (expression)

The tangent of the expression in degrees

ARCSIND (expression)

The arc sine of the expression in degrees

ARCCOSD (expression)

The arc cosine of the expression in degrees

ARCTAND (expression)

The arc tangent of the expression in degrees

This function

Returns this value

CurrentUserName( )

A string containing the name of the current user.

This function is case sensitive. All RSView 3.20 and earlier user
names use uppercase letters.

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