2 mathematical function commands – Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set User Manual

Page 704

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Paramacros

Chapter 28

28-4

This subsection lists the basic mathematical functions that are available on
the control and their use. Use these functions to accomplish mathematical
operations that are necessary to evaluate the trigonometric and other
complex mathematical equation such as rounding off, square roots,
logarithms, exponent, etc. Table 28.B lists the basic functions that are
available and their meanings.

Table 28.B

Mathematical Functions

Function

Meaning

SIN

Sine (degrees)

COS

Cosine (degrees)

TAN

Tangent (degrees)

ATAN

Arc Tangent (degrees)

ASIN

Arc Sine (degrees)

ACOS

Arc Cosine (degrees)

SQRT

Square Root

ABS

Absolute Value

BIN

Conversion from BCD to Decimal

BCD

Conversion from Decimal to BCD

ROUND

Rounding Off (nearest whole number)

FIX

Truncation Down

FUP

Truncation Up

LN

Logarithms (base e)

EXP

Exponent

When programming these functions, the value on which that function is to
be performed must be included in brackets: for example, SIN [10]. The
exception to this is the arc tangent function. The format to ATAN requires
the division of two values. For example, ATAN [10]/[2] is used to
calculate the arc tangent of 5.

The functions in Table 28.B are executed from left to right in a program
block. These functions are executed before the control executes any
mathematical operators such as addition or subtraction. This order of
execution can be changed only by enclosing operations in brackets [].
Operations enclosed in brackets are executed first.

28.2.2
Mathematical Function
Commands

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