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11.4. Arithmetic Expressions

Arithmetic Expressions are formulas used in parameterized programming to calculate values.

You use square brackets instead of parenthesis in expressions. An expression may look like this:

#100 = #102*#101+[#10+23]

In plain English this expression says: Multiply the value of variable 102 and 101 and then add the sum of variable 10 and 23 and put the result in variable 100.

There are a number of functions that you can use in expressions. They are listed here. For an in-depth explanation of these, please refer to the Fanuc programming manual or the book mentioned in the introduction.

Name

Function

SIN

Sine (in degrees)

COS

Cosine (in degrees)

TAN

Tangent (in degrees)

ASIN

Arc sine

ACOS

Arc cosine

ATAN or ATN

Arc tangent with one or two arguments

SQRT or SQR

Square root

ABS

Absolute value

ROUND or RND

Rounding off

BIN and BCD

Currently not in use in the simulator

FIX

Rounding down to the closest integer

FUP

Rounding up to the closest integer

LN

Natural logarithm

EXP

Exponent using base e

POW

First argument to the power of the second one

ADP

Currently not in use in the simulator

OR

Logical OR performed on integers, bit by bit

XOR

Logical XOR performed on integers, bit by bit

AND

Logical AND performed on integers, bit by bit

MOD

Modulus

Example calculating the sine value of the value of variable 101:

#100 = SIN[#101]

Note that in the simulator, the logical bitwise operators will only work on integers.