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12-8 Motion Mate™ DSM314 for Series 90™-30 PLCs User's Manual

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January 2001 GFK-1742A

Local Logic Arithmetic Operators

The Local Logic language contains familiar constructs to perform basic signed integer arithmetic

computations. The language supports 32-bit arithmetic in the Local Logic program and limited use

of 64/32-bit arithmetic. All operations require two operands except for the ABS function, which

returns the absolute value of a variable or numeric constant.

Table 12-3. Arithmetic Operators

Operator Meaning

+ Addition

-Subtraction

* Multiplication

/ Integer Division

MOD Modulus

ABS Absolute Value

Arithmetic expressions may only be used in assignment statements with one operation per

statement.

The arithmetic operations do not require data type conversion functions since the motion module

automatically does this operation.

Operator +

Adds source1 to source2 and stores the result in destination

Syntax

destination := source1 + source2;

The + operator syntax has these parts:

Part Description

Destination Any writeable local logic variable except Dxx registers.

source1 Any readable local logic variable/constant except Dxx registers.

source2 Any readable local logic variable/constant except Dxx registers.

Overflow

– Set if the result of an addition is greater than 2,147,483,647 or less than

–2.147,483,648. The Module_Status_Code is set to a value of 16#0095, which is a

status-only error.

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