Rockwell-automation 5370-CMPK Color CVIM Module MATH-PAK Uživatelský manuál stáhnout pdf (Strana 34)

Chapter 4

Defining Formulas

4–19

Table 4.D (part 2 of 2)

Operator Definitions

Key / Symbol

Operator Type

*Result

Type

Operator Usage

Format

Operator Function

Statistical

AVG Average INT/FP AVG(X, Y, ...) Computes the average of a list of operands.

MAX Maximum INT/FP MAX(X, Y, ...) Finds the maximum numeric value among operands.

MED Median INT/FP MED(X, Y, ...)

Finds the middle numeric value in a list of operands by

sorting the list in ascending order and returning the

value located at the center position in the sorted list.

MIN Minimum INT/FP MIN(X, Y, ...) Finds the minimum numeric value in a list of operands.

MOD Mode INT/FP MOD(X, Y, ...)

Finds the listed value that appears most often. If no

value appears more than once, finds the lowest value.

VAR Variance FP VAR(X, Y, ...)

Computes the variance of a list of operands. The

variance is the sum of the square of the difference

between each operand and the average value of the

operands, divided by the number of operands.

Conditional

= Equal INT/FP X = Y

Produces a “1” result if the left operand is equal to the

right operand; otherwise, produces a “0” result.

〈 〉

Not equal INT/FP

X 〈 〉 Y

Produces a “1” result if the left operand is not equal to

the right operand; otherwise, produces a “0” result.

> Greater than INT/FP X > Y

Produces a “1” result if the left operand is greater than

the right operand; otherwise, produces a “0” result.

< Less than INT/FP X < Y

Produces a “1” result if the left operand is less than the

right operand; otherwise, produces a “0” result.

Greater than or

equal

INT/FP X >= Y

Produces a “1” result if the left operand is greater than

or equal to the right operand; otherwise, produces a

“0” result.

Less than or

equal

INT/FP X <= Y

Produces a “1” result if the left operand is less than or

equal to the right operand; otherwise, produces a “0”

result.

Other

. Decimal point –– ––

Used when entering a fixed point decimal value. Also

used in designating an operand sub-code.

, Comma –– –– Used to separate the operands in a list of operands.

( Open –– –– Used with “)” to prioritize operations with a formula.

) Close –– ––

Used with “(” to prioritize operations with a formula.

Also used to end operand listing for some operators.

*INT=integer format. FP = fixed point (decimal) format

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 88 89

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