Rockwell-automation 5370-CMPK Color CVIM Module MATH-PAK Manual de usuario descargar pdf (Pagina 49)

Chapter 4

Defining Formulas

4–34

yields a 1 result if both gages pass, and a 0 (zero) result if either or both

gages fail.

(GAGE1.2 AND GAGE2.2)

OR operator

The OR operator evaluates two operands as to whether or not each equals 0

(zero), and then provides either a 1 or 0 result, as follows:

1 result – If either or both operands are non-zero.

0 result – Only if both of the operands equal zero.

Format / Usage: In general, use two operands with the operator, placing the

OR operator in the formula between the two operands.

Example usage: This formula ORs the pass/fail results from gages 1 and 2.

A pass condition yields a 1 result, a fail yields a 0 (zero) result. The formula

yields a 1 result if either or both gages pass, and a 0 (zero) result only if both

gages fail.

(GAGE1.2 OR GAGE2.2)

NOT operator

The NOT operator inverts the logical evaluation (1 or 0) of an operand or

expression in a formula, assigning a logical value as follows:

0 – If the operand is non-zero.

1 – If the operand equals 0 (zero).

Format / Usage: Place the NOT operator to the immediate left of the operand

in the formula.

Example usage: This formula first ANDs the pass/fail results from gages 1

and 2. A pass condition yields a 1 result, a fail yields a 0 (zero) result.

(GAGE1.2 AND GAGE2.2) AND NOT GAGE3.2

Then, the formula takes the result of the first AND operation, and ANDs it

with the inverse (NOT) of the pass/fail result of gage 3. In this case, the

result of the formula is 1, only if both gage 1 and gage 2 pass, and gage 3

fails. Otherwise, the result is 0.

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Rockwell-automation 5370-CMPK Color CVIM Module MATH-PAK Manual de usuario Pagina 49