Rockwell-automation 5370-CMPK Color CVIM Module MATH-PAK User Manual download pdf (Page 27)

Chapter 4

Defining Formulas

4–12

Operands

With respect to MATH-PAK formulas, an operand is a symbol (such as

GAGE1 or WINDOW3.2 or 32.45) that represents a mathematical or

logical value. Operands represent such values as tool results, statistics,

constants, or formula results (see Table 4.C, starting on page 4–14, for

operand listings and descriptions).

Figure 4.6 Operand keys

Initial

key set

Operand keys

To enter a particular operand in a formula:

• Pick the appropriate operand key on the formula entry keyboard – the

corresponding operand symbol appears in the display area of the

keyboard (see Figure 4.6).

• Typically you must then pick additional keys (decimal point and/or

numeric keys) to complete the operand entry.

For example, to enter the operand for gage 5 numerical results (number of

pixels, number of edges, and so on), enter the operand

GAGE5, as follows:

• Pick G on the formula entry keyboard – this will initially display the

operand

GAGE0 in the formula display area:

= ? GAGE0

Formula:

• Pick 5 – this will change the operand to GAGE5.

= GAGE5

Formula:

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 88 89

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Rockwell-automation 5370-CMPK Color CVIM Module MATH-PAK User Manual Page 27