Rockwell-automation 5370-CVIM2 Module User Manual download pdf (Page 368)

100

101

Chapter 7

Inspection Tools

7–130

1891879binary result of the logic operation (“output”) is then converted back

to decimal form.

In a simple example, two values are “bit–xored,” as follows:

87bxor119

In this example, the decimal value 87

is bit–xored with the decimal value

119

. The effect is to convert all bit positions to 0 that have matching 1 bits

or 0 bits (that is, 1 and 1 become 0; 0 and 0 remain 0), as follows:

= 1010111

119

= 1110111

0100000

= 32

XOR

Statistics Functions

When you pick the key, the Stats Functions panel appears, as shown

by the example in Figure 7.100.

Figure 7.100 Example: Selecting the Statistical Functions Panel

The Stats Functions panel lists all of the statistics functions that a math tool

can perform.

After selecting a stats function, you must enter one or more values, as

required for the selected function, that are separated by commas and

followed by a closing parenthesis. At that point, the entry could operate as a

“formula” by itself; however, it would normally be used as one component of

a longer formula.

Here is a brief description of each of the “stats” functions:

*avg –– The “avg” (average) function calculates the average of a list of

values.

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