Rockwell Automation 5370-CVIM2 Module - Manual (Page 368)

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
10
is bit–xored with the decimal value
119
10
. 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:
87
10
= 1010111
2
119
10
= 1110111
2
0100000
2
= 32
10
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
ЗЗЗЗ
ЗЗЗЗ
ЗЗЗЗ
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.