Rockwell Automation 5370-CMPK Color CVIM Module MATH-PAK - Manual (Page 10)

Chapter 2
Introduction to the MATH-PAK Option
2–2
Example formulas: This simple formula scales a window’s results by a
constant multiplier (using the multiply operator (
* ) and 2 operands –
window 4 and the constant, 0.75):
WINDOW4 * 0.75
The formula below averages the results from gages 1, 2, and 3 (using the add
operator (+) and the 3 gage operands, then using the divide operator ( / ) and
the constant, 3):
(GAGE1 + GAGE2 + GAGE3) / 3
How Formula Results Are Applied
Figure 2.1 illustrates how the inspection tool results are range-checked and
applied to discrete outputs, without MATH-PAK installed.
Figure 2.1 Inspection results data handling without MATH–PAK formulas
Color CVIM Inspection
Yes
No Range limits
exceeded or
tool failed?
Without
MATH-PAK
formulas, tool
results data and
pass/warn/fault
status are
available for use
directly – as is.
Bit(s) sent to
assigned output(s)
Inspection results data
from one or more tools
Appropriate
fault/warning bit(s)
cleared
Appropriate
fault/warning bit(s) set
Results data stored
in Color CVIM memory
To: Chassis
backplane
To: 1771 Remote
I/O port
To: RS-232 port
Upon completion of each inspection cycle, the Color CVIM module stores
the resulting inspection data from each analysis tool used in the inspection.
This information is accessible to host devices connected to the Color CVIM
through the backplane, 1771 Remote I/O port, or RS-232 port.