User`s manual

The analog bars am updated rapidly, as quickly as the PC
can update the screen.
LED Indicators @
These simulated LED indicators correspond to the
following LEDs on the SLS:
l a - discrete output A.
l b-discrete output B.
l e - fault/error
l c-contrast
When an LED appears on the screen, it is “on,” and when
an LED does not appear, it is “off.”
Note in Figure 7.2 (page 7-3) that the a and b LEDs are
“on,” but the e and c LEDs are “off .”
-
Results Statistics 0
These two lines each contain several elements of statistical
data that are based on the analog A and B inspection
results, as follows:
l Mean -This is the current average of all results values,
and it is calculated using the following formula:
n
.
x = i=, xi
c
n
l Standard Deviation - This is the current standard
deviation of all result values, and it is calculated using
the following formula:
s =
J
t$m($Xi)2/n -
i=l
i=l
(n-1)
7-I