Xylem XL Series H-522 - Plus - Manual (Page 110)

12-8 Digital I/O
XL™ Series
PC Interface View Built In Display Screen
S - Encoder Slope = 0.010 Encodr Slp[0.01000]
This option screen allows the user to enter a slope (or multiplier) value that is applied to each
count in order to calculate the final quadrature input value. The default slope is 0.01. Most shaft
encoder’s produce 100 counts per revolution, so a slope of 0.01 will equate to 1.00 for one
revolution. When using a pulley with a 1 foot circumference, each count is 0.01 foot of change
and one revolution is one foot of change.
PC Interface View Built In Display Screen
Not Available Using PC Menu Test Quad Out?
This option allows the user to test the simulated encoder output mode. Pressing the Enter key on
this screen will prompt the user to Press Up or Down. Pressing the up key will cause the XL™
to simulate 100 counts up, whereas pressing the down key will simulate 100 counts down.
Normally the user will first count up 100 counts and then do the test again by counting down 100
counts so the net change is 0.0 but looking on a chart drive a short vertical line would be visible.