Watlow ANASOFT - Manual (Page 63)

Trend Plot
ANASOFT User’s Guide 53
Trend Plot
The Trend Plot screen offers graphic trending for both real time and past
history of up to 48 hours. Three parameters can be plotted: process
variable, output value, and setpoint. You can use any combination of
these values. You can also combine loops, and plot up to three different
loops at the same time.
The screen is a combination of past and real time trend plotting. The
past is on the left 5/6 of the screen and the real time is on the right 1/6.
If an EGA video card is installed in the computer, the screen will be
colored for easier identification. If a CGA video card is installed, the
plot will be displayed in black and white only.
Getting Here
Press F7 from the Overview screen or the Loop Setup screen.
A legend for the
parameters being
plotted One segment out of six in the time
scale. Set in minutes or hours.
Appears when the out-
put value is plotted.
Ranges from -100% to
+100% for dual output
loops, and 0% to 100%
for others.