Rockwell Automation 2711-ND3 PanelBuilder v2.60 Software User Manual - Manual (Page 182)

12–2 Creating Bar Graphs, Indicators, Numeric Displays
Publication 2711-6.0
Standard Data Displays
Standard data and bar graph displays show a numeric value stored at
a controller tag address.
20
Controller
Counter
Value
Package Detect
20
Controller
Scaled Data Displays
Scaled data and bar graph displays take raw numeric values and
mathematically manipulate them so that values are shown in standard
units such as gallons, feet per second, and pounds per square inch.
Values from the logic controller are scaled using the formula:
y=mx+b
y=scaled (displayed) value
m=scale (multiplier)
x=controller value
b=offset
The scale and offset values are entered in the Tag Editor. The
following example shows the use of a scaled data display.
Flow Rate
Transducer
Value
Valve #1
Flow Rate
Transducer
Controller
13
Scaling
(x 0.0059 + 10)
510 510
Scaling Data