Rockwell Automation 2706-MB1 MESSAGEVIEW 421 SOFTWARE MANUAL - Manual (Page 87)

4–39 Planning an Application
Publication 2706-817
Example: Scaling a data entry variable
The offset (b) is specified as 2 and the scale (m) is specified as .01.
If an operator enters a value of 30 for (y):
x =
y - b
m
=
30 - 2
.01
= 2800
The terminal sends a value of 2,800 to the controller, which
compares it to the value from the weigh scale transducer:
Value from
Weigh Scale= 2,800
Operator Inputs
Weight of 30 Pounds
MessageView Terminal
Scales Value to 2,800
for Match Code
Weigh Scale Value (2,800)
Matches Input Value (2,800)
Package is Accepted
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