Multi-Tech Systems 7500 - Manual (Page 225)

ION 7500 / ION 7600 User’s Guide Analog Input Module
Digital and Analog I/O Technical Note Page 225
N OTE
Once you have set the Port setup register to the appropriate analog input port on the meter, link the
ScaledValu output register to another software module or framework for analysis.
Detailed Operation
The following example illustrates the Analog Input module with an input coming
from 50% of the highest possible input value. The Analog Input module takes the
input value and calculates what it corresponds to on the new scale, which is
defined by the Zero Scale and Full Scale registers. In this case, 50% on the new scale
is a value of 75. This value is written into the ScaledValu output register.
Setup Register Description
Zero Scale
Defines the value that appears in the ScaledValu output register when the
lowest value from the hardware port is applied
Full Scale
Defines the value that appears in the ScaledValu output register when the
highest value from the hardware port is applied
Port Defines the hardware port that provides the signal