PLC concepts
5.3 Processing of analog values
S7-1200 Programmable controller
124 System Manual, V4.2, 09/2016, A5E02486680-AK
In PLC applications, the typical method is to normalize the analog input value to a floating
point value between 0.0 and 1.0. Then, you would scale the resulting value to a floating point
value in the range of your engineering units. For simplicity, the following LAD instructions
use constant values for the ranges; you might actually choose to use tags:
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