WAGO 750-458, Руководство пользователя

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Commissioning 79
750-458 8AI; TC; Adjust
Manual
Version 1.3.0
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7.4 Scaling Measured Values
User scaling serves to adjust the process values. When user scaling is used, the
required accuracy of the process value resolution is changed, but not
fundamentally limited. User scaling is optional.
The values for “Gain” and “Offset” are required to perform user-defined scaling.
The scaling gain is the gain factor. The scaling offset is the offset on the y axis.
When these two values are input, a scaled process value is yielded as the result.
The following general scaling equation applies:
• y2 = y1 × (Gain / 1024) + Offset
The variables have the following meaning:
Table 42: Variable Legend – Scaling Measured Values
Variable Meaning/function
y2 Scaled process value
y1 Unscaled process value
Gain Scaling gain (gain factor)
Offset Scaling offset (offset)
1024 Resolution 1/1024
The y1 value (unscaled process value) serves as the input value for the user
scaling. With user scaling switched off, the y1 value is transferred unchanged to
y2.