Scaling Measured Values; Table 35: Variable Legend - Scaling Measured Values - WAGO 750-496 Manual

8ai 0/4-20ma s.e., 8-channel analog input; 0/4-20 ma, single-ended

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WAGO-I/O-SYSTEM 750

750-496 8AI 0/4-20mA S.E.

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7.3

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 35: Variable Legend – Scaling Measured Values

Variable

Gain

Offset

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.

Meaning/function

Scaled process value

Unscaled process value

Scaling gain (gain factor)

Scaling offset (offset)

Resolution 1/1024

Commissioning

Manual

Version 1.2.2

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