Linear conversion specifies the base and converted values that are calculated during runtime.
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Linear conversion configuration. |
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Linear conversion formula. |
Linear conversion configuration
Check Linear in the Device conversion box.
Enter values as follows.
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Raw values |
Low |
Two valid raw values. |
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High |
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Converted values |
Low |
Engineering unit values that correspond to the low and high raw values. |
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High |
Linear conversion formula
These four values calculate the linear conversion for the point.
The conversion formula is:
Where
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EU value |
= |
the Engineering Units value |
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RL |
= |
Low raw value |
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RH |
= |
High raw value |
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CL |
= |
Low conversion value |
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CH |
= |
High conversion value |
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Raw value |
= |
the value read from the device. |
The inverse of this expression converts set point values that are entered by users to raw values. The raw values can be downloaded to the device.
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Step 3.2. Configure the conversion type for a device point. |
