5.2.4.11        Scaling Factor 1 and 2

Used with some SCALING TYPES. Applies to Analog Tags and Parameters. It is Driver dependent.  Analog Parameter Scaling Factor is defines the initial Scaling factor for Tags and BLOCK:PARAMETERS created using this parameter.   Parameter Scaling Factor can save time and typing or enforce a standard if this parameter will be used in a predictable way to create Tags or Blocks. Two most common SCALING TYPES using scaling factors are:

Linear scale MX+B -SCALING TYPE

This will convert input using the classic equation for a line (i.e. linear input) where: OUTPUT = M * INPUT + B

SCALING FACTOR 1 = M, the slope of the line.

SCALING FACTOR 2 = B, the intercept of the line with the x -axis.

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Scale Defined Input H/L to Span - SCALING TYPE

This will convert values between INPUT LOW and INPUT HIGH to specified Low and High Span (SPAN LOW and SPAN HIGH). This assumes the input is a value between INPUT LOW and INPUT HIGH. 

OUTPUT = (SPANHI - SPANLO) / (INHI - INLO) * (INPUT - INLO) + SPANLO

SCALING FACTOR 1 = INPUT HIGH.

SCALING FACTOR 2 = INPUT LOW.

See Scaling Type for more information.